JP2000196971A - Video display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a comprehensible channel selecting function by performing three-dimensional animation display by texture-mapping the surface of a three- dimensional object by segmenting a partial video from an inputted video. SOLUTION: A video receiving means 1101, a memory input-output control means 1103, and a memory means 1104 segment a partial video from an input video and an object position deciding means 1105, a seeing-through/projection converting means 1106, and a rasterizing means 1107 hold the partial video in a frame memory means 1108 by sticking the video to the surface of a three- dimensional object. Then an object position comparing means 1110 and a channel deciding means 1111 select a channel in response to an input from a user and a video displaying means 1109 switches the video held in the memory means 1108 to the video of the selected channel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video display device for receiving a television broadcast or the like and selecting a channel by displaying a program guide.

[0002]

2. Description of the Related Art As digital multi-channels in television broadcasting have advanced, the necessity of a television program guide is required. In digital CS broadcasting, a program guide is performed by broadcasting a promotion channel by multi-screen display.

The conventional multi-screen display uses a method in which a display screen is divided into rectangles, and images and channels are assigned to the respective divided areas and displayed. To select an image or channel from the multi-screen display, a cursor or a selection frame is displayed to indicate the image or channel that can be selected by the user, and the user uses an input device such as a cross button or a mouse to display a selection frame. Move the cursor or frame, and when the cursor or frame matches the image or channel that the user wants to select, press the select button to select the image or channel and select the display image from multi-screen display. Switch to full screen display of video and selected channel.

FIG. 5 is an explanatory diagram relating to a conventional channel selection method using multi-screen display. In the figure, a frame display is used to show images and channels that can be selected by the user. The frame display is sequentially moved from circle 1 to circle 2, circle 2 to circle 3, circle 3 to circle 4, circle 4 to circle 1, and the like by using a cross button or a mouse, and it is determined that the user wants to see circle 2. In this case, when the frame display matches the circle 2, if the selection decision button is pressed, the user switches to the video or channel corresponding to the circle 2, and the user views in full screen display.

[0005]

However, the conventional multi-screen display uses a display method in which the display screen is divided into rectangles. When the number of divisions increases, the display size of an image per division decreases. The image becomes difficult to see,
There was a problem that it became difficult to select a channel. In addition, when selecting a channel or a video, there is a problem that an operation procedure such as moving a cursor must be performed, and then a selection decision button must be pressed.

In view of the above, in the present invention, a partial video of an input video composed of multiple screens is cut out and pasted as a texture on the surface of an object in a three-dimensional virtual space, and three-dimensional animation display is used. It is an object of the present invention to solve the above-mentioned problem by selecting a program by using the program.

[0007]

According to a first aspect of the present invention, there is provided an input video receiving means for receiving an input signal transmitted by broadcast or via a network and outputting an input video signal; A memory means for holding a signal, a memory control means for writing the input video signal to the memory means, outputting a memory control signal to the memory means in accordance with area cutout information, and reading a partial video signal from the memory means; The area cutout information and the three-dimensional information are separated from parameter information composed of information and area cutout information indicating a position at the time of cutting out an area used as a texture from the input video signal. Parameter separating means for outputting to the memory input / output control means and outputting the three-dimensional information to object position determining means Object position determining means for arranging a three-dimensional object in a three-dimensional virtual space from the three-dimensional information and outputting object coordinate information of the three-dimensional object in the three-dimensional virtual space; and perspectively projecting the object coordinate information onto a display projection plane. And a perspective projection conversion means for converting the image data into a display projection plane coordinate information; and a texture mapping of the partial video signal on a predetermined surface of the three-dimensional object based on the projection plane coordinate information to generate and output a three-dimensional video signal. A video display device comprising: a rasterizing unit that performs the above-described operation; a frame memory unit that holds the three-dimensional video signal and outputs an output video signal at a predetermined timing; and a video display unit that displays the output video signal.

[0008] Thus, a predetermined area is cut out from the transmitted and input video and pasted on the surface of the object in the three-dimensional virtual space, thereby realizing the three-dimensional display of the video.

According to a second aspect of the present invention, there is provided an input image receiving apparatus for receiving an input signal composed of a predetermined number of partial images transmitted through a broadcast or a network and outputting the input image signal. Means, a memory means for holding the input video signal, and a memory for writing the input video signal to the memory means, outputting a memory control signal to the memory means according to area cutout information, and reading a partial video signal from the memory means Control means, three-dimensional information corresponding to a predetermined number of partial images, and region cutout information corresponding to a predetermined number of partial images, indicating a position at which a region used as a texture is cut out from the input video signal. The area cutout information and the three-dimensional information are separated from the parameter information based on a parameter output control signal, and the area cutout is separated. Information is output to the memory input / output control means, the three-dimensional information is output to an object position determining means, and a three-dimensional object is arranged in the three-dimensional virtual space based on the three-dimensional information. Object position determining means for outputting object coordinate information of a three-dimensional object, perspective projecting means for perspectively projecting the object coordinate information onto a display projection plane, and converting the object coordinate information into display projection plane coordinate information; When performing the texture mapping of the partial video signal on a predetermined surface of the three-dimensional object based on the partial video signal, the parameter output control information is output to the parameter separating unit and the number of times corresponding to the predetermined number of the partial video is executed. Rasterizing means for generating and outputting a video signal, and holding the three-dimensional video signal A video display device comprising a frame memory means for outputting an output video signal at a predetermined timing, an image display means for displaying the output video signal.

[0010] Thus, a region is cut out from a video transmitted as a multi-screen along a division boundary of the multi-screen and is pasted on a surface of an object in a three-dimensional virtual space, thereby displaying a three-dimensional display of a plurality of videos. Realize.

According to a third aspect of the present invention, there is provided an input image receiving apparatus for receiving an input signal composed of a predetermined number of partial images transmitted through a broadcast or a network and outputting the input image signal. Means, an area separating means for separating an area from the input video signal in accordance with area cutout information, and outputting a memory storage video signal, a memory means for holding the memory storage video signal, and a memory storage video signal. Memory control means for writing to the memory means, outputting a memory control signal to the memory means in accordance with area cutout information, and reading a partial video signal from the memory means;
From parameter information composed of three-dimensional information corresponding to a predetermined number of partial images and region cutout information corresponding to a predetermined number of partial images, indicating a position at which a region used as a texture is cut out from the input video signal, Based on a parameter output control signal, the area cutout information and the three-dimensional information are separated, the area cutout information is output to the memory input / output control means, and the three-dimensional information is output to the object position determination means. Separation means;
An object position determining means for arranging a three-dimensional object in a three-dimensional virtual space based on the three-dimensional information and outputting object coordinate information of the three-dimensional object in the three-dimensional virtual space; A perspective projection conversion unit for converting the projection image into display projection plane coordinate information; and performing parameter mapping control information when executing the texture mapping of the partial video signal on a predetermined plane of the three-dimensional object based on the projection plane coordinate information. Rasterizing means for outputting to the parameter separating means and executing the number of times corresponding to a predetermined number of partial images to generate and output a three-dimensional image signal, holding the three-dimensional image signal, and outputting an output image signal at a predetermined timing Frame memory means and video display means for displaying the output video signal It is a video display device.

[0012] Thereby, an area is cut out from the image,
When pasting onto the surface of an object in the three-dimensional virtual space, instead of holding the entire video in the memory, only the clipped area is held in the memory, thereby reducing the amount of memory.

According to a fourth aspect of the present invention, there is provided an input image receiving apparatus for receiving an input signal composed of a predetermined number of partial images transmitted through a broadcast or a network and outputting the input image signal. Means, a memory means for holding the input video signal, and a memory for writing the input video signal to the memory means, outputting a memory control signal to the memory means according to area cutout information, and reading a partial video signal from the memory means A control unit, a video analyzing unit that determines a predetermined number from the input video signal and outputs region number information, and cuts out a region to be used as a texture from the three-dimensional information and the input video signal based on the region number information Parameter information, which indicates the current position, and area cutout information, and generates the area cutout based on a parameter output control signal. Parameter output means for outputting the three-dimensional information to the memory input / output control means, and parameter generating means for outputting the three-dimensional information to the object position determining means. Object position determining means for outputting object coordinate information of a three-dimensional object in space; perspective projection transforming means for perspectively projecting the object coordinate information onto a display projection plane and converting the object coordinate information into display projection plane coordinate information; When performing the texture mapping of the partial video signal on a predetermined surface of the three-dimensional object, the parameter output control information is output to the parameter generation means and the number of times corresponding to the predetermined number of the partial video is executed. Rasterizing means for generating and outputting a three-dimensional video signal; And an image display device comprised of a frame memory means for outputting an output video signal at a predetermined timing, an image display means for displaying the output video signal.

Thus, the number of divisions of an image transmitted on a multi-screen is recognized after being received, and the shape information of a three-dimensional object is generated according to the number of divisions. Realize the response.

According to a fifth aspect of the present invention, an input signal composed of a predetermined number of partial images, which is transmitted via a broadcast or a network, is selectively received based on channel information. Input video receiving means for outputting a signal, memory means for holding the input video signal, writing the input video signal to the memory means, outputting a memory control signal to the memory means in accordance with area cutout information, Memory control means for reading a partial video signal from the memory, three-dimensional information corresponding to a predetermined number of partial videos, and an area corresponding to the predetermined number of partial videos, indicating a position at which a region used as a texture is cut out from the input video signal From the parameter information composed of the cutout information and the channel correspondence information indicating the correspondence information between the object and the channel, Separating the area cutout information and the three-dimensional information based on a meter output control signal, outputting the area cutout information to the memory input / output control means, and outputting the three-dimensional information to object position determination means; The channel correspondence information is obtained by a parameter separating unit that outputs the information to the channel determining unit.
Object position determining means for arranging a three-dimensional object in the three-dimensional virtual space, outputting object coordinate information of the three-dimensional object in the three-dimensional virtual space, and outputting object arrangement order information from the object coordinate information according to a user input; Comparing the position of each object with the object arrangement order information, selecting an object under a predetermined condition, and outputting the selected object information to a channel determining means; and comparing the selected object information with the channel correspondence information. Channel determining means for determining a channel corresponding to the selected object and outputting channel information, and a perspective projection transformation for perspectively projecting the object coordinate information onto a display projection plane and converting the object coordinate information into display projection plane coordinate information. Means for outputting the parameter output control information to the parameter separating means when executing the texture mapping of the partial video signal on a predetermined surface of the three-dimensional object based on the projection plane coordinate information, Rasterizing means for executing a number of times corresponding to the above, generating and outputting a three-dimensional video signal, frame memory means for holding the three-dimensional video signal and outputting an output video signal at a predetermined timing, the output video signal and the video And a video display unit configured to switch and display an input video signal output from the receiving unit.

Thus, a partial image of the input image composed of multiple screens is cut out and pasted as a texture on the surface of the object in the three-dimensional virtual space.
Animation is displayed by moving this 3D object, and when the user presses the select button,
In the three-dimensional virtual space, channel selection is realized by switching to a full screen display of a channel associated with a surface displayed at a position closest to the viewpoint.

According to a sixth aspect of the present invention, there is provided a first input video signal which receives a first input signal transmitted through a broadcast or a network, and comprises a predetermined number of partial images. And a second input video signal for selectively receiving a second input signal transmitted through a broadcast or a network based on channel information and outputting a second input video signal. Input video receiving means; memory means for holding the first input video signal;
A memory control means for writing an input video signal to the memory means, outputting a memory control signal to the memory means in accordance with area cutout information, and reading a partial video signal from the memory means; Information, area cutout information corresponding to a predetermined number of partial videos, indicating a position at which a region used as a texture is cut out from the input video signal, and channel correspondence information indicating correspondence information between an object and a channel. The area cutout information and the three-dimensional information are separated from the parameter information based on a parameter output control signal, and the area cutout information is output to the memory input / output control means. And the channel correspondence information is output to the channel determination means. And stage, from the 3-dimensional information 3
Object position determining means for arranging a three-dimensional object in the three-dimensional virtual space, outputting object coordinate information of the three-dimensional object in the three-dimensional virtual space, and outputting object arrangement order information from the object coordinate information according to a user input; Comparing the position of each object with the object arrangement order information, selecting an object under a predetermined condition, and outputting the selected object information to a channel determining means; and comparing the selected object information with the channel correspondence information. Channel determining means for determining a channel corresponding to the selected object and outputting channel information, and a perspective projection transformation for perspectively projecting the object coordinate information onto a display projection plane and converting the object coordinate information into display projection plane coordinate information. Means for outputting the parameter output control information to the parameter separating means when executing the texture mapping of the partial video signal on a predetermined surface of the three-dimensional object based on the projection plane coordinate information, Rasterizing means for executing a number of times corresponding to the above, generating and outputting a three-dimensional video signal, frame memory means for holding the three-dimensional video signal and outputting a three-dimensional output video signal at a predetermined timing; Enlargement / deformation means for performing an enlargement / deformation process to output a partial image enlargement / deformation signal, and image switching means for switching the three-dimensional output image signal and the partial image enlargement / deformation signal at a predetermined timing to output an output image signal And a video display means for switching and displaying the output video signal and the second input video signal. A.

Thus, when switching to the full-screen display of the selected channel, the partial image used as the texture in the three-dimensional display is enlarged, deformed, and displayed, and then switched to the full-screen display. Video switching.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 shows a block diagram of a video display apparatus according to Embodiment 1 of the present invention.

In the figure, 1201 is an input signal, 1101 is a video receiving means, 1202 is an input video signal, 1103 is a memory input / output control means, 1203 is an input video signal, 1104 is a memory means, 1204 is a memory control signal, and 1205 is a memory control signal. A partial video signal, 1206 is a partial video signal, 1207 is parameter information, 1102 is parameter separating means, 1208 is area cutout information, 1209 is three-dimensional coordinate information, 1
105 is an object position determining means, 1210 is a user input, 1215 is object arrangement order information, 1110 is an object position comparing means, 1216 is selected object information, 1217
Is channel correspondence information, 1111 is channel determination means, 12
18 is channel information, 1211 is object coordinate information, 11
06 is perspective projection conversion means, 1212 is projection plane coordinate information, 1107 is rasterization means, 1214 is parameter output control information, 12
13 is a three-dimensional video signal, 1108 is a frame memory means, 1219
Is an output video signal, 1109 is a video display means, and 1220 is an input video signal.

The operation of the video display apparatus according to the present embodiment configured as described above will be described below.

The video receiving means 1101 receives the input signal 1201 and stores the input video signal 1202 in the memory means 1104 via the memory input / output control means 1103. The initial channel of the input signal 1201 is a multi-screen image composed of a plurality of partial images.

FIG. 2 is a conceptual diagram relating to three-dimensional display in the present embodiment. The upper left part of the figure shows an input video in the case of a 4-split multi-screen. In this embodiment, it is assumed that the rectangle is divided into four equal-sized rectangles.
The number of divisions may be arbitrarily determined whether the division is eight or nine, and it does not have to be the same size.

FIG. 3 is an explanatory diagram relating to information necessary for three-dimensional display in the present embodiment. The left side of the figure shows the vertex coordinates of the cut-out area along the division boundary of each partial video in the 4-split multi-screen. On the right side of the figure, the vertex coordinates for displaying the three-dimensional object, the correspondence between the vertex coordinates, and the coordinates of the segmentation of the partial image, the distance from the viewpoint necessary for the perspective transformation to the display projection plane, and the three-dimensional from the viewpoint The distance to the origin of the virtual space is shown.

The parameter information 1207 includes the coordinates shown in FIG. 3A, the coordinates of the three-dimensional object vertices, and the coordinates of the three-dimensional object vertices shown in FIG.
3 (4), perspective conversion information, and channel correspondence information 1217 corresponding to each surface of the three-dimensional object.
The three-dimensional object vertex coordinates, the correspondence between the three-dimensional object vertex coordinates and the cut-out coordinates (1) in FIG. 3 (3), and the three-dimensional coordinate information 1209 including the perspective transformation information in FIG. 3 (1) is output to the memory input / output control unit 1103 as area extraction information 1208, and the channel correspondence information 1217 is output to the channel determination unit 1111. In addition, regarding the three-dimensional coordinate information 1209, it is possible to realize a three-dimensional animation display by preparing coordinate information whose value changes in response to a time change. In the present embodiment, three-dimensional animation display is assumed, and as an example of three-dimensional animation display, a case where each three-dimensional object surface is arranged so as to draw a circle and rotated will be described. Regarding the three-dimensional animation display, an animation in which each object moves back and forth according to a time change may be used.

FIG. 6 is an explanatory diagram relating to a channel selection method according to the present embodiment. In the case of the figure, an animation is generated by arranging and rotating a three-dimensional object on which a partial video is pasted and in a circular shape.

The object position determining means 1105 determines the position of the three-dimensional object in the three-dimensional virtual space based on the three-dimensional coordinate information 1209,
11 is output to the perspective transformation means 1106. Perspective projection conversion means 11
06 performs perspective projection transformation of the object coordinate information 1211 on the display projection plane, and outputs the object coordinate information 1211 to the rasterizing unit 1107 as projection plane information 1212.

FIG. 2 shows the positional relationship between the viewpoint, the display projection plane, and the three-dimensional object in the three-dimensional virtual space. Note that by performing conversion using an affine transformation unit instead of the perspective projection transformation unit 1106, the perspective projection transformation unit 1106 executes three-dimensional coordinate calculation.
Since the affine transformation means performs the two-dimensional coordinate calculation, the amount of calculation can be reduced.

FIG. 4 is an explanatory diagram showing the difference between the perspective projection transformation and the affine transformation. The left side of the figure is an image serving as a source of texture mapping, and has a lattice pattern for explaining the difference. FIG. 4A shows the case of the perspective projection transformation, in which the width of the lattice is wider toward the front, whereas the case of the affine transformation of FIG. 4B, the width of the lattice is almost uniform.
Therefore, in the case of the perspective projection transformation, the sense of depth can be expressed, but in the case of the perspective projection transformation and the case of the affine transformation, the sense of depth coming from the appearance of the object is retained.

The memory input / output control unit 1103 performs a memory control signal based on the cutout coordinates of the area cutout information 1208.
Output 1204 to the memory means 1104, extract the partial video signal 1205 from the input video 1203 held in the memory means 1104,
The partial image 1206 is output to the rasterizing means 1107.

The rasterizing means 1107 pastes the partial video signal 1206 as a texture corresponding to the coordinates of the projection plane coordinate information 1212. At this time, it is necessary to repeat the processing for the number of partial images constituting the multi-screen, so that the rasterizing means 1107 outputs the parameter output control information 1214 to the parameter separating means 1102. The image generated by the rasterizing unit 1107 by repeating the three-dimensional rendering process in this manner is output to the frame memory unit 1108 as a three-dimensional image signal 1213.

The frame memory means 1108 outputs an output video signal 1219 to the video display means 1109 at a predetermined display timing, and the video is viewed by the video display means 1109. The video displayed at this time is a three-dimensional video which is obtained by separating a partial video signal from an input video signal and pasting it as a texture on a surface of an object in a three-dimensional virtual space.

On the other hand, when a user input 1210 occurs, such as when a select button is pressed, the object position determining means 11
05 outputs the object arrangement order information 1215 to the object position comparing means 1110, compares the positional relationship between the objects, determines the object selected under predetermined conditions, and outputs the selected object information 1216 to the channel determining means 1110.
Output to 10.

In FIG. 6, as described above, the three-dimensional objects corresponding to the four partial images are arranged in a circular shape, rotated, and displayed as a three-dimensional animation. 1 in the figure
The second row shows the input video, the second row shows the three-dimensional object viewed from above, the third row shows the video on the display projection surface, and the fourth row shows the selected video. Time elapses from left to right. When the selection button is pressed at the time of the arrow in the figure, a predetermined judgment criterion, for example, in the case of the criterion for selecting the one closest to the viewpoint and having the largest display area in the figure, The circle 1 indicates that the channel is switched to the channel corresponding to the circle 1 and an image is displayed.

As an example of the criterion for determining the channel selection, FIG. 7 is an explanatory diagram regarding the criterion for selecting the channel in the present embodiment. FIG. 7A shows the first channel selection.
FIG. 7B shows a second criterion for channel selection. FIG. 7A shows a case where the selected channel is determined based on the distance from the viewpoint and the display area, as in the description of FIG. FIG. 7B shows a case where the degree of inclination of the object with respect to the display, that is, the absolute value of the angle formed by the straight line formed by the reference position and the center of the object and the reference axis is determined. In FIG. 7B, PQ is the reference axis, 0 is the center of rotation, A1 is the reference position of circle 1, A2 is the reference position of circle 2, A3 is the reference position of circle 3, and A4 is the reference position of circle 4. . When comparing circles 1 to 4, square A1-OP and square A2-O-
Compare P, angle A3-OP, and angle A4-OP and select the smallest one. In this case, since the angle A1-OP is the smallest, the circle 1 is selected.

The channel determining means 1110 determines the channel corresponding to the selected object information 1216 with reference to the channel correspondence information 1217 output from the parameter separating means 1102, and determines the channel as the channel information 1218.
Output to 1101.

In the video receiving means 1101, the channel information 12
Based on 18, the receiving channel is switched and the input video signal 1220 is output to the video display means 1109.

In the image display means 1109, the input image signal 1220
, The display of the output video signal 1219 is stopped, and the display is switched to the input video signal 1220 for display. In this case, the displayed video is a full screen display of the channel selected by the user. Thus, the selection of the channel and the switching of the viewing video are completed.

As described above, according to the present embodiment, 3
By displaying the 3D animation, it is possible to omit the procedure for selecting the target program by moving the cursor when selecting a program with a remote controller or the like, and even if the number of divisions is increased and the partial video per program is reduced, the 3D animation is displayed. By arranging the object at a position near the viewpoint in the virtual space, it is possible to enlarge and display the image, and it is possible to display an image which is easy to see.

(Embodiment 2) FIG. 8 is a block diagram of a video display apparatus according to Embodiment 2 of the present invention.

In the figure, 1201 is an input signal, 1101 is a video receiving means, 1202 is an input video signal, 1103 is a memory input / output control means, 1203 is an input video signal, 1104 is a memory means, 1204 is a memory control signal, and 1205 is a memory control signal. A partial video signal, 1206 is a partial video signal, 1207 is parameter information, 1102 is parameter separating means, 1208 is area cutout information, 1209 is three-dimensional coordinate information, 1
105 is an object position determining means, 1210 is a user input, 1215 is object arrangement order information, 1110 is an object position comparing means, 1216 is selected object information, 1217
Is channel correspondence information, 1111 is channel determination means, 12
18 is channel information, 1211 is object coordinate information, 11
06 is perspective projection conversion means, 1212 is projection plane coordinate information, 1107 is rasterization means, 1214 is parameter output control information, 12
13 is a three-dimensional video signal, 1108 is a frame memory means, 1219
Is an output video signal, 1109 is an image display means, 1220 is an input video signal, 1301 is an area separation means, 1302 is a video signal for storing in memory, and 1303 is a video signal for storing in memory.

The operation of the video display apparatus according to the present embodiment configured as described above will be described below. The present embodiment has a configuration in which the area separating unit 1301 is added to the first embodiment, and the other parts operate in the same manner as in the first embodiment. Will be described only.

The area separating means 1301 separates an area from the input video signal 1202 based on the area cutout information 1208 output from the parameter separating means 1102, outputs a video signal for memory storage 1302, and It is stored in the memory means 1104 via the means 1103.

Unlike the first embodiment, the memory unit 1104 does not hold the input signal 1202, but holds only the partial video necessary for the texture mapping process of the rasterizing unit 1107.

FIG. 9 is an explanatory diagram relating to the storage of partial video in the present embodiment. The first row in the figure shows an input video, the second row shows a partial video signal to be stored in the memory, the third row shows a three-dimensional object viewed from above, and the third row shows a display. In the image on the projection plane, the fourth row is the selected image, and the time elapses from left to right in the figure. As shown in the figure, when a partial image that does not appear on the display projection plane is included, the memory holding capacity can be reduced.

As described above, according to the present embodiment, when an area is cut out from an image and pasted on a surface of an object in a three-dimensional virtual space, the whole image is not stored in the memory but cut out. The memory amount is reduced by storing only the area that has been set in the memory.

(Embodiment 3) FIG. 10 is a block diagram of a video display apparatus according to Embodiment 3 of the present invention.

In the figure, 1201 is an input signal, 1101 is a video receiving means, 1202 is an input video signal, 1103 is a memory input / output control means, 1203 is an input video signal, 1104 is a memory means, 1204 is a memory control signal, and 1205 is a memory control signal. A partial video signal, 1206 is a partial video signal, 1401 is a parameter generation unit, 1402 is a video analysis unit,
1403 is area number information, 1208 is area cutout information, 1209 is 3
Dimensional coordinate information, 1105 is an object position determining means, 1210
Is user input, 1215 is object arrangement order information, 11
10 is object position comparison means, 1216 is selected object information, 1217 is channel correspondence information, 1111 is channel determination means, 1218 is channel information, 1211 is object coordinate information, 1106 is perspective projection conversion means, 1212 is projection plane coordinate information, 1107 is a rasterizing means, 1214 is parameter output control information, 1213 is a three-dimensional video signal, 1108 is a frame memory means, 1219 is an output video signal, 1109 is a video display means, 12
20 is an input video signal.

The operation of the video display apparatus according to the present embodiment configured as described above will be described below. This embodiment has a configuration in which a parameter generation unit 1401 is added in place of the parameter separation unit 1102 of the first embodiment, and a video analysis unit 1402 is added. In the following, only parts different from the first embodiment will be described. explain.

The video analyzing means 1402 analyzes the input video signal 1202, which is a multi-screen video composed of a plurality of partial videos, input from the video receiving means 1101, measures the number of partial videos, Collection information 1403 and parameter generation means 1401
Output to

The parameter generating means 1401 is used in the first embodiment.
Is different from the parameter separating means 1102 in (3), the three-dimensional coordinate information 1209 and the region cutout information 1208 are
Automatically generated based on

FIG. 11 is an explanatory diagram relating to the generation of three-dimensional information in the third embodiment. FIG. 11A shows the case of two divisions, FIG. 11B shows the case of four divisions, FIG. 11C shows the case of six divisions, and FIG. 11D shows the case of nine divisions. Is an example of a method for arranging a divided input video signal, and the second row shows an automatically generated three-dimensional object. In this case, when an n-divided image is input, n three-dimensional object surfaces to be pasted as textures are prepared and arranged at regular intervals in a circular shape so as to be n-gonal. In the description, they are arranged in a circular shape, but they may be arranged shifted in the depth direction.

As described above, according to the present embodiment, the number of divisions of a video transmitted on a multi-screen is recognized after reception, and shape information of a three-dimensional object is generated according to the number of divisions. Achieves support for multiple types of multi-screen video.

(Embodiment 4) FIG. 12 is a block diagram showing a video display apparatus according to Embodiment 4 of the present invention.

In the figure, 1507 is the input signal 1, 1508 is the video receiving means 1, 1509 is the input video signal 1, 1510 is the input video signal 1, 1501 is the input signal 2, 1502 is the video receiving means 2, 1503 is the input video signal Signals 2 and 1103 are memory input / output control means, 1203 is an input video signal, 1104 is a memory means, 1204 is a memory control signal, 1205 is a partial video signal, 1206 is a partial video signal, 1207 is parameter information, and 1102 is parameter separation means. , 1208 is area cutout information, 1209 is three-dimensional coordinate information, 1105 is object position determination means, 1210 is user input, 1215 is object arrangement order information, 1110 is object position comparison means, 1216 is selected object information, and 1217 is channel correspondence. Information, 1111 is channel determination means, 1218 is channel information, 1211 is object coordinate information, 1106 is perspective projection conversion means, 1212 is projection plane coordinate information, 1107 is rasterization means, 1214 Parameter output control information, 1213 is a three-dimensional video signal, 1108 is a frame memory means, 1511 is an enlarging and deforming means, 1512 is a partial image enlarging and deforming signal, 1504 is a three-dimensional output video signal, 1505 is a video switching means, and 1506 is an output video A signal, 1109 is an image display means, and 1220 is an input image signal.

The operation of the video display apparatus according to the present embodiment configured as described above will be described below. This embodiment is different from the first embodiment in that the video receiving unit 1101 is replaced with the video receiving units 1 and 1508 and the video receiving unit 2 (1502), and the enlargement / deformation unit 1507 and the video switching unit 1505 are connected. The configuration is added, and only the portions different from the first embodiment will be described below.

The video receiving means 1 (1508) receives the input signal 1 (1507), which is a multi-screen video channel composed of a plurality of partial videos, and sends the input video signal 1 (1509) to the memory input / output control means. Output to 1103. This input video is used to generate a three-dimensional display video as in the first embodiment. On the other hand, the video receiving means 2 (1502) receives the input signal 2 (1502) based on the channel information 1218 output from the channel determining means 1110, and
(1503) is output to the video display means 1109. This input video is a full screen display of the selected channel.

The expansion / deformation means 1511 is
The partial video signal 1206 input from 03 is subjected to predetermined video effect processing such as enlargement / deformation, and is output to the video switching unit 1505 as a partial video enlargement / deformation signal 1512.

The video switching unit 1505 switches between the three-dimensional output video signal 1504 input from the frame memory unit 1108 and the partial video expansion / deformation signal 1512, and
06 is output to the video display means 1109.

The image display means 1109 displays an image by selecting from the output image signal 1506 and the input image signal 2 (1503).

In this embodiment, as compared with the first to third embodiments, the enlargement / deformation means 1511 is added, so that a three-dimensional display screen for channel selection and a selected full-screen display can be displayed. The method of switching images has been changed. FIG.
FIG. 3 is an explanatory diagram relating to the video switching method according to the first to third embodiments, and FIG. 14 is an explanatory diagram relating to the video switching method according to the fourth embodiment. In the case of FIG. 13, the displayed video is immediately switched from the three-dimensional display to the circle 1 at the same time as the selection of the circle 1. On the other hand, in FIG. 14, when a channel is selected, a full-screen display of circle 1 is performed after a predetermined time while performing enlargement and deformation processing using a partial image corresponding to the selected channel circle 1. It switches smoothly.

As described above, according to the present embodiment, when switching to the full-screen display of the selected channel, the partial image used as the texture in the three-dimensional display is displayed after being enlarged and deformed. By switching to full screen display, smooth video switching is realized.

[0064]

According to the three-dimensional animation display, it is possible to omit the procedure of selecting a target program by moving a cursor when selecting a program by a remote controller or the like, and to increase the number of divisions and reduce the partial video per program. In such a case, it is possible to enlarge the image by arranging it on the object near the viewpoint in the three-dimensional virtual space, and it is possible to display an image that is easy to see.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a video display device according to a first embodiment of the present invention.

FIG. 2 is a conceptual diagram related to three-dimensional display in the video display device.

FIG. 3 is an explanatory diagram relating to information necessary for three-dimensional display in the video display device.

FIG. 4 is an explanatory diagram regarding a difference between perspective projection transformation and affine transformation.

FIG. 5 is a diagram illustrating a conventional channel selection method using multi-screen display.

FIG. 6 is a diagram illustrating a channel selection method according to the first embodiment of the present invention.

FIG. 7 is a diagram illustrating a criterion for selecting a channel according to the first embodiment.

FIG. 8 is a block diagram showing a configuration of a video display device according to the second embodiment.

FIG. 9 is an explanatory diagram relating to memory retention of a partial video according to the second embodiment.

FIG. 10 is a block diagram showing a configuration of a video display device according to the third embodiment.

FIG. 11 is a diagram illustrating generation of three-dimensional information according to the third embodiment.

FIG. 12 is a block diagram showing a configuration of a video display device according to Embodiment 4.

FIG. 13 is a diagram illustrating a video switching method according to the first to third embodiments.

FIG. 14 is a diagram illustrating a video switching method according to the fourth embodiment.

[Explanation of symbols]

 1101 Image receiving means 1102 Parameter separating means 1103 Memory input / output control means 1104 Memory means 1105 Object position determining means 1106 Perspective projection converting means 1107 Rasterizing means 1108 Frame memory means 1109 Video displaying means 1110 Object position comparing means 1111 Channel determining means 1301 Area separation Means 1401 Parameter generation means 1402 Video analysis means 1502 Video reception means 2 1505 Video switching means 1511 Enlargement and deformation means 1512 Video reception means 1

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5C025 AA23 BA25 BA27 CA09 DA01 DA04 DA05 5C082 AA02 AA14 BA41 BB01 BB15 CA31 CA54 CA56 CA62 MM04 MM09 MM10 5E501 AB06 AC16 AC25 AC33 BA05 EA34 EB05 EB06 EB14 FA15 FA23 FA27

Claims (11)

[Claims] An input video signal receiving unit that receives an input signal transmitted via a broadcast or a network and outputs an input video signal; a memory unit that holds the input video signal; Memory control means for writing to a memory means, outputting a memory control signal to the memory means in accordance with area cutout information, and reading out a partial video signal from the memory means, and cutting out an area to be used as a texture from the three-dimensional information and the input video signal The area cutout information and the three-dimensional information are separated from the parameter information composed of the area cutout information indicating the current position, and the area cutout information is output to the memory input / output control means. Is a parameter separating unit that outputs to the object position determining unit, and a three-dimensional virtual space from the three-dimensional information An object position determining means for arranging a three-dimensional object and outputting object coordinate information of the three-dimensional object in a three-dimensional virtual space; and a perspective for projecting the object coordinate information on a display projection plane and transforming the object coordinate information into display projection plane coordinate information. Projection conversion means, and based on the projection plane coordinate information,
Rasterizing means for generating and outputting a three-dimensional video signal by texture mapping on a predetermined surface of a three-dimensional object; frame memory means for holding the three-dimensional video signal and outputting an output video signal at a predetermined timing; An image display device comprising: an image display means for displaying an image signal. 2. The image display device according to claim 1, wherein the parameter information changes in a time series. 3. The video display device according to claim 1, further comprising an affine transformation unit instead of the perspective projection transformation unit. 4. An input video receiving means for receiving an input signal composed of a predetermined number of partial videos transmitted through a broadcast or a network and outputting the input video signal, and holding the input video signal A memory control unit that writes the input video signal to the memory unit, outputs a memory control signal to the memory unit according to area cutout information, and reads a partial video signal from the memory unit; A parameter output control signal is used based on parameter information composed of corresponding three-dimensional information and area cutout information corresponding to a predetermined number of partial images, which indicates a position at which a region used as a texture is cut out from the input video signal. The area cutout information is separated from the three-dimensional information, and the area cutout information is stored in the memory input / output control. Means for outputting the three-dimensional information to an object position determining means, and arranging the three-dimensional object in the three-dimensional virtual space based on the three-dimensional information, and the object coordinates of the three-dimensional object in the three-dimensional virtual space Object position determination means for outputting information; perspective projection conversion means for perspectively projecting the object coordinate information onto a display projection plane, and converting the object coordinate information into display projection plane coordinate information; and, based on the projection plane coordinate information, the partial video signal. 3
Rasterizing means for outputting parameter output control information to a parameter separating means, executing the number of times corresponding to a predetermined number of partial images, and generating and outputting a three-dimensional video signal when performing texture mapping on a predetermined surface of the three-dimensional object; A video display device comprising: a frame memory unit that holds the three-dimensional video signal and outputs an output video signal at a predetermined timing; and a video display unit that displays the output video signal. 5. The video display device according to claim 4, wherein the parameter information changes in a time series. 6. The image display device according to claim 4, further comprising an affine transformation unit instead of the perspective projection transformation unit. 7. An input video receiving means for receiving an input signal composed of a predetermined number of partial videos transmitted through a broadcast or a network and outputting an input video signal, and extracting an area from the input video signal Area separating means for separating an area according to the information and outputting a video signal for memory storage, a memory means for holding the video signal for memory storage, and writing the video signal for memory storage to the memory means;
A memory control unit that outputs a memory control signal to the memory unit according to the region cutout information and reads out a partial video signal from the memory unit; three-dimensional information corresponding to a predetermined number of partial video images; and a texture from the input video signal Based on a parameter output control signal, the area cutout information and the three-dimensional information are separated from the parameter information composed of area cutout information corresponding to a predetermined number of partial images, indicating a position at which the area is cut out. , The area cutout information is output to the memory input / output control means, the three-dimensional information is output to an object position determination means, a parameter separating means, and a three-dimensional object is arranged in a three-dimensional virtual space based on the three-dimensional information. Object that outputs object coordinate information of a three-dimensional object in a three-dimensional virtual space And preparative position determining means, the object coordinate information perspectively projected on the display projection plane, and perspective projection conversion means for converting the display projection plane coordinate information, based on said projection plane coordinate information, the partial video signal 3
Rasterizing means for outputting parameter output control information to a parameter separating means, executing the number of times corresponding to a predetermined number of partial images, and generating and outputting a three-dimensional video signal when performing texture mapping on a predetermined surface of the three-dimensional object; A video display device comprising: a frame memory unit that holds the three-dimensional video signal and outputs an output video signal at a predetermined timing; and a video display unit that displays the output video signal. 8. An input video receiving means for receiving an input signal composed of a predetermined number of partial videos transmitted through a broadcast or a network and outputting the input video signal, and holding the input video signal A memory control unit that writes the input video signal to the memory unit, outputs a memory control signal to the memory unit in accordance with area cutout information, and reads a partial video signal from the memory unit; Image analysis means for determining the number and outputting area number information, based on the area number information, three-dimensional information, and area cutout information indicating a position when cutting out an area used as a texture from the input video signal. And generating the area information based on the parameter output control signal. A parameter generating means for outputting the three-dimensional information to an object position determining means, and arranging a three-dimensional object in a three-dimensional virtual space based on the three-dimensional information; An object position determining unit that outputs coordinate information; a perspective projection converting unit that perspectively projects the object coordinate information onto a display projection plane and converts the object coordinate information into display projection plane coordinate information; and the partial image based on the projection plane coordinate information. 3 signals
Rasterizing means for outputting parameter output control information to the parameter generating means, executing the number of times corresponding to the predetermined number of partial images, and generating and outputting a three-dimensional video signal when performing texture mapping on a predetermined surface of the three-dimensional object; A video display device comprising: a frame memory unit that holds the three-dimensional video signal and outputs an output video signal at a predetermined timing; and a video display unit that displays the output video signal. 9. An input image receiving means for selectively receiving an input signal composed of a predetermined number of partial images transmitted through a broadcast or a network based on channel information, and outputting an input image signal; A memory means for holding the input video signal; a memory control means for writing the input video signal to the memory means, outputting a memory control signal to the memory means in accordance with area cutout information, and reading a partial video signal from the memory means; 3D information corresponding to a predetermined number of partial images, area cutout information corresponding to a predetermined number of partial images indicating a position at which a region to be used as a texture is cut out from the input video signal, and correspondence between an object and a channel Based on parameter output control signal from parameter information composed of The area cutout information and the three-dimensional information are separated, and the area cutout information is output to the memory input / output control means, the three-dimensional information is output to the object position determination means, and the channel correspondence information is determined by the channel determination. A parameter separating unit that outputs the object coordinates in the three-dimensional virtual space based on the three-dimensional information, and outputs the object coordinate information of the three-dimensional object in the three-dimensional virtual space. An object position determining means for outputting object arrangement order information from the information; an object position for comparing the position of each object with the object arrangement order information, selecting an object under predetermined conditions, and outputting the selected object information to the channel determining means Comparing means, said selecting Channel determining means for determining a channel corresponding to the selected object from the object information and the channel correspondence information, and outputting channel information; and perspectively projecting the object coordinate information onto a display projection surface, and displaying the display projection surface coordinate information. A perspective projection conversion unit that converts the partial video signal into 3 based on the projection plane coordinate information.
Rasterizing means for outputting parameter output control information to a parameter separating means, executing the number of times corresponding to a predetermined number of partial images, and generating and outputting a three-dimensional video signal when performing texture mapping on a predetermined surface of the three-dimensional object; Frame memory means for holding the three-dimensional video signal and outputting an output video signal at a predetermined timing; and video display means for switching and displaying the output video signal and the input video signal output from the video receiving means. And a video display device. 10. The object position determining means,
10. The image display device according to claim 9, wherein a plane closest to the position from the viewpoint is selected. 11. A first input video receiving means for receiving a first input signal transmitted through a broadcast or a network and outputting a first input video signal composed of a predetermined number of partial videos. A second input video receiving means for selectively receiving a second input signal and outputting a second input video signal, the second input video receiving means being configured to selectively receive a second input signal transmitted via a broadcast or a network based on channel information; And a memory for writing the first input video signal to the memory, outputting a memory control signal to the memory according to area cutout information, and reading a partial video signal from the memory. Control means; three-dimensional information corresponding to a predetermined number of partial images; and a predetermined number of partial images indicating a position at which a region to be used as a texture is cut out from the input video signal Based on a parameter output control signal, the area cutout information and the three-dimensional information are separated from parameter information composed of corresponding area cutout information and channel correspondence information indicating correspondence information between an object and a channel, The area cutout information is output to the memory input / output control means, the three-dimensional information is output to the object position determining means, and the channel correspondence information is output to the channel determining means. Object position determining means for arranging a three-dimensional object in a virtual space and outputting object coordinate information of the three-dimensional object in the three-dimensional virtual space, and outputting object arrangement order information from the object coordinate information according to a user input; Object placement order Object position comparing means for comparing the position of each object with the information, selecting an object under predetermined conditions, and outputting the selected object information to the channel determining means, the selected object information and the channel correspondence information, Channel determining means for determining a channel corresponding to an object and outputting channel information; perspective projection transforming means for perspectively projecting the object coordinate information onto a display projection plane and converting the object coordinate information into display projection plane coordinate information; Based on the information, the partial video signal is
Rasterizing means for outputting parameter output control information to a parameter separating means, executing the number of times corresponding to a predetermined number of partial images, and generating and outputting a three-dimensional video signal when performing texture mapping on a predetermined surface of the three-dimensional object; Frame memory means for holding the three-dimensional video signal and outputting a three-dimensional output video signal at a predetermined timing; and enlarging and deforming means for enlarging and deforming the partial video signal and outputting a partial video enlarging and deforming signal. A video switching unit that switches the three-dimensional output video signal and the partial video enlarged / deformed signal at a predetermined timing to output an output video signal; and switches between the output video signal and the second input video signal. An image display device comprising: an image display means for displaying.