KR920002836B1 - Multi-window image processing apparatus and method - Google Patents

Abstract

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Description

Multi-window image processing apparatus and method

1 is a conventional circuit diagram.

2 is a circuit diagram of the present invention.

3 is a diagram of a multi-window screen.

4 is a flow chart of operation according to the present invention.

* Explanation of symbols for main parts of the drawings

10: CPU 20: control unit

30: clock generator 40: address generator

50: video camera 60: A / D converter

70-73: 1-4 memory 80: D / A converter

90: monitor 100-109: 1-10 buffer

110-113: 1-4 multiplexer

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus, and more particularly, to a multi-window type image processing apparatus and method capable of displaying a plurality of child screens on one mother screen.

In general, a multi-window method such as a video tape recorder (hereinafter referred to as a VTR) or a television receiver, such as a multi-window or a picture in picture, is configured as shown in FIG. 1 and operates as follows. It was. That is, the input video signal is converted into a digital signal by an analog / digital converter (hereinafter referred to as an A / D converter) 60 and stored in the memory 74, and then the stored digital type video signal is converted into a digital / analog converter (hereinafter referred to as “A / D converter”). The D / A converter (80) converts the data back into an analog form. The video signal converted into the analog form is input to the switching circuit 200, and is then displayed on the monitor 90 in combination with other video signals input to the switching circuit 200.

However, although the multi-window image processing apparatus is capable of a still image and a still image or a combination of a fluid image and a fluid image, the still image is stored due to the processing time of storing the image signal in a memory and processing the displayed image signal on a monitor. There was a drawback in that it was impossible to combine a fluid picture or a fluid picture and a still picture with a parent picture and a child picture.

Accordingly, it is an object of the present invention to provide a multi-window image processing apparatus and method capable of synthesizing a video signal of a moving picture and a still picture of a moving picture and a mother picture or a mother picture and a child picture.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. 2 is a circuit diagram of the present invention, which generates a plurality of control signals and addresses and controls a system by controlling a system (hereinafter referred to as a CPU) 10 and control signals of the central processing unit 10. A control unit 20 for controlling the portion, a clock generator 30 for generating a clock pulse sequence of a predetermined frequency for generating an address, and an address for generating a second to fifth address as an output pulse sequence of the clock generator 30. A video camera 50 which generates an analog composite video signal by capturing an image of the generator 40 and a subject, and digitally converts the analog composite video signal of the video camera 50 into a first composite video signal The first composite image signal of the A / D converter 60 and the A / D converter 60 under the control of the controller 20 through the first buffer 100 controlled by the controller 20. Input is stored and controlled by the control unit 20 A first memory 70 for transmitting to the CPU 10 through a second buffer 101 and second composite image data generated by processing the first composite image signal by a predetermined digital image in the CPU 10. A second memory 71 configured to input and store the third screen via the third buffer 102 controlled by the controller 20 and a fourth buffer controlled by the controller 920 to control the second composite image data; Input and store the first composite image data of the first composite image data in the second region through the fifth buffer 104 controlled by the controller 20 and store at least one or more The third memory 72 constituting the own screen and the second composite image data are input and stored in the first area through the sixth buffer 105 controlled by the controller 20 and the first composite image data. The seventh buffer 106 controlled by the controller 20 for the excellent composite image data A fourth memory 73 configured to store at least one sub-screen by storing the input in the second area and a first address or the address generator generated from the CPU 10 under the control of the controller 20; A first multiplexer 110 which selects a second address of 40 and transmits it to the first memory 70, and a first address or the first address generated from the CPU 10 under the control of the controller 20; A second multiplexer 111 which selects a third address of the address generator 40 and transmits it to the second memory 71; and the second generated from the CPU 10 under the control of the controller 20; Third and fourth multiplexers 112 and 113 for selecting one address or the third address or the fourth address of the address generator 40 and transmitting the same to the third or fourth memories 72 and 73 and the controller 20. Through the eighth-tenth buffers 107-109 controlled by the control unit 20 under the control of A D / A converter 80 for inputting the outputs of the second to fourth memories 71-73 and converting them into analog signals, and a monitor 90 for displaying the outputs of the D / A converters 80 on the screen; 3 is a multi-window screen displayed by FIG. 1, and FIG. 4 is an operation flowchart of FIG.

The present invention will be described in detail based on the above configuration.

First, the multi-window screen configuration diagram of FIG. 3 is described. In FIG. 3, A is a parent screen and a first still image implemented by the second memory 71, and B is a first child screen. A first still image or a second still image implemented at the top of the 72,73, and C is a second image, which is a flow image implemented at the bottom of the third and fourth memories 72,73.

In FIG. 2, the first composite image data provided to the first memory 70 is illustrated as only the fluid image data by the video camera 50 for convenience, but the first image data source of the still image data source is transmitted from the outside. The composite image data is also input and stored to the CPU 10. In addition, the controller 20 inputs the control bus of the CPU 10 to the description of the present invention briefly and clearly, so that the first to fourth multiplexers 110 to 113 and the first to fourth memories 70 to 73 are used. In this case, the first to tenth buffers 100 to 109, the A / D and the D / A converters 60 and 80 are controlled. In the following description, the description of the controller 20 will be omitted.

Referring to FIG. 2 and FIG. 4, the multi-window image processing operation will be described in detail.

When displaying a still image on the portion A of the bottom of FIG. 3, the A / D converter 60 inputs the analog composite video signal by photographing a driving subject using the video camera 50 to generate an analog composite video signal. The digital data is converted into first composite image data and transmitted to the first memory 70 through the first buffer 100. In this case, the first memory 70 stores the first composite image data of the A / D converter 60 at the address designated by the second address of the address generator 40 which is selectively transmitted by the first multiplexer 110. Store and store the first composite image data stored at the address designated by the first address by the first address of the CPU 10, which is selectively transmitted by the first multiplexer 110, and then the second buffer 101. When the CPU 10 transmits the data to the CPU 10 through the third buffer 102, the CPU 10 generates the second composite image data to form a first still image by processing the first composite image data. Transfer to second memory 71.

In this case, the second memory 71 stores the second composite image data of the CPU 10 at the address designated by the first address of the CPU 10 selected and transmitted by the second multiplexer 111 to the mother screen. After configuring the first still image to be displayed, if the third address of the address generator 40 is selected and transmitted by the second multiplexer 111 again, the mother screen stored at the address designated by the third address is configured. The second composite image data is read and transmitted to the D / A converter 80 through the eighth buffer 107. The D / A converter 80 for inputting the second composite image data of the second memory 71 through the eighth buffer 107 converts the second composite image data into an analog signal form. A video signal is generated and output to the monitor 90. In FIG. 3, the mother screen serving as the first still image is implemented on the monitor 90 corresponding to part A of FIG.

Next, two types of screens can be implemented in the part indicated by B in FIG. 3, one of which is to perform digital image processing on the CPU 10 and display the digital image processed image. One is to display the moisturizing as it is taken by the video camera 50.

First, an operation for implementing a still image (the digital image processing performed by the CPU 10) such as the first still image implemented in part A of FIG. 3 will be described in part B of FIG. The CPU 10 simultaneously transmits the second composite image data, which is the first still image signal, to be stored in the second memory 71 to the third and fourth memories 72 and 73 through the fourth and sixth buffers 103 and 105. When applied, the third and fourth memories 72 and 73 may be located at the address corresponding to the first address of the CPU 10 selectively transmitted by the third and fourth multiplexers 112 and 113. The second composite image data is stored in the upper portion of the memory, respectively, to form a magnetic screen that is the first still image, and then the fourth address of the address generator 40 is selected by the third and fourth multiplexers 112 and 113. When transmitted, the second composite image data, which is the sub picture stored at the address designated by the fourth address, is read and transmitted to the D / A converter 80 through the ninth and tenth buffers 108 and 109, respectively. In this case, the D / A converter 80 converts the second analog composite image signal in the form of an analog signal when any of the second composite image data of the third and fourth memories 72 and 73 is input to the monitor 90. ) And displays the first still image in the portion B shown in FIG.

Secondly, the operation of displaying the moving image captured by the video camera 50 as a still image in part B of FIG. 3 is described. The analog composite video signal generated by capturing a subject from the video camera 50 is A. FIG. The / D converter 60 converts the first composite image data in the form of digital data into the third and fourth memories 72 and 73 through the fifth and sixth buffers 104 and 105, respectively. In this case, the third and fourth memories 72 and 73 place the composite image data on the address corresponding to the fifth address of the address generator 40 selectively transmitted by the third and fourth multiplexers 112 and 113. The second screen is stored in the second screen, and the second and fourth multiplexers 112 and 113 select the fourth address of the address generator 40 to select the fourth and fourth memories 72 and 72. 73), the third and fourth memories 72 and 73 are configured to display a second still screen of the composite image data (hereinafter referred to as first composite image data) stored at the address designated by the fourth address. The composite image data stored in the fourth memories 72 and 73, referred to as third composite image data, are transmitted to the D / A converter 80 through the ninth and tenth buffers 108 and 109, respectively.

Then, the D / A converter 80 receives the third composite image data of the third memory 72 through the ninth buffer 108 or the fourth memory 73 through the tenth buffer 109. When the third composite image data is inputted, the third composite image data is converted into a third analog composite image signal in the form of an analog signal and output to the monitor 90 so that the CPU 10 processes the portion B of FIG. 3. The second still image before the display is displayed.

Next, an operation of displaying a fluid image in part C of FIG. 3 will be described. When the video camera 50 photographs a subject and generates an analog composite image signal, the A / D converter 60 converts the analog composite image signal into first composite image data and separates the radix composite image data and the excellent composite image data. do. First, the even composite image data is transmitted to the third memory 72 through the fifth buffer 104, and then the odd composite image data is transmitted to the fourth memory 73 through the sixth buffer 105. Then, the third memory 72 stores the superior composite image data at the lower part at the address corresponding to the fifth address of the address generator 40 selectively transmitted by the third multiplexer 112, and stores the superior composite image data at the upper part. When a fourth image of the address generator 40 is selected and transmitted by the third multiplexer 112, the second image is composed of a second image which is different from the one still image or the second still image. The fourth address reads the second composite image data, which is the first still image stored in the upper part, or the third composite image data, which is the second still image, and the excellent composite image data, which is stored in the lower part, through the ninth buffer 108. The D / A converter 80 transmits the data.

In this case, the D / A converter 80 converts the excellent composite image data, the second composite image data, or the third composite image data into a first superior analog composite video signal, a second analog composite video signal, or a third analog composite video signal. By converting and outputting to the monitor 90, the first still image or the second still image is displayed on the B portion of the monitor 90 as shown in FIG. 3, and the fluid image is displayed on the C portion.

On the other hand, the fourth memory 73 for inputting the odd-numbered composite image data has the lower portion of the fourth memory 73 according to the address corresponding to the fifth address of the address generator 40 selectively transmitted by the fourth multiplexer 113. The radix composite image data is stored in a portion, and the fluid image is transferred to a second sub-screen different from the first sub-picture formed by the first or second still image stored in the upper portion of the fourth memory 73 as described above. After the fourth address of the address generator 40 is selected and transmitted by the fourth multiplexer 113, the second composite image data which is the first still image stored in the upper portion to the fourth address or the fourth address is selected and transmitted. The third composite image data as the second still image and the radix composite image data as the fluid image stored below are read and transmitted to the D / A converter 80 through the tenth buffer 190. In this case, the D / A converter 80 converts the second composite image data, the third composite image data, and the radix composite image data into a second analog composite image signal, a third analog composite image signal, and a first radix analog composite image signal. By converting and outputting it to the monitor 90, the first still image or the second still image is displayed on part B of FIG. 3 and the fluid image is displayed on part C. The fluid image is an excellent composite image of the third memory 72. The data and the radix composite image data of the fourth memory 73 are alternately applied to maintain the data.

The second or third composite image data, which is the first child screen of the fourth memory 73, and the radix composite image, which is the second child screen, together with the second composite image data of the second memory 71, which is the mother screen, described above. After the data is displayed on the monitor 90, the second or third composite image data and the first child screen of the third memory 72 together with the second composite image data of the second memory 71 are displayed. By alternately repeating the operation of displaying the excellent composite image data, which is a two-character screen, on the monitor 90, as shown in FIG. 3, the screens of A, B, and C can be realized, and as shown in FIG. The fluidized image can be implemented simultaneously with the still image as shown in FIG.

The first composite image data is odd and even composite image data which is a fluid image of a second child screen stored under the third and fourth memories 72 and 73, and the second composite image data is generated by the CPU 10. One composite image data is processed and refers to the first still image stored in the mother screen by the second memory 71 or the upper portions of the third and fourth memories 72 and 73, and the third composite image data is the third image. And an image before being processed by the CPU 10 as a second still image that is a first child screen stored in the upper portions of the fourth memories 72 and 73. On the other hand, the first address is generated by the CPU 10 and is used by the CPU 10 to access the first-fourth memories 70-73, and the second address is the first composite in the first memory 70. The address is for designating the address when recording and storing the image data, the third address is for designating the address for reading the second composite image data stored in the second memory 71, and the fourth address is the third and fourth. The address is for designating a address for reading the composite image data stored in the memories 72 and 73, and the fifth address stores the excellent composite image data in the third memory 72 and writes to the fourth memory 73. It is to designate address to save composite image data.

As described above, the present invention provides the advantage of displaying a fluid image together with the first and second still images, and digitally image-processing the contents stored in the memory so that the user can reproduce and view the result of the image processing as desired. It can save and read each memory at the same time by separating and operating multiple address buses and data buses, and can prevent abnormalities caused by collisions of various data. The advantage is that you can display yourself or your opponent on screen B and your fluid image on screen C at the same time.

Claims (2)

An image processing apparatus having a video camera 50 and a monitor 90, comprising: a central processing unit 10 for generating a plurality of control signals and addresses to control a system, and a control signal of the central processing unit 10; A control unit 20 for controlling each part of the furnace system, a clock generator 30 for generating a clock pulse sequence of a predetermined frequency for generating an address, and a second to fifth address in the output pulse sequence of the clock generator 30. An address generator 40 for generating a signal, an A / D converter 60 for quantizing the analog composite video signal of the video camera 50 to a first composite video signal, and the control unit 20. Under control, the first composite video signal of the A / D converter 60 is inputted and stored through the first buffer 100 controlled by the controller 20 and the second buffer controlled by the controller 20 ( First memory 70 for transmitting to the CPU 10 through 101, and the CPU ( A second memory configured to input and store second composite image data generated by processing the first composite image signal by a predetermined digital image through a third buffer 102 controlled by the controller 20; 71 and the second composite image data are input and stored in a first region through a fourth buffer 103 controlled by the controller 20, and the radix composite image data of the first composite image data is stored in the controller ( A third memory 72 configured to input and store at least one magnetic screen by storing the inputs in a second area through the fifth buffer 104 controlled by 20) and the second composite image data to the controller 20; Inputted and stored in the first region through the sixth buffer 105 controlled by the second region through the seventh buffer 106 controlled by the control unit 20 and the excellent composite image data of the first composite image data Save at least one subscreen by typing in Under the control of the fourth memory 73 and the control unit 20, a first address generated from the CPU 10 or a second address of the address generator 40 is selected and the first memory ( 70 to select the first address generated from the CPU 10 or the third address of the address generator 40 under the control of the first multiplexer 110 and the control unit 20. A second address or fourth address of the first address or the address generator 40 generated from the CPU 10 under the control of the second multiplexer 111 transmitted to the memory 71 and the controller 20; Third and fourth multiplexers 112 and 113 for selecting an address and transmitting the same to the third or fourth memories 72 and 73, and an eighth to tenth controlled by the controller 20 under the control of the controller 20. Inputs the outputs of the second-fourth memories 71-73 through the buffers 107-109 to convert them into analog signals to Multi-window image processing apparatus, characterized in that consisting of a D / A converter (80) for transmitting to the monitor (90). An image processing method comprising a first-fourth memory 70-73 and processing an analog composite video signal generated by photographing a subject with a video camera 50 and displaying the analog composite video signal on a screen. Generating a first composite image data quantized by using the first memory image; and storing the first memory 70; and converting the first composite image data into a second composite image data type representing a first still image. A second process of constructing a mother screen by storing in the second memory 71; and generating a third composite image data representing a second still image as the first composite image data to store sub-screen data. A first child screen is constructed by storing the second composite image data of the first still image in a first area of the fourth memory 73 constituting the child screen in a first area of the memory 72. The third process, The first composite image data is separated into the excellent composite image data for the excellent screen and the radix composite image data for the radix screen, and the excellent composite image data is stored in the second area of the third memory 72 and the radix is stored. The composite image data is stored in a second area of the fourth memory 73 to form a second child screen which is a fluid image, a mother screen that is the first still image, and a first or second still image. A multi-window image processing method comprising a fifth process of converting each composite image data of a first child screen and a second child screen, which is a fluid image, into an analog form and simultaneously displaying a still image and a fluid image on one screen. .

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