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CN101783922B - Video conference device and method thereof - Google Patents

Video conference device and method thereof Download PDF

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Publication number
CN101783922B
CN101783922B CN2010101280976A CN201010128097A CN101783922B CN 101783922 B CN101783922 B CN 101783922B CN 2010101280976 A CN2010101280976 A CN 2010101280976A CN 201010128097 A CN201010128097 A CN 201010128097A CN 101783922 B CN101783922 B CN 101783922B
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China
Prior art keywords
image
transmission path
content
processing unit
camera
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Expired - Fee Related
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CN2010101280976A
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Chinese (zh)
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CN101783922A (en
Inventor
郑显文
连树德
陈坤洲
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Aver Information Inc
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Aver Information Inc
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Abstract

The invention discloses a video conference device, which is provided with a path selection unit, so that photographic data captured by a camera selectively enters an image processing unit from a content data transmission path to be output as content data, or enters the image processing unit from the photographic data transmission path to be output as photographic data. A method for conducting a video conference is also disclosed.

Description

Video conference device and method thereof
Technical field
The invention relates to a kind of video conference device, and particularly relevant for a kind of image transmission means of video conference device.
Background technology
Video conference is the meeting room with the two places that are separated by, and goes into equipment and communication network binding via image and voice output, makes the meeting both sides positively to do a kind of system of information exchange, communication rapidly as at same meeting room.Video conference is for reaching the two-way communication ability, and the meeting room both sides all are equipped with equipments such as video camera, display, microphone, loudspeaker, and interconnect via the telecommunication terminal device.
Generally speaking; The image source of video conference device has two kinds; A kind of is to come from the real-time imaging that video camera provides; Another kind is the image data in the computer, and the real-time photographed data of video camera has different paths respectively with data photographed data in the computer, and gets into image process unit.When display frame, can display be cut into a plurality of demonstration blocks, to show respectively from the real-time imaging of video camera and the image data of computer.
But in carrying out video conference, regular meeting runs into following problem, except present members is taken in meeting, also must take some written data sometimes in the meeting, or object such as device in kind, so that the meeting both sides link up.Yet general video conference device is in the same localities and only can sets up a video camera, if frequent between personage and object, switching except the burden that increases operation, can make that more the personnel that watch are uncomfortable.
Summary of the invention
Therefore the object of the invention is providing a kind of video conference device and method thereof exactly, uses so that the image that video camera captures shows as content-data.
Another object of the present invention is to image that same video camera is captured at diverse location, show as dynamic menu and tableaux respectively.
Another purpose of the present invention is to avoid video camera between diverse location, to switch times without number and causes the uncomfortable situation of personnel of watching.
According to one embodiment of the invention; A kind of video conference device has been proposed, comprise photographed data transmission path, be connected the content-data transmission path of content-data receiving element and image process unit and be arranged at the photographed data receiving element in order to the photographed data receiving element that receives photographed data, content-data receiving element, image process unit, connection photographed data receiving element and image process unit and content-data receiving element and image process unit between path selection unit.See through path selection unit and make photographed data optionally by content-data transmission path entering image process unit and as content-data output, or by exporting as photographed data among the photographed data transmission path entering image process unit.
Path selection unit comprises transmission line, and transmission line is for connecting photographed data transmission path and content-data transmission path.Also include video camera in the video conference device, video camera is connected with the photographed data receiving element.Also include microcontroller in the video conference device, with the coordinate of the shooting direction of control video camera, the transmission path of selecting photographed data and storage camera position.Video conference device also includes control assembly, and control assembly and microcontroller electrically connect.Also include the image compression unit and the image decompression unit that are connected with image process unit in the video conference device.Also include network processing unit in the video conference device, network processing unit is connected with image compression unit and image decompression unit.
Another embodiment of the present invention is a kind of method of carrying out video conference, comprises first image of video camera acquisition primary importance, and first image gets into image process unit by the photographed data transmission path; Then, rotate video camera to the second place, to capture second image; Then; The courses of action selected cell makes second image get into image process unit by the content-data transmission path, then; Compressing first image and be video streaming and compressing second image is the content crossfire, and transmits video streaming and content crossfire.
Carry out also being included in the method for video conference and rotate video camera to the second place, first picture of the photographed data that fixes transmission path output.The step of wherein rotating video camera to the second place comprises and controls assembly.Video camera can be set to periodically and between the primary importance and the second place, move, and to capture first image and second image respectively, the step of wherein rotating video camera to the second place comprises the coordinate of recording camera in the second place.Carry out also being included in the method for video conference transmit the content crossfire after, video camera is rotated back primary importance, continue acquisition first image, wherein also comprise the courses of action selected cell, make the continuation of first image by image transmission path entering image process unit.First image and second image can be presented in the same display frame.First image in the display frame is a dynamic image.Second image in the display frame is a static image.
Video conference device of the present invention can video camera is taken photographed data via the content-data transmission path on display as static content-data output.In addition, video camera can be exported as dynamic by the photographed data transmission path respectively in the captured photographed data of diverse location, or exports as static state via the content-data transmission path, and both can be simultaneously displayed in the same display frame.
Description of drawings
For letting above and other objects of the present invention, characteristic, advantage and the embodiment can be more obviously understandable, the detailed description of appended accompanying drawing be following:
Fig. 1 is the calcspar that illustrates video conference device first embodiment of the present invention;
Fig. 2 A and Fig. 2 B be illustrate application drawing 1 video conference device 100 an embodiment the enforcement sketch map and output picture;
Fig. 3 illustrates the flow chart that preestablishes the second place in the method for carrying out video conference of the present invention;
Fig. 4 illustrates the flow chart that carries out method first embodiment of video conference of the present invention;
Fig. 5 illustrates the flow chart that carries out method second embodiment of video conference of the present invention;
Fig. 6 illustrates the flow chart that carries out method the 3rd embodiment of video conference of the present invention;
[primary clustering symbol description]
100: video conference device 150: the photographed data transmission path
102: video camera 160: the content-data transmission path
104: content-data source 170: the image compression unit
106: microcontroller 180: the image decompression unit
108: control assembly 190: network processing unit
110: photographed data receiving element 200: the output picture
120: content-data receiving element 210: primary importance
130: path selection unit 220: the second place
132: 230: the first pictures of transmission line
140: 240: the second pictures of image process unit
145: display processing unit 310~520: step
146: display
Embodiment
Below will clearly demonstrate spirit of the present invention with accompanying drawing and detailed description; Has common knowledge the knowledgeable under any in the technical field after understanding preferred embodiment of the present invention; When can be by the technology of teachings of the present invention, change and modification, it does not break away from spirit of the present invention and scope.
With reference to Fig. 1, it is the calcspar that illustrates video conference device first embodiment of the present invention.Video conference device 100 include video camera 102 (camera), content (content) data source 104, the photographed data receiving element 110 that is connected with video camera 102, the content-data receiving element 120 that is connected with content-data source 104, image process unit 140 and be arranged at photographed data receiving element 110 and content-data receiving element 120, and image process unit 140 between path selection unit 130.
Video camera 102 can be the PTZ video camera, and in order to capture the photographed data of captured position, 110 of photographed data receiving elements are in order to the reception photographed data, and the photographed data that receives is carried out pre-process.Video camera 102 can in build or be external in video conference device 100 and use, promptly video camera 102 can in be built in the main frame of video conference device 100, or be external in the main frame of video conference device 100.104 in content-data source can be devices such as mobile computer, computer, projector, and the content-data that provides in content-data source 104 for being sent to content-data receiving element 120, carries out pre-process like transparency bulletin etc.Photographed data and content-data that pre-process is accomplished are sent in the image process unit 140 via path selection unit 130 again.
Video conference device 100 also includes microcontroller 106, with rotation by microcontroller 106 control video cameras 102, and the shooting direction of decision video camera 102, the coordinate of the camera site of storage video camera 102, and the transmission path of selecting photographed data.Video conference device 100 also includes the control assembly that electrically connects with microcontroller 106; Like remote controller 108; The signal of remote controller 108 is operated for being sent to microcontroller 106, perhaps, and also can be through button as control assembly operation video conference device 100.
Video conference device 100 includes photographed data transmission path 150 and content-data transmission path 160.More include image compression unit 170, image decompression unit 180 in the video conference device 100, reach network processing unit 190.Via the photographed data after photographed data receiving element 110 pre-process, can directly get into image process unit 140 via photographed data transmission path 150.Then, photographed data gets into image compression units 170 via photographed data transmission path 150 again, with photographed data be compressed into H.261, H.263, H.264, video or image compliant compressions such as MPEG2, MPEG4.Video streaming after the compression (stream) is for transmitting network processing unit 190, with transmission and the reception of carrying out the network terminal package.After the video streaming after the video conference device 100 of the other end receives compression, see through image decompression unit 180 again the video streaming decompress(ion) of receiving is condensed to photographed data, photographed data is sent into image process unit 140 again.
Likewise, via the content-data after content-data receiving element 120 pre-process, can directly get into image process unit 140 via content-data transmission path 160.Then, content-data gets into image compression units 170 via content-data transmission path 160 again, with photographed data be compressed into H.261, H.263, H.264, video or image compliant compressions such as MPEG2, MPEG4, JPEG.Content crossfire after the compression is for transmitting network processing unit 190, with transmission and the reception of carrying out the network terminal package.After the content crossfire after the video conference device 100 of the other end receives compression, see through image decompression unit 180 again the content crossfire decompression of receiving is content-data, content-data is sent into image process unit 140 again.
In addition, the captured photographed data of video camera 102 also can get into content-data transmission path 160 through path selection unit 130 in the present embodiment, with as among the content-data entering image process unit 140 and carry out subsequent treatment.Wherein path selection unit 130 includes transmission line 132, and transmission line 132 connects photographed data transmission path 150 and content-data transmission path 160.
The user is courses of action selected cell 130 when needed, makes the photographed data of video camera 102 acquisitions optionally get into photographed data transmission path 150 or content-data transmission path 160.
Image process unit 140 can carry out convergent-divergent (scale up or scaledown) processing with photographed data and/or content-data; And display mode as requested; Like setting meanss such as single display, multiple demonstration, multi-screen demonstrations photographed data and/or content-data are integrated into display frame; And display frame to display processing unit 145 is provided, export single display device 146 or plural display 146 to by display processing unit 145 again.
The video conference device 100 of present embodiment; Be used as content-data output under the image real time record in kind that can 102 in video camera be captured; Make and in meeting, can present speaker and two kinds of pictures in kind simultaneously; And need not image in kind is made into projection newspaper cutting in advance, also avoid video camera 102 between two places, to switch continually and cause the user uncomfortable.
With reference to Fig. 2 A and Fig. 2 B, its be illustrate application drawing 1 video conference device 100 an embodiment the enforcement sketch map and output picture.Among Fig. 2 A, video camera 102 is in order to take the picture of the primary importance 210 and the second place 220, and wherein primary importance 210 is the position that the speaker stood, and the second place 220 is the decorating position of blank.Video camera 102 can be sent to image process unit 140 via content-data transmission path 160 with it and carry out subsequent treatment after the image of the acquisition second place 220, and the image of the second place 220 is regarded as content-data output, shown in Fig. 2 B.
Among Fig. 2 B, output picture 200 includes first picture 230 of primary importance 210 and second picture 240 of the second place 220.Wherein first picture 230 is real-time imaging (live-video) picture; The image of first picture 230 can transmit the speaker's of primary importance 210 picture in real time; Second picture 240 then is the image that continues to show the second place 220 that captures before, occurs until next one action.In other words, first picture 230 can be considered the dynamic image that shows primary importance 210, and second picture 240 then can be considered the static image that shows the second place 220.The image source of first picture 230 and second picture 240 is all from video camera 102.
In other embodiment, the second place 220 is not limited to the decorating position of blank, and the second place 220 also can be the placement location of the object of desire displaying, the Hard copy placement location that desire is discussed etc.In other embodiment, first picture 230 and second picture 240 more can show on different displays respectively.
With reference to Fig. 3, it is to illustrate the flow chart that preestablishes the second place in the method for carrying out video conference of the present invention.As previously mentioned, owing to video camera need move between the primary importance and the second place, therefore; Before carrying out video conference, need comprise and carry out step 310, by user's manual operation control assembly; The control video camera turns to the second place that desire is taken; Then, step 320 is for pressing the button on the control assembly, with the coordinate record of video camera among microcontroller.Wherein, step 310 also comprises the camera head that furthers/zoom out, the position of being desired to be adjusted to, and in step 320 record.With reference to Fig. 4, it is to illustrate the flow chart that carries out method first embodiment of video conference of the present invention.In the step 410; First image of video camera acquisition primary importance; Whether detecting receives the switching signal of being sent by control assembly to step 420 by microcontroller; If the switching signal of receiving, then step 430 turns to the second place for the microprocessor controls video camera, with second image of the acquisition second place.Then, step 440 is the microprocessor controls path selection unit, and second image that makes video camera provide gets into image process unit by the content-data transmission path.Step 450 is the content crossfire for compression second image, and then, step 460 is to transmit the content crossfire via network.Step 470 controls assembly for the user; Make the microprocessor controls path selection unit; The picture that makes video camera provide gets into the photographed data transmission path, and is last, in the step 480; Microcontroller operation video camera is got back to primary importance, and video camera gets into the photographed data transmission path and normal output at first image that primary importance captures.
In the step 410, video camera is to be sent to long-range video conference device output via the photographed data transmission path at first image of primary importance acquisition.Switching signal in the step 420 can come from the control assembly of near-end (sending end) or the control assembly of long-range (receiving terminal), and control assembly can be remote controller or button.The user can control assembly, to provide switching signal to microcontroller.
In the step 430; After receiving the switching signal that control assembly sends; Call out out the video camera that in Fig. 3, stores in advance coordinate in the second place by microcontroller; So that video camera is turned to the second place, and the functions such as the function that furthers/zoom out, camera lens rotational angle of carrying out video camera, and then second picture of selected institute desire acquisition.
In the step 480 first image is got into the photographed data transmission path and normal transmission, comprising compression first image is video streaming, and sees through this video streaming of Network Transmission.
First image that video camera captures in primary importance is the video conference device that is sent to the other end via the photographed data transmission path; To export as dynamic image frame; And second image that video camera captures in the second place; Then be the video conference device that is sent to the other end via the content-data transmission path, to export as static content picture.
With reference to Fig. 5; It is to illustrate the flow chart that carries out method second embodiment of video conference of the present invention, in the present embodiment, after step 420 receives the switching signal that control assembly sends; Also comprising step 422 fixes and desires to deliver to the first long-range picture; The output picture of the photographed data that promptly fixes transmission path, when step 480 video camera was got back to primary importance, first image that video camera captures in primary importance got into the photographed data transmission path and till by long-range receiving again.Wherein step 422 only fixes and desires to deliver to first picture of long-range output, for the still normally transmission of transmission of sound.
With reference to Fig. 6, it is to illustrate the flow chart that carries out method the 3rd embodiment of video conference of the present invention.In the present embodiment, also can preestablish video camera and periodically take the primary importance at speaker place and the second place at place in kind in turn, need not the user control assembly, can upgrade the image of the second place after the preset time in process.
Step 510 is first image of video camera acquisition primary importance; Then; Step 520 is after through the preset time, fixes and desires to deliver to first picture of long-range output, then; Step 530 is controlled video camera automatically for microcontroller and is turned to the predefined second place, second image of the acquisition second place.In the step 540, the microprocessor controls path selection unit, second image that makes video camera provide gets into image process unit by the content-data transmission path.Step 550 is the content crossfire for compression second image, and then, step 560 is to transmit the content crossfire via network.Step 570 is controlled path selection unit automatically for microcontroller; The picture that video camera is provided gets into the photographed data transmission path; In the step 580; Microcontroller is operated video camera automatically and is got back to primary importance, and video camera gets into the photographed data transmission path and normal output at first image that primary importance captures.
Wherein step 520 only video camera move during fix and desire to deliver to first picture of long-range output; The output picture of the photographed data that promptly fixes transmission path; Get back to primary importance until video camera, and the acquisition first image via the photographed data transmission path till.Only fix in the step 520 and desire to deliver to first picture of long-range output, the sound during this is normal transmission still.
First image that video camera captures in primary importance is the video conference device that is sent to the other end via the photographed data transmission path; To export as dynamic image frame; And second image that video camera captures in the second place; Then be the video conference device that is sent to the other end via the content-data transmission path, to export as static content picture.In the process that video camera moves, fix and desire to deliver to first picture of long-range output, cause the user uncomfortable to avoid frequent rotation video camera.
Can know by the invention described above preferred embodiment, use the present invention and have advantage.Video conference device of the present invention can video camera is taken photographed data via the content-data transmission path on display as static content-data output.In addition, video camera can be exported as dynamic by the photographed data transmission path respectively in the captured photographed data of diverse location, or exports as static state via the content-data transmission path, and both can be simultaneously displayed in the same display frame.
Though the present invention discloses as above with embodiment; Right its is not in order to limiting the present invention, anyly is familiar with this technological personnel, do not breaking away from the spirit and scope of the present invention; When can doing various changes and retouching, so protection scope of the present invention is as the criterion when looking the scope that claims define.

Claims (8)

1.一种视频会议装置,其特征在于,包含:1. A video conferencing device, characterized in that, comprising: 一摄影机,用以撷取一摄影数据;a video camera, used to capture a photographic data; 一摄影数据接收单元,用以接收该摄影数据;a photographic data receiving unit, configured to receive the photographic data; 一内容数据接收单元,用以自一内容数据源接收一内容数据;a content data receiving unit, used for receiving a content data from a content data source; 一影像处理单元;an image processing unit; 一摄影数据传输路径,连接该摄影数据接收单元与该影像处理单元;a photographic data transmission path, connecting the photographic data receiving unit and the image processing unit; 一内容数据传输路径,连接该内容数据接收单元与该影像处理单元;a content data transmission path, connecting the content data receiving unit and the image processing unit; 一路径选择单元,连接该摄影数据接收单元与该内容数据接收单元,使得该摄影数据选择式地由该内容数据传输路径进入该影像处理单元而作为该内容数据输出,或是该摄影数据由该摄影数据传输路径进入该影像处理单元之后,该影像处理单元将该摄影数据及该内容数据整合为一显示画面;以及a path selection unit, connecting the photographic data receiving unit and the content data receiving unit, so that the photographic data selectively enters the image processing unit from the content data transmission path and is output as the content data, or the photographic data is sent from the After the photographic data transmission path enters the image processing unit, the image processing unit integrates the photographic data and the content data into a display screen; and 一显示器处理单元,该显示画面传送至该显示器处理单元后,输出至一或多个显示器显示。A display processing unit, after the display picture is sent to the display processing unit, it is output to one or more displays for display. 2.根据权利要求1所述的视频会议装置,其特征在于,该路径选择单元包含一传输线路,连接该摄影数据传输路径与该内容数据传输路径。2. The video conferencing device according to claim 1, wherein the path selection unit comprises a transmission line connecting the photographic data transmission path and the content data transmission path. 3.根据权利要求1所述的视频会议装置,其特征在于,该摄影机内建或是外接于该视频会议装置,该摄影机与该摄影数据接收单元连接。3 . The video conferencing device according to claim 1 , wherein the camera is built in or connected externally to the video conferencing device, and the camera is connected to the photography data receiving unit. 4 . 4.根据权利要求3所述的视频会议装置,其特征在于,还包含一微控制器,以控制该摄影机的拍摄方向、选择该摄影数据的传输路径及储存该摄影机的一位置的一坐标。4. The video conferencing device according to claim 3, further comprising a microcontroller to control the shooting direction of the camera, select the transmission path of the shooting data and store a coordinate of a position of the camera. 5.一种进行视频会议的方法,其特征在于,包含:5. A method for video conferencing, characterized in that it comprises: 一摄影机撷取一第一位置的一第一影像,该第一影像由一摄影数据传输路径进入一影像处理单元;A camera captures a first image at a first position, and the first image enters an image processing unit through a photographic data transmission path; 转动该摄影机至一第二位置,撷取一第二影像;rotate the camera to a second position, and capture a second image; 操作一路径选择单元,使该第二影像由一内容数据传输路径进入该影像处理单元;operating a path selection unit, so that the second image enters the image processing unit from a content data transmission path; 压缩该第一影像为一影像串流;compressing the first image into an image stream; 压缩该第二影像为一内容串流;compressing the second image into a content stream; 传送该影像串流与该内容串流;transmitting the video stream and the content stream; 将该摄影机转动回该第一位置,继续撷取该第一影像;以及rotating the camera back to the first position to continue capturing the first image; and 操作该路径选择单元,使该第一影像继续由该摄影数据传输路径进入该影像处理单元,该影像处理单元整合该第一影像与该第二影像,使该第一影像与该第二影像在同一显示画面显示。Operate the path selection unit so that the first image continues to enter the image processing unit through the photographic data transmission path, and the image processing unit integrates the first image and the second image so that the first image and the second image are The same display screen is displayed. 6.根据权利要求5所述的进行视频会议的方法,其特征在于,还包含在转动该摄影机至该第二位置前,定格该摄影数据传输路径输出的一第一画面。6 . The method for conducting a video conference according to claim 5 , further comprising freezing a first frame output by the photographic data transmission path before rotating the camera to the second position. 7 . 7.根据权利要求5所述的进行视频会议的方法,其特征在于,该摄影机设定为周期性地在该第一位置与该第二位置之间移动,以分别撷取该第一影像及该第二影像。7. The method for conducting a video conference according to claim 5, wherein the camera is set to periodically move between the first position and the second position to capture the first image and the second position respectively. the second image. 8.根据权利要求5所述的进行视频会议的方法,其特征在于,该显示画面中的该第一影像为动态影像,该显示画面中的该第二影像为静态影像。8. The method for conducting a video conference according to claim 5, wherein the first image in the display screen is a dynamic image, and the second image in the display screen is a static image.
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