CN100388782C - Stationary graphic and text realizing method - Google Patents
Stationary graphic and text realizing method Download PDFInfo
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- CN100388782C CN100388782C CNB2003101038385A CN200310103838A CN100388782C CN 100388782 C CN100388782 C CN 100388782C CN B2003101038385 A CNB2003101038385 A CN B2003101038385A CN 200310103838 A CN200310103838 A CN 200310103838A CN 100388782 C CN100388782 C CN 100388782C
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Abstract
The present invention relates to a method for realizing stationary pictures and texts, which is applied to a conference television system. The method comprises the following steps: switching the input video source of a conference television host to a stationary picture and text capturing source; starting a driving device of the stationary picture and text capturing source to emit a picture and text capturing command in a certain time to carry out picture and text capture; sending the picture and the text to a remote conference television terminal after encoding. The method of the present invention can make users reduce operation during the realizing process of the stationary pictures and texts in the conference television, and simultaneously, the practicability of the whole conference television system is improved.
Description
Technical field
The present invention relates to the multimedia communication technology field, finger is applied to a kind of static picture and text implementation method in the TV conference system especially.
Background technology
In existing TV conference system, the general step of the implementation method of static picture and text is: the user is at first with the input source of picture and text video camera as video conference terminal; The user catches the static picture and text of a frame by remote controller key then; Then image is caught from the picture and text video camera and is sent to distance terminal after encoding according to H261 appendix D mode in the back, and then finishes the transmission in TV conference system of static picture and text.
Though such scheme can be realized static picture and text, still has following shortcoming: when the user has changed film, do not use a teleswitch to initiate to catch and operate the film content that far-end then can not be seen renewal, as seen, at this moment need the user to interfere, automaticity is not high, and efficient is lower.
Summary of the invention
The invention provides a kind of static picture and text implementation method, to solve the not high problem of automaticity that exists in the prior art.
For this reason, the invention provides following technical scheme:
A kind of static picture and text implementation method, this method comprises the following steps:
A1) the input video source of meeting TV main frame is switched to static picture and text and catch the source;
A2) start static picture and text and catch driver, regularly send static picture and text capture command, obtain static picture and text from the described static picture and text source of catching, and encode in the double vision mode with the live image in motion video source or the code stream multiplex mode sends to distant place video conference terminal.
According to said method of the present invention,, then finish static picture and text realization flow if the video conferencing main frame is received one " stopping to catch automatically " order.
According to said method of the present invention, if switching to the nonstatic picture and text, the input video source of video conferencing main frame catches the source, then finish static picture and text realization flow.
According to said method of the present invention, the described static picture and text source of catching is the picture and text video camera, by the picture and text video camera static picture and text is inputed to the video conferencing main frame.
The invention provides another kind of static picture and text implementation method, be applied to TV conference system, this method comprises the following steps:
B1) the static picture and text of input are given the video conferencing main frame;
B2) acquisition mode of the static picture and text of selection: manually catch or catch automatically; If select manually to catch, then execution in step B3; If select to catch automatically, then execution in step B4;
B3) wait for that the user sends static picture and text capture command to main frame, whenever receive a capture command, catch the static picture and text of a frame, send to distant place video conference terminal behind the coding;
B4) start static picture and text and catch driver, regularly send static picture and text capture command, carry out sending to distant place video conference terminal after picture and text are caught, encoded.
In the said method, it is to catch button and realize by pressing static picture and text on the video conferencing main engine remote control device that described user sends static picture and text capture command to main frame.
Described step B1 comprises: one or more input videos source of meeting TV main frame is connected with the picture and text video camera, by the picture and text video camera static picture and text is inputed to the video conferencing main frame.
Described step B2 comprises: the acquisition mode options button is being set on the user interface of video conferencing main frame or the acquisition mode switch key is set on the main engine remote control device.
According to said method of the present invention, send to distant place video conference terminal after another road live image video source signal of described static picture and text of catching and host side is encoded in the mode of double vision, video conference terminal demonstrates the combination image of static picture and text and live image in the distance.
According to said method of the present invention, another road live image video source signal of described static picture and text of catching and host side sends to distant place video conference terminal in the code stream multiplex mode, demonstrates static picture and text and live image respectively in two of video conference terminal output equipments in the distance.
The inventive method can make the user reduce operation in the implementation procedure of the static picture and text of video conferencing, has also promoted the practicality of whole TV conference system simultaneously.
Description of drawings
Fig. 1 is the applied TV conference system schematic diagram of the inventive method.
Fig. 2 is the inventive method flow chart.
Embodiment
The implementation of the static picture and text of the present invention is divided into two kinds, and a kind of is automated manner, and another kind is a manual mode.Switching between automated manner and the manual mode can by be provided with on the user interface of video conference terminal switch soft key or use a teleswitch on certain shortcut switch.
Referring to Fig. 1, be the applied TV conference system schematic diagram of the inventive method; Fig. 2 is the inventive method flow chart, and as shown in Figure 2, the inventive method can be selected to catch driver and realize catching automatically by starting static picture and text, or sends capture command by the user, finishes once static picture and text processing procedure.
The realization principle of static picture and text manual mode is the same with the principle of prior art, it all is the mode that adopts the user to interfere, be that catching all of the static picture and text of each frame initiated by touching remote controller key by the user, the user whenever catches the static picture and text of a frame all needs to do once-through operation.Static picture and text can adopt the mode of composite bit stream to send to distance terminal simultaneously separately or with one road live image.
The automatic implementation of static picture and text is as follows:
The user is connected to the input video source of video conferencing main frame with a picture and text video camera, by this picture and text video camera static picture and text are input to the video conferencing main frame after, need not the each button of user and drive, system catches static picture and text from the picture and text video camera automatically and sends far-end.When using this mode, system needs a built-in driver that can regularly send static picture and text capture command, this kind driver can be realized by software programming, also can add hardware mode by software realizes, for the person of ordinary skill of the art, realize that this kind driver belongs to a routine techniques, so this paper is not described in detail its concrete realization program; In order to express easily, below it is referred to as static picture and text catches driver, in case the input video source of terminal has switched to this picture and text video camera, static picture and text are caught driver and are promptly started working, and regularly initiate the once capture command of static picture and text.Static picture and text are caught the capture frequency (promptly catch the static picture and text of a frame after blanking time) of driver can be according to the user's request setting, the form of image can be CIF, 4CIF or in the mode of H261 appendix D, no matter using any form prerequisite is to guarantee enough definition.
After main frame receives that one " stopping to catch automatically " orders or switch to the nonstatic picture and text and catch the source, stop automatic acquisition procedure.Should " stopping to catch automatically " order can be by realizing in that the control button is set on the user interface of host side or on the remote controller.
The send mode of static picture and text comprises:
A. only send static picture and text from the picture and text video camera to distance terminal, remote subscriber can only be watched static picture and text under this kind mode.
B. the video source of picture and text video camera one tunnel and other one tunnel video source can be sent to distance terminal in the mode (" double vision " is picture-in-picture) of double vision; Remote subscriber can be seen the combination image of static picture and text and live image under this kind mode.
C. will send to distance terminal in the mode of two-way code stream (" two-way code stream " i.e. be " code stream multiplex mode ") from the picture and text of picture and text video camera and other one road live image.Remote subscriber is complete in two output equipments under this kind mode sees live image and several static picture and text.These two output equipments can be video conferencing display device commonly used and comprise TV and VGA display.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (10)
1. a static picture and text implementation method is applied to TV conference system, and this method comprises the following steps:
A1) the input video source of meeting TV main frame is switched to static picture and text and catch the source;
A2) catch driver by static picture and text and regularly send static picture and text capture command, obtain static picture and text from the described static picture and text source of catching, and encode in the double vision mode with the live image in motion video source or the code stream multiplex mode sends to distant place video conference terminal.
2. static picture and text implementation method as claimed in claim 1 is characterized in that: if the video conferencing main frame is received " stopping to catch automatically " order, then finish static picture and text realization flow.
3. static picture and text implementation method as claimed in claim 1 is characterized in that: catch the source if the input video source of video conferencing main frame switches to the nonstatic picture and text, then finish static picture and text realization flow.
4. as claim 1,2 or 3 described static picture and text implementation methods, it is characterized in that: the described static picture and text source of catching is the picture and text video camera, by the picture and text video camera static picture and text is inputed to the video conferencing main frame.
5. a static picture and text implementation method is applied to TV conference system, and this method comprises the following steps:
B1) the static picture and text of input are given the video conferencing main frame;
B2) acquisition mode of the static picture and text of selection: manually catch or catch automatically; If select manually to catch, then execution in step B3; If select to catch automatically, then execution in step B4;
B3) wait for that the user sends static picture and text capture command to main frame, whenever receive a capture command, catch the static picture and text of a frame, send to distant place video conference terminal behind the coding;
B4) catch driver by static picture and text and regularly send static picture and text capture command, carry out sending to distant place video conference terminal after picture and text are caught, encoded.
6. static picture and text implementation method as claimed in claim 5 is characterized in that: it is to catch button and realize by pressing static picture and text on the video conferencing main engine remote control device that described user sends static picture and text capture command to main frame.
7. static picture and text implementation method as claimed in claim 5, it is characterized in that: described step B1 comprises: one or more input videos source of meeting TV main frame is connected with the picture and text video camera, by the picture and text video camera static picture and text is inputed to the video conferencing main frame.
8. as claim 5,6 or 7 described static picture and text implementation methods, it is characterized in that: described step B2 comprises: the acquisition mode options button is being set on the user interface of video conferencing main frame or the acquisition mode switch key is set on the main engine remote control device.
9. static picture and text implementation method as claimed in claim 8, it is characterized in that: send to distant place video conference terminal after another road live image video source signal of described static picture and text of catching and host side is encoded in the mode of double vision, video conference terminal demonstrates the combination image of static picture and text and live image in the distance.
10. static picture and text implementation method as claimed in claim 8, it is characterized in that: another road live image video source signal of described static picture and text of catching and host side sends to distant place video conference terminal in the code stream multiplex mode, demonstrates static picture and text and live image respectively in two of video conference terminal output equipments in the distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101038385A CN100388782C (en) | 2003-11-12 | 2003-11-12 | Stationary graphic and text realizing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101038385A CN100388782C (en) | 2003-11-12 | 2003-11-12 | Stationary graphic and text realizing method |
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| CN1617582A CN1617582A (en) | 2005-05-18 |
| CN100388782C true CN100388782C (en) | 2008-05-14 |
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| CNB2003101038385A Expired - Fee Related CN100388782C (en) | 2003-11-12 | 2003-11-12 | Stationary graphic and text realizing method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101867765A (en) * | 2010-04-30 | 2010-10-20 | 杭州华三通信技术有限公司 | Data transmission method and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0746557A (en) * | 1993-05-26 | 1995-02-14 | Hitachi Ltd | Video signal transmission/reception system |
| CN1243383A (en) * | 1998-07-10 | 2000-02-02 | 松下电器产业株式会社 | Picture-taking and transmission system |
| CN1290107A (en) * | 1999-12-18 | 2001-04-04 | 深圳市中兴通讯股份有限公司 | Method for implementing picture-in-picture mode at remote end |
| CN1433222A (en) * | 2002-01-08 | 2003-07-30 | 华为技术有限公司 | Multiple-picture display method in video conference system |
| CN1450807A (en) * | 2002-04-09 | 2003-10-22 | 华为技术有限公司 | Double-vision transmission system for television conference terminal |
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2003
- 2003-11-12 CN CNB2003101038385A patent/CN100388782C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0746557A (en) * | 1993-05-26 | 1995-02-14 | Hitachi Ltd | Video signal transmission/reception system |
| CN1243383A (en) * | 1998-07-10 | 2000-02-02 | 松下电器产业株式会社 | Picture-taking and transmission system |
| CN1290107A (en) * | 1999-12-18 | 2001-04-04 | 深圳市中兴通讯股份有限公司 | Method for implementing picture-in-picture mode at remote end |
| CN1433222A (en) * | 2002-01-08 | 2003-07-30 | 华为技术有限公司 | Multiple-picture display method in video conference system |
| CN1450807A (en) * | 2002-04-09 | 2003-10-22 | 华为技术有限公司 | Double-vision transmission system for television conference terminal |
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| CN1617582A (en) | 2005-05-18 |
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Effective date of registration: 20170929 Address after: 063000 Hebei province Tangshan City Fengrun District Shaliuhe town of Ge Jia Tun Cun Fu 312 southeast district Patentee after: Wang Guanfu Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: Huawei Technologies Co., Ltd. |
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