CN209748700U - Remote video conference system - Google Patents
Remote video conference system Download PDFInfo
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- CN209748700U CN209748700U CN201721309703.8U CN201721309703U CN209748700U CN 209748700 U CN209748700 U CN 209748700U CN 201721309703 U CN201721309703 U CN 201721309703U CN 209748700 U CN209748700 U CN 209748700U
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Abstract
the utility model relates to a strange land video conference system, which belongs to the technical field of video conference signal transmission, and comprises a first projection screen arranged in a main conference hall, wherein the front part of the first projection screen is provided with a first projector, a laser pen A and a camera B, and the strange land video conference system also comprises a first computer, a first wireless communication module and a second wireless communication module, the first computer is connected with the first projector and the first wireless communication module, and the camera B is connected with the second wireless communication module; the wireless communication system further comprises a second projection screen arranged in the meeting place, a second projector arranged in front of the second projection screen, a third wireless communication module and a second computer, wherein the third wireless communication module and the second projector are used for being in communication connection with the first wireless communication module and the second wireless communication module, and the third wireless communication module and the second projector are connected with the second computer. The problem of in the prior art not be applied to different place video conferencing system with the synchronous display device of laser pen signal is solved.
Description
Technical Field
the utility model belongs to the technical field of the video conference signal transmission, concretely relates to strange land video conferencing system. In particular to a conference system for synchronously displaying projection points of laser pens in two places in a video conference in different places.
Background
The existing video conference equipment in the field can display two signals on a screen, one is file data transmitted through a computer, and the other is dynamic images of participants. In the video conference system, a local camera needs to shoot the whole scene of a conference site, when a reporter uses a laser pen to indicate a technical document on a projection screen, the local participant on the site needs to watch carefully to accurately watch the position indicated by a laser pen signal or the content of a mark, so that for the participants of a video conference in different places which are not on the site, because file data and images of participants of the other party need to be displayed on a screen, an image window on the screen is very small, the laser pen signal position can be watched through the video very difficultly, and particularly under the condition that the pixels of a camera device are not high, the participants of the video conference in different places cannot clearly see the laser pen signal indication position at all;
If the different-place participants see the local laser signal, the local file data image must be displayed on the different-place screen in a full screen manner, but the local file data image cannot be seen due to the restriction of the screen size, and the different-place file data cannot be displayed on the screen.
CN201110410015.1 discloses a different-place interactive meeting platform integrating multiple functions of different-place video meeting, information exchange and display, friend gathering, entertainment and leisure and the like, which comprises a touch interactive platform arranged at each connection point, a video input device, an audio input and output device and a server host, wherein the touch interactive platform is a touch intelligent table and is used for displaying network information and information stored in the computer host and receiving touch operation of a user, and the video and audio input device is used for inputting video and audio information at one side, sending the video and audio information to another connection point through the server host and playing the video and audio. The invention can not only display and play various media as a platform for enterprise information propaganda display and advertisement propaganda, but also perform operation control such as virtual keyboard input, information inquiry, ordering and the like, changes the current situation of single table and chair structure in the existing places, provides a better display platform for enterprises and provides more comprehensive and thorough service for users. CN201110410015.1 is the use of touch technology in off-site video sessions, and does not display the laser pointer signal synchronously in the session.
CN201510047988.1 discloses a laser pen interaction method, which solves the problems of false detection of laser points, large coordinate mapping error and easy misjudgment of interaction commands in the prior art during background switching in a laser pen interaction system. The interaction method comprises a laser point detection method for self-adaptive background switching, a nonlinear coordinate mapping method and a regional interaction method. The method comprises the steps that a moving laser point is detected in a real-time robust mode through an online background dictionary establishing and updating method and a sparse reconstruction method, and the problem of background mutation caused by functions of slide page changing or drawing and the like in the interaction process can be well solved; the coordinate mapping coefficient is trained through a neural network learning model, so that the coordinate mapping precision is improved; the problem that interactive commands are easy to misjudge is solved by a method of dividing the projection screen into drawing interactive areas and controlling the interactive areas. The invention can complete the laser pen interaction function in a robust way in real time, and can be widely applied to multimedia demonstration systems such as conferences, lectures, teaching and the like. CN201510047988.1 solves the problem of error of laser pointer when switching background in local conference, however, this technology can not be used in off-site video conference.
The 11 th publication in 2011, 11 th volume 41 of laser and infrared discloses research and application of a laser pen interactive input system, provides a laser pen interactive input system, which can enable a speaker to interact with a computer at a remote place by using a laser pen, the information obtained on the large screen is synchronously transmitted to a computer through a video acquisition card, the computer obtains the coordinates of a projection point of a laser pen in a picture through an image processing technology, coordinates of the projection point relative to the large screen are obtained through coordinate conversion, and finally functions of drawing lines and labeling screen contents are realized through related functions such as a virtual mouse and Windows API. However, the method is only applied to the interaction between the laser pen and the computer, and only realizes the display of the position of the laser pen signal in the computer, and the synchronous display device of the laser pen signal is not applied to the video conference at different places in the prior art, so that the laser pen signals of both sides of the video conference are synchronously displayed at the opposite end.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving and only having realized the demonstration laser pen signal of accuracy in local computer among the prior art, but not being applied to this laser pen signal synchronous display device and making the problem of this laser pen signal of branch meeting place synchronous display among the video conferencing system.
in order to solve the technical problem, the utility model provides a remote video conference system,
The method comprises the following steps: the first projection screen is arranged in a main meeting place, a first projector used for projecting corresponding documents to the first projection screen, a laser pen A used for projecting laser pen signals to the first projection screen and a camera B used for capturing image information in the first projection screen are arranged in front of the first projection screen, a projection point C formed by the laser pen signals generated by the laser pen A is arranged on the first projection screen, the main meeting place further comprises a first computer used for storing the documents, a second wireless communication module used for sending the image information collected by the camera B and a first wireless communication module used for sending the documents in the first computer, the first computer is connected with the first projector and the first wireless communication module, and the camera B is connected with the second wireless communication module; the remote video conference system further comprises a second projection screen arranged in the meeting place, a second projector arranged in front of the second projection screen, a third wireless communication module used for being in communication connection with the first wireless communication module and the second wireless communication module, and a second computer used for obtaining the coordinate of the projection point C in the first projection screen, wherein the third wireless communication module and the second projector are connected with the second computer.
The main meeting place also comprises a camera B1 for shooting the whole view of the meeting place, and the camera B1 is connected with a first computer.
The camera B is an infrared camera, and a visible light cut-off filter and an infrared filter are arranged on the infrared camera.
The utility model also comprises another video conference system at different places,
The method comprises the following steps: the first projection screen is arranged in a main meeting place, a first projector used for projecting corresponding documents to the first projection screen, a laser pen A used for projecting laser pen signals to the first projection screen and a camera B used for capturing image information in the first projection screen are arranged in front of the first projection screen, a projection point C formed by the laser pen signals generated by the laser pen A is arranged on the first projection screen, the main meeting place further comprises a first computer used for acquiring the coordinates of the laser pen projection point C in the first projection screen and a first wireless communication module used for sending the position coordinates of the projection point C acquired by the first computer, and the first computer is connected with the first projector, the camera B and the first wireless communication module; the remote video conference system further comprises a second projection screen arranged in the meeting place, a second projector arranged in front of the second projection screen, a third wireless communication module used for being in communication connection with the first wireless communication module, and a second computer used for displaying the position of the obtained projection point of the laser pen, wherein the third wireless communication module and the second projector are connected with the second computer.
And a USB signal amplifier is also connected between the camera B and the first computer.
the main meeting place also comprises a camera B1 for shooting the whole view of the meeting place, and the camera B1 is connected with a first computer.
the camera B is an infrared camera, and a visible light cut-off filter and an infrared filter are arranged on the infrared camera.
The utility model relates to a different place video conferencing system, dispose one set of projecting apparatus in video conferencing system main meeting place, catch the camera of laser pen signal, computer and wireless communication module, set up the computer that acquires the positional information of laser pen signal in the branch meeting place, projecting apparatus and projection screen, through the direct laser pen signal transfer who acquires the camera of wireless communication module to branch meeting place, and utilize the computer analysis laser pen signal position of opposite end, and control the projecting apparatus with laser pen signal projection on the projection screen, thereby in the device that synchronous display laser pen signal among the local computer will be realized using different place video conferencing system, the laser pen signal in main meeting place can be seen simultaneously in branch meeting place, make different place participant can exchange the interdynamic in real time, the quality of video conference has been improved.
Drawings
Fig. 1 is a schematic view of a remote video conference system according to a first embodiment of the present invention;
fig. 2 is a schematic view of a remote video conference system according to a second embodiment of the present invention.
Detailed Description
the scheme of the utility model is that: on the basis that the laser pen signal on the synchronous display screen of computer is realized to original laser pen signal and computer interactive system, be applied to different place video conference system with the device of the laser pen signal on the accurate acquisition projection screen of computer, obtain a neotype different place video conference system, specifically, the conference system includes: the system comprises a projection screen, a laser pen, a camera, a computer, a projector and a wireless communication module which are arranged in the local and the meeting places; the laser pen A is used for projecting a laser pen signal on the projection screen and projecting a projection point C of the laser pen signal on the first projection screen, the camera B is arranged in front of the projection screen and used for capturing the laser pen signal on a document in the whole projection screen, the camera B is connected with the second wireless communication module and used for transmitting the captured laser pen signal to a computer in the branch meeting place, the projector is arranged in front of the projection screen and connected with the computer through video equipment and used for displaying the laser pen signal acquired by the computer on the projection screen, the computer in the main meeting place is connected with the computer in the branch meeting place through a wireless network and used for sending the laser pen signal acquired by the local computer to the computer in the branch meeting place, and the computer in the branch meeting place is used for acquiring the projection point position of the laser pen signal on the projection screen.
As another implementation, the computer in the main meeting place can be used to directly obtain the projection point position of the laser pen signal on the projection screen, and then the position information is transmitted to the computer in the branch meeting place through the wireless network, and the computer in the branch meeting place directly controls and displays the laser pen signal.
The present invention will be further explained with reference to the accompanying drawings:
The first embodiment is as follows:
As shown in fig. 1, a first projection screen, a first projector, a first computer, a laser pen a, a camera B, a first wireless communication module and a second wireless communication module are disposed in a main meeting place, and a second projection screen, a second projector, a second computer and a third wireless communication module are disposed in a branch meeting place.
The main meeting place also comprises a first computer storing technical documents, a second wireless communication module for sending the image information collected by the camera B and a first wireless communication module for sending the documents in the first computer, the first computer is connected with the first projector and the first wireless communication module, and the camera B is connected with the second wireless communication module; the remote video conference system comprises a second projection screen arranged in a meeting place, a second projector arranged in front of the second projection screen, a third wireless communication module used for being in communication connection with the first wireless communication module and the second wireless communication module, and a second computer used for obtaining the coordinate of the laser pen projection point C in the first projection screen, wherein the third wireless communication module and the second projector are connected with the second computer.
As shown in fig. 1, the working process of the remote video conference system described in this embodiment is as follows:
The first computer controls the first projector to project corresponding technical documents to the first projection screen, meanwhile, the first wireless communication module is used for communicating with a second computer corresponding to a third wireless communication module in the branch meeting place, synchronization of the technical documents is achieved, a participant (or a host, a speaker and the like) in the main meeting place holds a laser pen A, the laser pen A is used for emitting laser pen signals to indicate content on the projection screen, a laser pen projection point C appears on the first projection screen, at the moment, a camera B can shoot the content on the whole first projection screen, the second wireless communication module is used for sending obtained image information to the second computer in the branch meeting place, the second computer in the branch meeting place obtains position coordinates of the laser pen signals in pictures by using an image processing technology, coordinates of the projection point relative to the projection screen are obtained through coordinate conversion, and then a virtual mouse marker is used, And the Windows API and other related functions realize the marking of the screen content, and then the second computer projects the picture containing the position of the projection point on the second projection screen, so that the effect of synchronously displaying the laser pen signal on the projection screen in the main meeting place on the projection screens in the branch meeting places is realized.
example two:
as shown in fig. 2, the present invention also provides another remote video conference system,
The method comprises the following steps: the main meeting place also comprises a first computer for acquiring the coordinate of the laser pen projection point C in the first projection screen and a first wireless communication module for sending the position coordinate of the laser pen projection point C acquired by the first computer, wherein the first computer is connected with the first projector, the camera B and the first wireless communication module; the remote video conference system further comprises a second projection screen arranged in the meeting place, a second projector arranged in front of the second projection screen, a third wireless communication module used for being in communication connection with the first wireless communication module, and a second computer used for displaying the position of the obtained projection point of the laser pen, wherein the third wireless communication module and the second projector are connected with the second computer.
The working process of the remote video conference system in the embodiment is as follows:
The first computer controls the first projector to project corresponding documents to the first projection screen, meanwhile, the first wireless communication module is used for communicating with a second computer corresponding to a third wireless communication module in the branch meeting place, synchronization of the documents is achieved, a participant (or a host, a speaker and the like) in the main meeting place holds a laser pen A and uses the laser pen A to emit laser pen signals to indicate content on the projection screen, a laser pen projection point C appears on the first projection screen, at the moment, a camera B can shoot the content on the whole first projection screen and directly sends the obtained image information to the first computer in the main meeting place, the first computer obtains position coordinates of the laser pen signals in pictures by using an image processing technology, coordinates of the projection point relative to the projection screen are obtained through coordinate conversion, and then related functions such as a virtual mouse, a Windows API and the like are used for realizing the labeling of the screen content, and then the first computer sends the acquired image information containing the laser pen signal to a second computer in the branch meeting place through a first wireless communication module, and the second computer projects a picture containing the position of the projection point on a second projection screen, so that the position coordinate of the projection point C of the laser pen is directly acquired in the main meeting place through analysis, and then the information is sent to the branch meeting place for synchronous display.
as a further improvement to the second embodiment, after the camera captures the laser pen signal, the signal is further amplified by the USB amplifier, so as to improve the reliability of image processing. When the external environment changes, the captured signal is possibly weak, the signal needs to be further amplified and then processed, and in consideration of the factor, after the camera captures the laser pen signal, the laser pen signal is amplified and then processed, specifically, a USB signal amplifier is connected between the camera and a cable connected with a computer to serve as a relay, and the signal is amplified and then transmitted.
In the above embodiment, the camera B is preferably an infrared camera, and may also be a CCD camera;
In the above embodiment, the camera B is further provided with a visible light cut-off filter and an infrared filter, which can effectively suppress other light rays except infrared light rays and realize accurate capture of a laser pen signal;
In the above embodiment, the main meeting place is further provided with a camera B1 for taking a complete picture of the meeting place, and the camera B1 is connected with the first computer;
in the above embodiment, more than two branch places may be provided;
In addition, if the equipment of the main meeting place is also configured in the branch meeting place, the branch meeting place can also be used as the main meeting place; certainly, the main meeting place can also be configured to be used in a branch meeting place, for example, the first wireless communication module in the main meeting place is configured to be a receiving module, a laser pen, a camera and other devices are arranged in the branch meeting place, the camera in the branch meeting place is used for collecting information on a projection screen, and the third wireless communication module in the branch meeting place is configured to be a sending module, so that the master-slave conversion in the remote meeting system can be realized, and the flexibility of the meeting system can be realized.
the person skilled in the art can also make various improvements to the above system without departing from the scope of the present invention, which still falls within the protection scope of the present invention.
Claims (7)
1. An off-site videoconferencing system, comprising: the first projection screen is arranged in a main meeting place, a first projector used for projecting corresponding documents to the first projection screen, a laser pen A used for projecting laser pen signals to the first projection screen and a camera B used for capturing image information in the first projection screen are arranged in front of the first projection screen, a projection point C formed by the laser pen signals generated by the laser pen A is arranged on the first projection screen, the main meeting place further comprises a first computer used for storing the documents, a second wireless communication module used for sending the image information collected by the camera B and a first wireless communication module used for sending the documents in the first computer, the first computer is connected with the first projector and the first wireless communication module, and the camera B is connected with the second wireless communication module; the remote video conference system further comprises a second projection screen arranged in the meeting place, a second projector arranged in front of the second projection screen, a third wireless communication module used for being in communication connection with the first wireless communication module and the second wireless communication module, and a second computer used for obtaining the coordinate of the projection point C in the first projection screen, wherein the third wireless communication module and the second projector are connected with the second computer.
2. The off-site videoconferencing system of claim 1, wherein the main venue further comprises a camera B1 for taking a complete picture of the venue, wherein the camera B1 is connected to the first computer.
3. The remote video conference system according to claim 1, wherein said camera B is an infrared camera, and said infrared camera is provided with a visible light cut filter and an infrared filter.
4. An off-site videoconferencing system, comprising: the first projection screen is arranged in a main meeting place, a first projector used for projecting corresponding documents to the first projection screen, a laser pen A used for projecting laser pen signals to the first projection screen and a camera B used for capturing image information in the first projection screen are arranged in front of the first projection screen, a projection point C formed by the laser pen signals generated by the laser pen A is arranged on the first projection screen, the main meeting place further comprises a first computer used for acquiring the coordinates of the laser pen projection point C in the first projection screen and a first wireless communication module used for sending the position coordinates of the projection point C acquired by the first computer, and the first computer is connected with the first projector, the camera B and the first wireless communication module; the remote video conference system further comprises a second projection screen arranged in the meeting place, a second projector arranged in front of the second projection screen, a third wireless communication module used for being in communication connection with the first wireless communication module, and a second computer used for displaying the position of the obtained projection point of the laser pen, wherein the third wireless communication module and the second projector are connected with the second computer.
5. the remote video conference system according to claim 4, wherein a USB signal amplifier is further connected between said camera B and the first computer.
6. The off-site videoconferencing system of claim 4, wherein the main conference room further comprises a camera B1 for taking a complete picture of the conference room, wherein the camera B1 is connected to the first computer.
7. The remote video conference system according to claim 4, wherein said camera B is an infrared camera, and said infrared camera is provided with a visible light cut-off filter and an infrared filter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN2016211443987 | 2016-10-20 | ||
| CN201621144398 | 2016-10-20 |
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| CN209748700U true CN209748700U (en) | 2019-12-06 |
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| CN201721309703.8U Active CN209748700U (en) | 2016-10-20 | 2017-09-30 | Remote video conference system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113923066A (en) * | 2021-09-22 | 2022-01-11 | 苏州科天视创信息科技有限公司 | Appointment control method, system and readable storage medium for network conference |
| CN114401416A (en) * | 2022-01-18 | 2022-04-26 | 吉林大学 | Live broadcast bidirectional interaction system in endoscopic surgery and method thereof |
-
2017
- 2017-09-30 CN CN201721309703.8U patent/CN209748700U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113923066A (en) * | 2021-09-22 | 2022-01-11 | 苏州科天视创信息科技有限公司 | Appointment control method, system and readable storage medium for network conference |
| CN114401416A (en) * | 2022-01-18 | 2022-04-26 | 吉林大学 | Live broadcast bidirectional interaction system in endoscopic surgery and method thereof |
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