KR100525249B1 - Remote video conferrence system - Google Patents

Abstract

The present invention provides a variety of conditions relating to the shooting position, focus, brightness, etc. of each camera in photographing a subject using a plurality of cameras, while selecting one of the conditions to be photographed and recorded. A video lecture and conferencing system having a tracking control function that can configure a dynamic screen by allowing recorded video and audio signals to be played back.

A switch selector for removing and outputting a noise signal included in a camera selection signal input as a wired or wireless signal by a user (a lecture participant or a meeting participant), and a microphone input by a user (a lecture participant or a meeting participant) The microphone selector which removes and outputs the noise signal included in the selection signal, converts the signals input from the switch selector and the microphone selector into digital signals and controls the camera and microphone devices according to the intention of the operator. Camera tracking system that controls ID and camera's location, focus, brightness, background, contour, etc. to control shooting and recording of camera with the selected ID under selected condition and user (subject) To display the camera and the number of the camera being photographed A number indicator, an audio input unit for recording the voice and sound of the user (subject), an image input unit for inputting the video signal of the user (subject) input from the camera, a video and audio input from the image input unit and the audio input unit An AV selection system for reproducing a signal, a monitor for outputting the reproduced video signal as an image, and a speaker for outputting the reproduced audio signal as voice and sound.

Description

Video lecture and conference system with tracking control {Remote video conferrence system}

TECHNICAL FIELD The present invention relates to the field of video lecture and conferencing system, and more specifically, to photographing a subject using a plurality of cameras, one of the conditions is provided while providing various conditions regarding the shooting position, focus, and brightness of each camera. The present invention relates to a video lecture and conferencing system having a tracking control function that can be configured to make a dynamic screen by selecting and allowing recording and recording to be performed and reproducing video and audio signals recorded and recorded as described above.

Video conferencing system is a system that allows people who are far apart from each other to conduct meetings through video and sound reflected on their own TV screens. It is a high-tech product with great economic advantages such as saving and time saving.

The videoconferencing system has a difficulty in feeling that the participants in the conference are far from each other, so that the video and audio (sound) can be effectively produced so that the participants can have a sense of presence. Particular attention should be paid to the equipment and equipment for this purpose. To this end, the conference room is equipped with various equipment such as an expensive television receiver, a speaker, a camera, a microphone, a facsimile, and an electronic blackboard.

In the United States and Japan, such a videoconferencing system is widely used. In Korea, by installing a video conferencing system connecting the Sejong-ro government office and the Gwacheon government office in September 1984, the information and communication system was put into practical use, which included two 50-inch large screens, two TV cameras, It is decorated with materials such as video codecs that convert audio and video into digital signals, and 24 telephone lines are used.

In 1990, a series of standards were recommended by the ITU-T (Telecommunication Standardization Sector).

Recently, products that realize video conferencing functions on personal computers have emerged, and a function of sharing data created on a personal computer and working on it has been added. The data sharing function includes a whiteboard function for displaying an electronic bulletin board on both monitor screens, a function for sharing the same application software, and the like. As the Internet develops, video conferencing systems using the Internet also appear.

The video conferencing system may also be used as a video lecture system.

However, such a conventional image lecture and conference system does not provide a dynamic screen because the shooting position, focus, brightness, etc. of each camera are always fixed in the same way when photographing a subject using a plurality of cameras. There is this.

SUMMARY OF THE INVENTION An object of the present invention is to solve the conventional problems as described above. In photographing a subject using a plurality of cameras, one of them is provided while variously providing conditions relating to the shooting position, focus, and brightness of each camera. The present invention provides a video lecture and conference system with a tracking control function to select a condition to allow recording and recording to be performed, and to generate a dynamic screen by reproducing the captured video and audio signals. .

As a means for achieving the above object, the configuration of the present invention, the switch selector for removing the noise signal contained in the camera selection signal input as a wired signal or a wireless signal by the user (lecture attendee or conference attendee) And a microphone selector which removes and outputs a noise signal included in a microphone select signal input by a user (a lecture attendant or a meeting attendee), and the signals input from the switch selector and the microphone selector as digital signals. By converting and controlling the camera according to the intention of the operator, it analyzes the IDs of the camera and microphone devices, and analyzes the information such as the camera's position, focus, brightness, background, and contour, so that the camera having the ID can be taken and recorded under selected conditions. Camera tracking system to control the shooting, shooting the user (subject) A camera, a number indicator for displaying the number of the camera being photographed, an audio input unit for recording the voice and sound of the user (subject), and an image for inputting a video signal of the user (subject) input from the camera An input unit, an AV selection system for reproducing video and audio signals input from an image input unit and an audio input unit, a monitor for outputting the reproduced video signal as an image, and a speaker for outputting the reproduced audio signal as audio and sound It is made, including.

The configuration of the camera tracking system, the input unit that serves as the intermediate between the user and the system by transmitting signals input from the switch selector and the microphone selector to the interface unit, and all the devices constituting the system acting as an intermediate between the entire system And an interface unit for transmitting a control command to the camera, and a camera control unit for transmitting the operation command selected by the user and the operator to the camera and the number indicator and controlling other operations related to the camera.

The input unit of the camera tracking system includes an individual switch unit for receiving a physical switch input signal and converting the data into data required for the system, and performing data decoding and encoding to perform a desired operation by the user and the system. It includes a central processing unit for connecting and an operator control panel for allowing the operator to make a direct connection.

The interface unit of the camera tracking system includes a data storage unit for storing ID information of camera and microphone devices corresponding to signals input from the input unit, and a center for physically connecting the input unit and the camera control unit. It comprises a processing unit, and a communication unit for exchanging commands with the camera control unit.

The configuration of the camera control unit of the camera tracking system includes a data storage unit that stores information such as the position, focus, brightness, background, and contour of the camera, and the command transmitted from the interface unit in accordance with the contents corresponding to the camera. The central processing unit for operating the camera by connecting the communication unit after the conversion, the communication unit serving to send and receive commands with the camera, and the position, focus, brightness, background, It includes a camera environment data input unit for changing the information, such as the contour.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings in order to describe in detail enough to enable those skilled in the art to easily carry out the present invention. . Other objects, features, and operational advantages, including the object, operation, and effect of the present invention will become more apparent from the description of the preferred embodiment.

For reference, the embodiments disclosed herein are only presented by selecting the most preferred embodiment in order to help those skilled in the art from the various possible examples, the technical spirit of the present invention is not necessarily limited or limited only by this embodiment Rather, various changes, additions, and changes are possible within the scope without departing from the spirit of the present invention, as well as other equivalent embodiments.

1 is a block diagram of an image lecture and conference system with a tracking control function according to an embodiment of the present invention. As shown in FIG. 1, the configuration of an image lecture and conference system having a tracking control function according to an embodiment of the present invention includes a camera input as a wired signal or a wireless signal by a user (lecture participant or conference participant). A switch selector 10 for removing and outputting a noise signal included in a selection signal, and a microphone selector for removing and outputting a noise signal included in a microphone selection signal input by a user (lecture attendee or conference attendee). 20, and converts the signals input from the switch selector 10 and the microphone selector 20 into a digital signal to analyze the ID of the camera and microphone devices while controlling according to the intention of the operator and the position of the camera Analyzes information such as focus, brightness, background, outline, etc. The camera tracking system 30 for controlling the camera, the camera 40 for photographing the user (subject), the number indicator 50 for displaying the number of the camera being photographed, the voice of the user (subject) and An audio input unit 60 for recording sound, an image input unit 70 for inputting a video signal of a user (subject) input from a camera, and a video and audio signal input from an image input unit and an audio input unit And an AV selection system 80, a monitor 90 for outputting the reproduced video signal as an image, and a speaker 100 for outputting the reproduced audio signal as voice and sound.

2 is a block diagram of a camera tracking system of a video lecture and conference system having a tracking control function according to an embodiment of the present invention. As shown in FIG. 2, the configuration of the camera tracking system 30 of the video lecture and conferencing system having the tracking control function according to the exemplary embodiment of the present invention includes a switch selector 10 and a microphone selector 20. ) Converts the analog signal input from the digital signal into a digital signal and transmits control commands to the input unit 31 which transmits the ASCII code to the interface unit 32 and serves as an intermediate part of the entire system, and all devices constituting the system. And a camera controller 33 which transmits an operation command selected by a user and an operator to a camera and a number indicator, and controls other operations related to a camera. Corresponds to the camera 40, and as the number of cameras increases, the second camera control unit 34 and the third camera control unit 35 may be expanded to correspond thereto. .

3 is a block diagram illustrating an input unit of a camera tracking system of an image lecture and conference system having a tracking control function according to an exemplary embodiment of the present invention. As shown in FIG. 3, the configuration of the input unit 31 of the camera tracking system 30 of the video lecture and conference system having a tracking control function according to an embodiment of the present invention receives a physical switch input signal. The individual switch converter 311 converts and outputs the digital ASCII data required for the system, the central processing unit 312 which connects the user to the system by performing data decoding and encoding to perform a desired operation by the operator, and the operator directly. It comprises an operator control panel 313 to enable the connection. The central processing unit 312 is preferably used 8051.

4 is a block diagram of an interface unit of a camera tracking system of a video lecture and conference system having a tracking control function according to an embodiment of the present invention. As shown in FIG. 4, the configuration of the interface unit 32 of the camera tracking system 30 of the video lecture and conference system with the tracking control function according to an embodiment of the present invention is the input unit 31 described above. Data storage unit 321 for storing the ID information of the camera and microphone devices corresponding to the signals input from the system, and the input unit 31 and the first to third camera controllers 33 to 35 of the system It comprises a central processing unit 322 to be connected to, and the communication unit 323 serves to send and receive commands with the camera control unit 33 to 35.

5 is a block diagram of a camera controller of a camera tracking system of an image lecture and conference system with a tracking control function according to an embodiment of the present invention. As shown in FIG. 5, the camera control unit 33 of the camera tracking system 30 of the video lecture and conference system with the tracking control function according to an embodiment of the present invention is the camera 40 described above. The data storage unit 331 stores information such as the position, the focus, the brightness, the background, the contour, and the communication unit 333 after converting the command transmitted from the interface unit 32 into contents corresponding to the camera 40. The central processing unit 332 for operating the camera 40 by connecting the communication unit 333, a communication unit 333 serving to exchange commands with the camera 40, and an operator stored in the data storage unit 331. It includes a camera environment data input unit 334 to change the information, such as the position, focus, brightness, background, contour of the camera 40 is made.

With the above configuration, the operation of the video lecture and conferencing system with the tracking control function and its control method according to the embodiment of the present invention is as follows.

A user (a lecture participant or a meeting participant) generates a camera selection signal (contact signal) and a microphone selection signal (contact signal) from a button installed around his / her seat, which is then switched as a wired signal or a wireless signal. Input to the microphone selector 20. The camera selection signal (contact signal) or the microphone selection signal (contact signal) may function as a signal for requesting camera recording and microphone recording for the user (lecture participant or conference participant) to speak. And the microphone selection unit 20 remove the noise signal included in the camera selection signal and the microphone selection signal and input the same to the camera tracking system 30. The camera tracking system 30 is a user (lecture attendee or When a signal for requesting camera recording and microphone recording is input to speak from a meeting participant), the camera reads information such as the location, focus, brightness, background, and contour that are most suited to the user's location. (40) plays a role, which will be described in detail as follows.

The input unit 31 of the camera tracking system 30 converts an analog signal input from the switch selector 10 and the microphone selector 20 into a digital signal and transmits it to the interface unit 32 as an arc code. do.

As shown in FIG. 3, the input unit 31 of the camera tracking system 30 includes an individual switch converting unit 311, a central processing unit 312, and an operator control panel 313. The individual switch conversion unit 311 receives the physical switch contact input signal and converts it into digital ASCII data required for the system, and outputs it. The central processing unit 312 performs data decoding and encoding to perform a desired operation by the user. The system is connected and the operator control panel 313 allows the operator to make a direct connection.

That is, the central processing unit 312 of the input unit 31 of the camera tracking system 30, according to the control command input from the operator control panel 313, the signal input through the individual switch conversion unit 311 immediately interface unit The signal input through the individual switch conversion unit 311 is controlled to be transmitted to the interface unit 32 only when the control unit 313 or the permission command of the operator control panel 313 is transmitted. Therefore, the operator can install the operator control panel 313 in the central control room, and can control the signal input through the switch selector 10 and the microphone selector 20 from the user in the field according to the intention of the operator. have.

The interface unit 32 of the camera tracking system 30 serves as an intermediate part of the entire system, and transmits control commands to all devices constituting the system including the first to third camera controllers 33 to 35.

As illustrated in FIG. 4, the interface unit 32 of the camera tracking system 30 includes a data storage unit 321, a central processing unit 322, and a communication unit 313. 321 stores ID information of camera and microphone devices corresponding to signals input from the input unit 31, and the central processing unit 322 may include an input unit 31 of the system and first to third camera controllers ( 33 to 35 are physically connected, and the communication unit 323 exchanges commands with the camera control units 33 to 35.

That is, the central processing unit 322 of the interface unit 32 of the camera tracking system 30 reads ID information of camera and microphone devices corresponding to a signal input from the input unit 31 from the data storage unit 321 to communicate with the communication unit. The control command is transmitted to the first to third camera controllers 33 to 35 through 323.

The first camera controller 33 of the camera tracking system 30 transmits an operation command selected by a user and an operator to the camera 40 and the number indicator 50, and controls other operations related to the camera 40.

As shown in FIG. 5, the first camera controller 33 of the camera tracking system 30 includes a data storage unit 331, a central processing unit 332, a communication unit 333, and a camera environment data input unit 334. The data storage unit 331 stores information such as the position, focus, brightness, background, and outline of the camera 40 as hexadecimal data, and the central processing unit 332 includes an interface unit ( After converting the command transmitted from the 32 into the contents corresponding to the camera 40, the communication unit 333 is connected to operate the camera 40, the communication unit 333 serves to exchange commands with the camera 40. The camera environment data input unit 334 allows the operator to change information such as the position, focus, brightness, background, and contour of the camera 40 stored in the data storage unit 331.

That is, the central processing unit 332 of the first camera control unit 33 of the camera tracking system 30 may include the position, focus, brightness, background, outline, etc. of the camera and microphone devices corresponding to the signal input from the interface unit 32. Information is read from the data storage 331 and transmitted to the camera 40 through the communication unit 333 so that the camera 40 operates according to predetermined optimal setting information. 1 The central processor 332 of the camera controller 33 controls the position, focus, and position of the camera 40 stored in the data storage 331 according to a signal input from the camera environment data input unit 334 by the operator. You can change information such as brightness, background, and outline. Accordingly, the operator can control the camera 40 using the camera environment data input unit 334 to record and record while tracking the user (subject) according to the intention of the operator.

The first camera control unit 33 corresponds to the camera 40, and may be expanded together with the second camera control unit 34 and the third camera control unit 35 to correspond to the increase in the number of cameras. The operations of the second and third camera controllers 34 and 35 are the same as those of the first camera controller 33. The camera 40 is transmitted from the camera tracking system 30. Automatically adjust the position, focus, brightness, background, and contour according to ID information and environment information to capture the user (subject). That is, the camera 40 adjusts its own position, focus, brightness, background, contour, etc. according to the information input from the camera tracking system 30, and the camera having such a self-adjusting function is easily available on the market. Since a known camera that can be purchased is used, a description of the specific structure of the camera 40 will be omitted.

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The number indicator 50 displays the number of the camera 40 currently being photographed.

The image input unit 70 processes an image signal of a user (subject) input from the camera 40, and the audio input unit 60 records audio and sound of the user (subject) to the AV selection system 80. send.

The AV selection system 80 outputs a control signal for reproducing the video and audio signals input from the video input unit 70 and the audio input unit 60 described above.

The monitor 90 outputs the reproduced video signal as an image, and the speaker 100 outputs the reproduced audio signal as voice and sound so that the user's aspect and voice are output.

As described in the above embodiments, the present invention provides a variety of conditions related to the photographing position, focus, brightness, background, outline, etc. of each camera in photographing a subject using a plurality of cameras. By selecting a condition so that shooting and recording are performed and video and audio signals thus shot and recorded are reproduced, the dynamic screen can be configured.

1 is a block diagram of an image lecture and conference system with a tracking control function according to an embodiment of the present invention.

2 is a block diagram of a camera tracking system of a video lecture and conference system having a tracking control function according to an embodiment of the present invention.

3 is a block diagram illustrating an input unit of a camera tracking system of an image lecture and conference system having a tracking control function according to an exemplary embodiment of the present invention.

4 is a block diagram of an interface unit of a camera tracking system of a video lecture and conference system having a tracking control function according to an embodiment of the present invention.

5 is a block diagram of a camera controller of a camera tracking system of an image lecture and conference system with a tracking control function according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: switch selector 20: microphone selector

30: camera tracking system 40: camera

50: number indicator 60: voice input unit

70: video input unit 80: AV selection system

90: monitor 100: speaker

Claims (5)

A switch selector which removes and outputs a noise signal included in a camera selection signal input as a wired signal or a wireless signal by a user (a lecture participant or a meeting participant); A microphone selection unit for removing and outputting a noise signal included in a microphone selection signal input by a user (lecture attendee or conference attendee); The signal input from the switch selector and the microphone selector is converted into a digital signal, and the ID of the camera and the microphone device is interpreted while controlling according to the intention of the operator, and information such as the camera position, focus, brightness, background, and contour A camera tracking system controlling the camera having a corresponding ID to be photographed and recorded under selected conditions; A camera for photographing a user (subject); A number indicator for displaying the number of the camera being photographed; A voice input unit for recording a voice and sound of a user (subject); An image input unit for inputting an image signal of a user (subject) input from a camera; An AV selection system for reproducing video and audio signals input from an image input unit and an audio input unit; A monitor for outputting a reproduced video signal as an image; And And a speaker for outputting a reproduced audio signal as voice and sound. The method of claim 1, wherein the camera tracking system, An input unit for converting an analog signal input from the switch selector and the microphone selector into a digital signal and simultaneously transmitting the ASCII signal to the interface unit; An interface unit serving as an intermediate part of the entire system and transmitting control commands to all devices constituting the system; And A video lecture and conferencing system having a tracking control function, comprising a plurality of camera controllers for transmitting operation commands selected by a user and an operator to a camera and a number indicator and controlling other operations related to the camera. According to claim 2, wherein the configuration of the input unit of the camera tracking system, An individual switch converting unit for receiving a physical switch input signal and converting the digital switch into digital ASCII data for the system and outputting the digital ASCII data; A central processing unit which connects the user and the system by performing data decoding and encoding to perform a desired operation of the user; And A video lecture and conferencing system with tracking control, comprising an operator control panel that allows an operator to make a direct connection. The configuration of the interface unit of the camera tracking system according to claim 2, A data storage unit storing ID information of camera and microphone devices corresponding to signals input from the input unit; A central processing unit for physically connecting the input unit and the camera control unit; And And a communication unit for exchanging commands with the camera control unit. According to claim 2, wherein the configuration of the camera control unit of the camera tracking system, A data storage unit which stores information such as the position, focus, brightness, background, and contour of the camera; A central processing unit converting a command transmitted from the interface unit into contents corresponding to the camera and then connecting the communication unit to operate the camera; A communication unit for exchanging commands with the camera; And Image lecture with a tracking control function comprising a camera environment data input unit for allowing the operator to change information such as the position, focus, brightness, background, contour, etc. of the camera stored in the data storage unit And conference system.