JPS62199184A - Animation input device for electronic conference system - Google Patents

Abstract

PURPOSE:To delete the number of television camera sets for inputting an animation by providing a movable mirror corresponding to plural conference objects and an animation selector part for controlling the movable mirror and conducting the desired image of the conference object to an animation input part. CONSTITUTION:The movable mirror part 303 is constituted of the plural movable mirrors 301a-301d disposed by 1 to correspondingly to the conference attendance of the plural conference objects and by controlling the respective mirrors, the desired image of the conference object is conducted to the animation input part 310. For instance, if the image of conference attendance A is conducted to the input part 310, the mirrors 301a-301d controlled to a prescribed position by the animation selector part 320 and the image A is conducted to the input part 310 through the reflection of the respective mirrors. The image of other attendance is similarly conducted to the input part 310 by controlling the corresponding movable mirror and corrected through an animation encoding part 330 in the case of a lateral reverse image. Thereby, only by providing a single television camera in the input part 310, the images of the attendance A-D are taken and the number of the camera sets for inputting the animation can be limited.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a moving picture input device, and particularly relates to a moving picture input device that uses a small number of television cameras to input moving picture data.

[Technical Background of the Invention] As this electronic conference system, for example, the one shown in FIG. 6 has been considered. As shown in the figure, this electronic conference system includes a microphone 1, a speaker 2, a television camera 3 that displays an image of the conference room, and a television camera 4 that displays a manuscript.
, a television monitor 5, a facsimile device 6, a hard copy device 7 as a printer, an audio unit 8 for encoding and decoding audio signals from the microphone 1 and speaker 2, and an image unit 9 for encoding and decoding image signals. , a control unit 10 that controls the image unit, a control unit 10
It is comprised of an operation unit 11 for inputting instructions, and a transmission unit 12 for transmitting and receiving audio signals and image signals.

[Problems in the background art] However, in such a conventional electronic conference system, as many TV cameras 3 as there are callers are prepared, and the A-perator operates the TV cameras 3 for each speaker who is speaking. As the number of attendees increases, the number of TV cameras 3 required also increases, leading to an increase in costs.
Furthermore, there is a problem that the device becomes complicated. Furthermore, when this television camera 3 is incorporated into one device, there is a problem that the device becomes larger.

[Object of the Invention] The present invention has been made to address the above-mentioned problems, and its purpose is to provide a moving image input device that uses fewer television cameras to input moving images.

[Summary of the Invention] That is, the video input device of the present invention is a video input device for an electronic conference system that includes a video input section for inputting video data, processes the input video data, and sends it into the system. By including a movable mirror installed corresponding to the object, and a video selection section that controls the movable mirror and guides the image of the desired meeting object to the video input section, the number of moving images is greater than the number of meeting objects. This greatly reduces the number of television cameras that input the information.

[Embodiments of the Invention] Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

FIG. 1 is a block diagram showing an example of a conference unit system of an electronic conference system to which a video input device of the present invention is applied.

The control device 900 is connected to drawing, still image, moving image, and audio input devices, and to the control device 900 is connected to soft copy, hard copy, and audio output devices. Signals from these input devices and signals to the output device are subjected to processing such as selection and multiplexing according to several control information signals, and are then transmitted.

Input devices include a plurality of drawing input devices 100 for inputting handwritten characters and figures, and a still image input device 200 for inputting documents before or during the meeting. Video input device 300 for inputting images of conference attendees and blue shells in the conference hall. and a voice input device 400 for inputting voice.
is connected.

The output devices include a plurality of flat display devices 150 and graphic display devices (1) 160, graphic display devices @ (1) 1, which display the input information of the own terminal and the transmitted drawing type and still image type.
A hard copy device 250 for making a copy of 60, a graphic display device (2>350) for displaying the input information of the own terminal and the transmitted moving image, and an audio output device 450 for outputting the transmitted audio input information are connected. has been done.

Further, the storage device 600 records and reads these input/output information. The transmission device 700 is connected to two other remote conference unit systems.

The above input/output information is transmitted through signals from devices such as an operation input device 850, a state detection device 800 that detects when conference participants take or leave their seats, and a speaker identification device 510 that determines the speaker from the voice of the conversational person. The tip is controlled.

FIG. 2 is a block diagram of a moving image input device 300 according to the first embodiment of the present invention. This video input device 300 is composed of a plurality of movable mirror portions 301a to 301d provided one-to-one for conference attendees, who are a plurality of conference objects, and is configured to select a desired image by a switching signal sent from a video selector section 320, which will be described later. a movable mirror portion 303 for selecting images of conference attendees;
3 video input units consisting of a single television camera that displays images of conference participants selected by the movable mirror part 303
, a video selector unit 320 that controls the movable mirror part 303 using a speaker switching signal (PID) from the control device 900, and a video input signal (PIN>) inputted by the video input unit 310, which is compressed and encoded. Video encoding unit 330
Then, frame identification (FID) and speaker switching signal are added to this encoded video data (PSD)! (PID).

FIG. 3 is an explanatory diagram showing the specific arrangement of the movable mirror part 303, the moving image input section 310, and the moving image selector section 320.
d are meeting attendees A, B, and C.

Each movable mirror 3 is arranged corresponding to D.
The rotation angles of 01a to 301d are controlled according to a switching signal sent from the moving image selector section 320.

The operation of this moving image input section @300 will be explained below.

Now, when introducing the image of conference attendee A to the video input section 310 -
, the video selector section 320 selects each movable mirror 301a to 301a.
01d is controlled to the position shown by the solid line in FIG. Then, the image of conference attendee A will be on the movable mirrors 301a and 301b.
, 301c, and 301d and guided to the video input section 310.

On the other hand, images of other conference attendees B, C, and D are reflected by movable mirrors 301b, 301G, and 301d, respectively.
It is not guided to the video input section 310.

Furthermore, when guiding images of other conference attendees B, C, and D to the video input section, the rotation angles of the movable mirrors 301a to 301d are appropriately controlled. In addition, movable mirrors 301a to 30
1d, the images of the conference participants subjected to an even number of reflections are left and right reversed when input to the video input section 310, but correction in this case is performed by the video encoding section 330, which will be described later.

In order to select a single meeting attendee using the video selector unit 320 in this way, the transmission capacity of the line is 64 kbps, and considering that audio data must also be sent to this line, multiple video inputs are not possible. This is because it is virtually impossible.

Conference attendees (for example, A) input in the video input section 310
The image is sent to the video encoding unit 30 as a video input signal (PIN).
Sent to 0.

Note that it is also possible to disconnect the video input section of a person who leaves the meeting during the meeting using the speaker signal (PID).

The video encoding unit 330 converts the video input unit @(PIN) to 32 kbps, for example, by performing sampling processing using a frame drop method, predictive encoding processing using an interframe encoding method, direct exchange encoding processing using a cosine transform encoding method, etc. The data is compressed and sent to the identifier adding unit 340 as moving image data (PSD).

The identifier adding unit 340 adds a frame identifier (FID) indicating that the video data is video data, and a speaker switching signal (P
ID) is added to the video data (PSD) and sent to the control device 900 as transmission data (SXD).

Therefore, according to this embodiment, only a single television camera is provided as the video input section 31-O, and four conference attendees A-
It is possible to capture the D image.

FIG. 4 is a block diagram showing a video input device 300 according to a second embodiment of the present invention, and elements having the same functions as those in the first embodiment are given the same numbers as in the first embodiment. However, duplicate explanations will be omitted.

In this embodiment, the movable mirror part 303 consists of two movable mirrors 301e to 301d, and the moving image input section 310a consists of two movable mirrors 301e to 301d.
One of the two video input units @PIN1 and PIN2 output from the video input unit 310a is selected by a signal sent from the video selector unit 320 and output to the video encoding unit 330. A switching unit 314 is provided to

FIG. 5 is an explanatory diagram showing a specific arrangement of the movable mirror part 303, the moving image input section 310a, the switching section 315, and the moving image selector section 320. The movable mirror 301e is rotationally controlled by the moving image selector section 320, and sends an image of one of conference attendees A or B to the television camera 312a.

Similarly, the movable mirror 301d is rotationally controlled by the moving image selector section 320, and sends an image of one of conference attendees C or D to the television camera 312b.

Next, the operation of this embodiment will be explained. When inputting the video data of conference attendee A among the four conference attendees A, B, C, and D into the system, the video selection section 320 positions the movable mirrors 301e and 311f as indicated by solid lines in the figure. The rules are as follows.

As a result, the television camera 312a shows the conference attendee A.
An image of conference attendee C is input to the television camera 312b. TV cameras 321a, 321
The video input devices PIN1 and PIN2 from b are the switching unit 31
However, the switching unit 315 receives the speaker switching signal QPID from the control device 900, and this speaker switching signal @PID causes the switching unit 315 to switch the video input signal P
IN1 is selected and output to the video encoding section 330.

Hereinafter, through the same procedure as in the first embodiment, the transmission data SX
D is output from the video input device 900. Video data of conference attendee A is then input to the system from the video input device 900.

When inputting the video data of conference attendee B into the system, the movable mirror 301e may be controlled by the video selector unit 320 so as to be in the position shown by the dotted line in the figure.Also, the video data of conference attendee C may be input into the system. In this case, the movable mirror 301f is controlled to the position shown by the solid line, and the switching unit 315 selects the video input signal PIN2 of the television camera 312b.

In the case of a conference attendee, the movable mirror 301f is set to the dotted line position, and the switching unit 315 selects the video input signal PIN2 of the television camera 312b.

Therefore, in this embodiment, two television cameras 312a and 312b are provided as the moving image input section 310a, and images of four people can be handled.

Although the first and second embodiments have been described with reference to four conference attendees, the number of conference attendees in the present invention is not limited to four. That is, in the first and second embodiments, the movable mirror 301
Of course, by changing the number and arrangement of a to 301f, it is possible to handle even more conference attendees.

[Effects of the Invention] As described above in detail, according to the present invention, the number of television cameras that input moving images can be reduced.

[Brief explanation of drawings]

Fig. 1 is a block diagram of the electronic conference system, Fig. 2 is a block diagram showing a first embodiment of the present invention, Fig. 3 is a layout diagram of movable mirrors, etc. in the first embodiment, and Fig. 4 is a block diagram of the electronic conference system. FIG. 5 is a block diagram showing a second embodiment of the invention, FIG. 5 is a layout diagram of movable mirrors, etc. in the second embodiment, and FIG. 6 is a block diagram of a conventional electronic conference system. 300...Video input device 303...
...Movable mirror part 310...Video input section 315...Switching section 320...Video selector department agent Patent attorney 300 Figure 3 Figure 5

Claims (3)

[Claims] (1) A movable mirror installed corresponding to multiple meeting objects in a video input device of an electronic conference system that is equipped with a video input unit that inputs video data, processes the input video data, and sends it into the system. An electronic conference system characterized by comprising: a video selecting section that controls the movable mirror to guide an image of a desired conference object to the video input section. (2) The video input section consists of a single television camera,
The movable mirror is provided in one-to-one correspondence with the conference object, and the video selector section controls the movable mirror to guide an image of one conference object to the video input section. A video input device for an electronic conference system according to item 1. (3) The video input section consists of a plurality of television cameras,
Claim 1, wherein the movable mirrors are provided at a ratio of 1 to a plurality of N conference objects, and a switching unit is provided for selecting images of the plurality of television cameras. Video input device for electronic conference system.