JPH0759070A - Display controller - Google Patents

Abstract

PURPOSE:To display each monitor in an excellent way when television systems whose aspect ratio differs are in existence in mixture via a communication line. CONSTITUTION:The display controller is provided with a picture processing 1 means 4, in which when a changeover means 3 selects a 1st image pickup means 1, a picture with a 1st aspect ratio is displayed on a 1st monitor 13 and the picture of the 1st aspect ratio is converted into a picture of a 2nd aspect ratio by adding a space or deleting the space of upper/lower/left/right picture portion of the picture signal of the 1st aspect ratio and the converted picture signal is displayed on a 2nd monitor 14 and when the changeover means 3 selects a 2nd image pickup means 2, the picture of the 2nd aspect ratio is converted into a picture of a 1st aspect ratio by adding a space or deleting the space of upper/lower/left/right picture portion of the picture signal of the 2nd aspect ratio and the converted picture signal is displayed on the 1st monitor 13 and the picture with a 2nd aspect ratio is displayed on the 2nd monitor 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display control device,
In particular, in a television conference system, a television with an aspect ratio of 3: 4 such as an NTS television or a PAL television and a television with an aspect ratio of 9:16 such as a high-definition television or a landscape screen television are mixed. It is suitable for use in the system.

[0002]

2. Description of the Related Art In recent years, research and introduction of a television conference system have become active, and standardization movements are also under way. However, the current television conference system is based on a television signal having an aspect ratio of 3: 4 such as an NTSC television signal or a PAL television signal, and a CIF (Common Interface) is an intermediate format suitable for this. Fo
rmat) and the like have been proposed.

On the other hand, for television broadcasting, as in high-definition television, the aspect ratio is 9:16.
Is being promoted, and accordingly, a landscape screen television capable of displaying an image with an aspect ratio of 9:16 even if it is not a high-definition television signal has been proposed. High-definition television and landscape screen television are expected to spread rapidly in the future.

[0004]

In response to the above-mentioned movements, attempts have been made to introduce a high-definition television and a landscape screen television into a television conference system. However, the current standardized intermediate format is The aspect ratio is 3: 4, which is becoming popular in the standardization movement. Therefore, in the future, it is conceivable that a television conference system with an aspect ratio of 9:16 and a television conference system with an aspect ratio of 3: 4 will coexist, and there is a high possibility of mutual communication. The development of a system that can handle such cases is a major issue.

In view of the above background, the present invention enables a good display on the monitor of each television system when television systems having different aspect ratios are mixed through a communication line. The purpose is to do.

[0006]

In order to achieve the above-mentioned object, the display control device of the present invention comprises a first image pickup means for picking up an image at a first aspect ratio and a second aspect ratio. Second image pickup means for picking up images, first monitor means for displaying an image with the first aspect ratio, second monitor means for displaying an image with the second aspect ratio, and A switching unit that switches between the first imaging unit and the second imaging unit, an image captured by the first imaging unit and an image captured by the second imaging unit according to the selection state of the switching unit. Image processing means for performing a predetermined process on the first monitor means when the state of the switching means selects the first image pickup means.
While displaying the image of the aspect ratio of
A blank is added to or deleted from the upper and lower or left and right image parts of the image signal of the first aspect ratio on the monitor means to convert and display the image of the second aspect ratio on the monitor portion, and the switching means of the switching means When the second image pickup means is selected as the state, the first monitor means adds the blanks to the upper and lower or left and right image portions of the image signal of the second aspect ratio to delete the first image. The image of the second aspect ratio is converted and displayed, and the image of the second aspect ratio is displayed on the second monitor means.

Another feature of the present invention is that
A first imaging means for imaging with a first aspect ratio; and a second
Second image pickup means for picking up an image with an aspect ratio of 1 and an upper and lower side or a left side and right side of a picked-up image of the second aspect ratio,
Second aspect ratio converting means for converting into an aspect ratio, first monitor means for displaying an image at a first aspect ratio, and second monitor means for displaying an image at a second aspect ratio. Monitoring means, switching means for switching between the first imaging means and the second imaging means, an image captured by the first imaging means and the second imaging means according to the selection state of the switching means. Image processing means for performing a predetermined process on the image captured by, by the action of the image processing means,
When the state of the switching means selects the first image pickup means, the image of the first aspect ratio is displayed on the first monitor means and the second monitor means is displayed. By adding or deleting blanks in the upper and lower or left and right image portions of the image signal of the first aspect ratio, the image is converted into the image of the second aspect ratio and displayed, and the state of the switching means is changed to the second state.
When the image pickup means is selected, the image of the first aspect ratio is scaled up or down or left and right to return to the image of the second aspect ratio, and then the first monitor means is used. By adding or deleting blanks in the upper and lower or left and right image portions of the image signal of the second aspect ratio, the image is converted into the image of the first aspect ratio and displayed, and the second monitor means displays a second image. The image of the aspect ratio of is displayed.

Another feature of the present invention is that the image pickup means outputs an image pickup signal having a first aspect ratio or an image pickup signal having a second aspect ratio, and a first aspect ratio. Aspect ratio setting means for setting which of the first monitor means for displaying an image with a ratio and the second monitor means for displaying an image with a second aspect ratio is used, When the first aspect ratio monitor means is set in the ratio setting means, the first means is selected from the image pickup means.
And an image signal of the second aspect ratio from the image pickup means when the second aspect ratio monitor means is set in the aspect ratio setting means. And an imaging aspect ratio switching means for extracting a signal.

Another feature of the present invention is that a discriminating circuit for discriminating the type of the video signal from the connected image input means, and a video signal from the image input means according to the discrimination result of the discriminating circuit. The compression method of is switched.

[0010]

Since the display control device of the present invention has the above technical means, the first aspect ratio (for example, the aspect ratio 3:
In a system in which the first display means of 4) and the second display means of the second aspect ratio (for example, the aspect ratio 9:16) are mixed, the state of the image pickup means and the display means By controlling the image pickup means and the image processing means on the basis of the above, and matching the aspect ratio, it is possible to favorably connect the television systems having different aspect ratios.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the display control device of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a first embodiment of the display control device of the present invention. In FIG. 1, reference numeral 1 is a first camera for imaging with an aspect ratio of 3: 4,
Reference numeral 2 is a second camera for imaging with an aspect ratio of 9:16.

Further, 4 is an image processing unit for converting the image captured by the second camera 2 to an aspect ratio of 3: 4 by contracting the left and right or extending the top and bottom, and 3 is the first camera 1. Of the image signal selected by the image selector 3, and a control signal for connecting the image signal selected by the image selector 3 to the line 8 and a transmission control unit 9 through the line 8. 5 is a transmission control unit connected to.

Next, 6 is a system control unit for controlling the image selector 3 and the transmission control unit 5, 7 is a camera switching operation unit for selecting the first camera 1 or the second camera 2, and 15 is a transmission unit. It is a 3: 4 format conversion processing section for displaying the image signal received through the control section 9 on the first monitor television 13 at an aspect ratio of 3: 4 under the control of the system control section 10.

Reference numeral 12 is a 9:16 format conversion process for displaying the image signal received through the transmission control unit 9 on the second monitor television 14 at an aspect ratio of 9:16 under the control of the system control unit 10. And 11 are system control units 1
0, the transmission control unit 9, the line 8, and the transmission control unit 5 to transmit a control signal to the system control unit 6 to transmit the first camera 1 and the second camera 1.
3 shows respective camera switching operation units for switching the cameras 2 of FIG.

In the above structure, the first camera 1, the second camera 2, the image processing section 4, the image selector 3,
Transmission control unit 5, system control unit 6, camera switching operation unit 7
Constitutes the image transmission system. In addition, the transmission control unit 9,
System control unit 10, 3: 4 system conversion processing unit 15, first
The monitor television 13, the 9:16 system conversion processing unit 12, the second monitor television 14, and the camera switching operation unit 11 constitute an image receiving system.

In a general television conference system,
In addition to the above transmission system and reception system, a voice transmission / reception system, a data transmission / reception system, a control signal transmission / reception system, and the like are systematized to configure each station.

The operation of the above arrangement will be described below with reference to the operation explanatory diagram of FIG. Now, the image captured by the first camera 1 with an aspect ratio of 3: 4 is
As shown in (A), the image has an aspect ratio of 3: 4. On the other hand, the image captured by the second camera 2 having an aspect ratio of 9:16 has an aspect ratio of 9:16, as shown in (B).

The image processing unit 4 scales the aspect ratio of the image of (B) (compresses it in the horizontal direction) and converts it into an image having an aspect ratio of 3: 4 as shown in (C). To do. The image selector 3 selects the image (A) from the first camera 1 or the image (B) from the image processing unit 4, and the selection is made on the transmission side through the camera switching operation unit 7. It is performed through the camera switching operation unit 11 on the receiving side.

When the camera switching operation unit 7 is operated on the transmission side, this operation signal is sent to the image selector 3 through the system control unit 6 and the signal of the first camera 1 or the signal of the image processing unit 4, that is, the second camera. The two picked-up images are selected.

On the other hand, when the camera switching operation unit 11 is operated on the receiving side, this operation signal is transmitted from the system control unit 10 to the transmission control unit 5 through the transmission control unit 9 and the line 8 and given to the system control unit. Based on this signal, the system control unit 6 controls the image selector 3 to select the signal of the first camera 1 or the signal of the image processing unit 4, that is, the captured image of the second camera 2.

Whether the image from the first camera 1 or the image from the second camera 2 is selected is determined by the system controller 6, the transmission controller 5, the line 8, and the like.
It is transmitted to the system control unit 10 through the transmission control unit 9.

Now, it is assumed that the image from the first camera 1, that is, the image as shown in (A) is selected by the image selector 3. This image (A) shows the transmission control unit 5
Has been converted to an intermediate format suitable for transmission,
The image is compressed and sent to the line 8. This image is received by the transmission control unit 9, undergoes image expansion, and is output as a general television signal having an aspect ratio of 3: 4.

On the other hand, since the selection of the first camera 1 is transmitted to the system control unit 10, the system control unit 10 sends a control signal to the 9:16 system conversion processing units 12 and 15. Be done. Upon receiving this control signal, the 3: 4 format conversion processing section 15 receives the control signal from the first monitor television 13.
Then, as shown in (D), the image (A) is displayed with the same aspect ratio.

The 9:16 system conversion processing unit 12 which has received the control signal based on the selection of the first camera 1 adds a signalless portion to the left and right of the screen of (A) so that the aspect ratio is 9:16. A signal is displayed on the second monitor television 14 as shown in (E).

It is assumed that the image from the second camera 2, that is, the image output from the image processing unit 4 as shown in (C) is selected by the image selector 3. The image (C) is appropriately converted into an intermediate format suitable for transmission by the transmission control unit 5, is subjected to image compression, and is sent to the line 8. This image (C) is received by the transmission control unit 9,
The image is expanded and output as a general television signal with an aspect ratio of 3: 4.

On the other hand, since the fact that the second camera 2 is selected is transmitted to the system control unit 10, the 9:16 system conversion processing unit 12, 3: 4 from the system control unit 10 is transmitted.
A control signal is sent to the system conversion processing unit 15.
Upon receiving this control signal, the 3: 4 format conversion processing unit 15
As shown in (F), the image of (C) is once returned to the image shown in (B) on the monitor television 13 of the above, and a signalless portion is added to the top and bottom to display a screen with an aspect ratio of 3: 4. Let

Upon receiving the control signal based on the selection of the second camera 2, the 9:16 system conversion processing unit 12 temporarily extends the screen of the image (C) to the left and right to restore the image of (B), )
The second monitor television 14 is caused to display it as a signal having an aspect ratio of 9:16 as shown in FIG.

As explained above, the aspect ratio is 3: 4.
The image from the first camera 1 of the
3: depending on whether the image from camera 2 is selected:
By controlling the 4-system conversion processing unit 15 and the 9:16 system conversion processing unit 12, even the first monitor television 13 having an aspect ratio of 3: 4 can display the second system having an aspect ratio of 9:16.
Even the monitor television 14 can transmit the imaged image from the transmission side to the reception side and display the image on the upper, lower, left, and right sides of the screen without any loss regardless of the aspect ratio of the monitor on the receiving side.

Further, in the configuration as shown in FIG. 1, another example of the operation will be described next with reference to the explanatory views of FIGS.
3 is an explanatory diagram of the operation on the transmitting side, and FIG. 4 is an explanatory diagram of the operation on the receiving side.

Now, the first camera 1 with an aspect ratio of 3: 4
The image captured in (3) is an image with an aspect ratio of 3: 4, as shown in FIG. On the other hand, the aspect ratio is 9: 1
The image captured by the second camera 2 of No. 6 has an aspect ratio of 9:16, as shown in FIG.

The image processing section 4 scales the aspect ratio of the image of FIG. 3 (B) to convert it into an image with an aspect ratio of 3: 4 as shown in FIG. 3 (C). The image selector 3 selects an image from the first camera 1 or an image from the image processing unit 4, and the selection is performed through the camera switching operation unit 7 on the transmitting side and the camera switching operation on the receiving side. Part 11 is performed.

When the camera switching operation section 7 is operated on the transmitting side, this operation signal is sent to the image selector 3 through the system control section 6, and the signal of the first camera 1 or the signal of the image processing section 4, that is, the second signal. The image picked up by the camera 2 is selected.

On the other hand, when the camera switching operation unit 11 is operated on the receiving side, this operation signal is transmitted from the system control unit 10 to the transmission control unit 5 through the transmission control unit 9 and the line 8 and given to the system control unit 6. Based on this signal, the system controller 6 image selector 3 is controlled to select the signal of the first camera 1 or the signal of the image processor 4, that is, the image captured by the second camera 2.

Whether the image from the first camera 1 or the image from the second camera 2 is selected on the transmitting side depends on whether the system controller 6 transmits the transmission controller 5,
It is transmitted to the system control unit 10 on the receiving side through the line 8 and the transmission control unit 9. Now, the image from the first camera 1,
That is, the image as shown in FIG.
It has been selected by. This image is appropriately converted into an intermediate format suitable for transmission by the transmission control unit 5, is subjected to image compression, and is sent to the line 8.

This image is received by the transmission control unit 9, receives the image expansion, and is output as a television signal with a general aspect ratio of 3: 4 as shown in FIG. On the other hand, since the fact that the first camera 1 is selected is transmitted to the system control unit 10, the system control unit 10 notifies the 9:16 system conversion processing unit 12 and the 3: 4 system conversion processing unit 15 of the selection. A control signal is sent out.

Upon receipt of this control signal, the 3: 4 system conversion processing section 15 causes the first monitor television 13 to display the image of FIG. 4 (A) without changing the aspect ratio as shown in FIG. 4 (D). To display. Upon receiving the control signal based on the selection of the first camera 1, the 9:16 system conversion processing unit 12 deletes the upper and lower areas of the screen of FIG. 4A, and then outputs the signal of the aspect ratio 9:16. 4E on the second monitor television 14.
Display as shown in.

On the other hand, an image with an aspect ratio of 9:16 shown in FIG. 3B from the second camera 2, that is, the image processing unit 4 performs left / right scaling to obtain an aspect ratio of 3: 4. It is assumed that the image as shown in FIG. 3 (C) converted into is selected by the image selector 3. This image is appropriately converted into an intermediate format suitable for transmission by the transmission control unit 5, is subjected to image compression, and is sent to the line 8. This image is received by the transmission control unit 9, undergoes image expansion, and is first output as a general television signal having an aspect ratio of 3: 4.

Since the fact that the second camera 2 is selected is transmitted to the system control unit 10, the system control unit 10 instructs the 9:16 system conversion processing unit 12 and the 3: 4 system conversion processing unit 15. Control signal is sent out. Upon receiving this control signal, the 3: 4 system conversion processing unit 15 first receives the control signal shown in FIG.
After deleting the left and right sides of the image shown in (C), the left and right sides are scaled and returned to an aspect ratio of 3: 4, and a screen as shown in FIG. 4 (F) is displayed.

On the other hand, the 9:16 system conversion processing unit 12 which has received the control signal based on the selection of the second camera 2 extends the screen of (C) once to the left and right to restore the image of FIG. 3 (B). ,
As shown in (G), a signal having an aspect ratio of 9:16 is displayed on the second monitor television 14.

As explained above, the aspect ratio is 3: 4.
3: 4 depending on whether the image from the first camera 1 or the image from the second camera 2 is selected.
By controlling the system conversion processing unit 15 and 9:16 system conversion processing unit 12, even the first monitor television 13 having an aspect ratio of 3: 4 or an aspect ratio of 9:16.
The second monitor television 14 also transmits the captured image from the transmission side to the reception side and displays it without depending on the aspect ratio of the monitor on the reception side and without forming blank portions in the upper, lower, left, and right directions. can do.

In the above-described first embodiment, the case where both the first monitor television 13 and the second monitor television 14 are placed on the receiving side is illustrated, but the aspect ratio is 3: 4.
First monitor TV 13 or 9: 1 asspect ratio
Even in the receiving side configuration in which only one of the second monitor television 14 of No. 6 is placed, the same effect can be obtained.

In the first embodiment described above, the image selector 3 is used to switch the first camera 1 or the second camera 2 to
An example is shown in which the camera switching operation unit 7 or the camera switching operation unit 11 is used for selection, and the 3: 4 system conversion processing unit 15 and the 9:16 system conversion processing unit 12 are controlled based on this selection signal. However, in the case of a system in which only the first camera 1 or the second camera 2 is placed on the transmitting side, by transmitting the aspect ratio information of the camera used from the transmitting side to the receiving side, Since it is possible to control the 3: 4 system conversion processing unit 15 and the 9:16 system conversion processing unit 12, it is possible to obtain exactly the same effect.

Next, a second embodiment of the display control device of the present invention will be described. FIG. 5 is a block diagram of a display control device according to the second embodiment of the present invention. In FIG. 5, the same or corresponding parts as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. As shown in FIG. 5, in the second embodiment, only the second camera 2 for performing imaging with an aspect ratio of 9:16 is installed on the transmission side. Also, on the receiving side, the first monitor television 1 with an aspect ratio of 3: 4
3 or a second monitor television 14 having an aspect ratio of 9:16 is configured to be selectively connected.

Whether the first monitor television 13 or the second monitor television 14 is connected is set by the monitor setting switch 16. This signal is transmitted from the system controller 10 to the transmission controller 9 and the line 8. , Transmission control unit 5
Is transmitted to the system control unit 6 on the transmission side.

Incidentally, the image processing unit 4 deletes the left and right regions of the image having the aspect ratio of 9:16 captured by the second camera 2 under the control of the system control unit 6 and removes the aspect ratio of 3. : 4: an image having an aspect ratio of 9:16 or a function of scaling the left and right sizes of an image having an aspect ratio of 9:16 to convert an image having an aspect ratio of 3: 4.

Next, the operation of the display control device of the second embodiment will be described with reference to the operation explanatory diagram of FIG. The video imaged by the second camera 2 on the transmission side is a horizontally long screen with an aspect ratio of 9:16, as shown in FIG.
On the other hand, on the receiving side, the first monitor television 13 or the second monitor television 14 is selectively connected for display. Which monitor is connected is input from the monitor setting switch 16.

Now, on the receiving side, the first monitor television 1
If 3 is connected, this is transmitted to the transmission side and input to the system control unit 6. As a result, the image processing unit 4 deletes the left and right portions of the image from the second camera 2 as shown in FIG. 6B, and converts the image into an image having an aspect ratio of 3: 4.

FIG. 6B derived from the image processing unit 4.
The output video as shown in (1) is converted into an intermediate format for transmission by the transmission control unit 5, is compressed for transmission, and is transmitted to the receiving side through the line 8. On the receiving side, the transmission control unit 9 receives this image and decompresses it.
The intermediate format is output as a normal television signal with an aspect ratio of 3: 4. This signal is directly displayed on the first monitor television 13 as shown in FIG. 6 (F).

On the other hand, when the second monitor television 14 is connected on the receiving side, this is transmitted to the transmitting side and input to the system control unit 6. As a result, the image processing unit 4 scales the left and right sizes of the image from the second camera 2 as shown in (C) to convert the image into an image with an aspect ratio of 3: 4.

The output video derived from the image processing unit 4 as shown in FIG. 6C is converted into an intermediate format for transmission in the transmission control unit 5, and compressed for transmission to receive the line. 8 to the receiving side. On the other hand, on the receiving side, the transmission control unit 9 receives and expands this image, and outputs the intermediate format as a television signal with a normal aspect ratio of 3: 4 as shown in FIG. To do. This signal is sent to the 9:16 system conversion processing unit 12
In FIG. 6, the left and right are subjected to a scaling process and given to the second monitor television 14 as a signal having an aspect ratio of 9:16, and displayed as shown in FIG.

As described above, by appropriately processing the image on the transmitting side according to the aspect ratio of the monitor connected on the receiving side, it becomes possible to efficiently perform transmission, and the receiving side An image signal suitable for the connected monitor can be obtained.

FIG. 7 is a block diagram of a display control device according to the third embodiment of the present invention. In FIG. 7, the same or corresponding parts as those in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted. As shown in FIG. 7, on the transmission side, a first camera 1 that captures images with an aspect ratio of 3: 4 and a second camera 2 that captures images with an aspect ratio of 9:16 are installed. There is. On the receiving side, the first monitor television 13 having an aspect ratio of 3: 4 or the second monitor television 14 having an aspect ratio of 9:16 is selectively connected.

Whether the first monitor television 13 or the second monitor television 14 is connected is set by the monitor setting switch 16. This signal is transmitted from the system controller 10 to the transmission controller 9 and the line 8. , Transmission control unit 5
Is transmitted to the system control unit 6 on the transmission side.

Incidentally, the image processing unit 4 is the second camera 2
It has a function of scaling the left and right sizes of an image with an aspect ratio of 9:16, which is picked up in, and converting it to an image with an aspect ratio of 3: 4. The output image of the first camera 1 and the output image of the image processing unit 4 are selected by the image selector 3 controlled by the system control unit 6.

The operation of the display control device of the present embodiment having the above configuration will be described with reference to the explanatory view of FIG. On the transmitting side, the image captured by the first camera 1 is as shown in FIG.
The screen has an aspect ratio of 3: 4 as shown in FIG. Further, the image captured by the second camera 2 is a horizontally long screen with an aspect ratio of 9:16, as shown in FIG. 8B.

On the other hand, on the receiving side, the first monitor television 13 or the second monitor television 14 is selectively connected for display. The monitor setting switch 16 is used to input which monitor is connected. It should be noted that the output image of the second camera 2 shown in FIG. 8B is scaled in the left and right sizes by the image processing unit 4 and has an aspect ratio of 3: 4 as shown in FIG. 8C. It is converted into an image signal.

Now, on the receiving side, the first monitor television 1
If 3 is connected, this is transmitted to the transmission side and input to the system control unit 6. As a result, the system control unit 6 controls the image selector 3 to select an image from the first camera 1 as shown in FIG.

The selected video is converted into an intermediate format for transmission by the transmission control unit 5, is compressed for transmission, and is transmitted to the receiving side through the line 8. On the receiving side, the transmission control unit 9 receives this image, decompresses it, and outputs it as an intermediate format television signal with a normal aspect ratio of 3: 4. This television signal is displayed as it is on the first monitor television 13, as shown in FIG.

On the other hand, when the second monitor television 14 is connected on the transmitting side, this is transmitted to the transmitting side and input to the system control section 6. As a result, under the control of the system control unit 6, the image selector 3 outputs the image of the image processing unit 4 as shown in FIG. 8C, that is, the image from the second camera 2 as shown in FIG. As shown in FIG. 8C, the left and right sizes of B) are set to an aspect ratio of 3: 4.
Select the image obtained by scaling so that

This image is converted into an intermediate format for transmission in the transmission control unit 5, and after being compressed for transmission, it is transmitted to the receiving side through the line 8. On the receiving side, the transmission control unit 9 receives this image, decompresses it, and outputs it as an intermediate format television signal with a normal aspect ratio of 3: 4.

This television signal is subjected to variable magnification processing on the left and right sides in the 9:16 system conversion processing section 12 and is given to the second monitor television 14 as a signal having an aspect ratio of 9:16. ) Is displayed.

As described above, in this embodiment, the transmission is performed by selecting the first camera 1 or the second camera 2 on the transmission side according to the aspect ratio of the monitor connected on the reception side. Can be efficiently performed, and the receiving side can obtain an image signal suitable for the connected monitor.

Next, a fourth embodiment of the display control device of the present invention will be described. FIG. 9 is a block diagram of a display control device according to the fourth embodiment. 9 that are the same as or equivalent to those in FIG. 1 are assigned the same reference numerals and explanations thereof are omitted. As shown in FIG. 9, in the case of this example, the transmitting side is provided with the first camera 1 for capturing an image with an aspect ratio of 3: 4. An angle-of-view switching optical system 17 capable of variable magnification is detachably attached.

On the other hand, on the receiving side, the first monitor television 13 having an aspect ratio of 3: 4 or the second monitor television 14 having an aspect ratio of 9:16 is configured to be selectively connected. .

Whether the first monitor television 13 is connected or the second monitor television 14 is connected is set by the monitor setting switch 16. This setting signal is transmitted from the system control unit 10 to the transmission control unit 9 to the line. 8, the data is transmitted to the system controller 6 on the transmitting side through the transmission controller 5.
The system controller 6 controls the insertion / removal of the angle-of-view switching optical system 17 mounted on the first camera 1.

The operation of the above arrangement will be described with reference to the explanatory view of FIG. On the transmission side, the image captured by the first camera 1 has an aspect ratio that is the same as that of the subject as shown in FIG. 10A when the angle-of-view switching optical system 17 is included. Ratio 4: 3
Is a screen of.

On the other hand, when the angle-of-view switching optical system 17 is not included, as shown in FIG. 10B, the screen has an aspect ratio of 3: 4 in which the ratio of left and right of the image is reduced. This reduction ratio is 12/16 (3/4). On the other hand, on the receiving side, the first monitor television 13 or the second monitor television 14 is selectively connected for display. Monitor setting switch 1 determines which monitor is connected.
Enter from 6.

Now, on the receiving side, the first monitor television 1
If 3 is connected, this is transmitted to the transmission side and input to the system control unit 6. As a result, the system controller 6 controls the angle-of-view switching optical system 17 so that the first camera 1 outputs an image signal as shown in FIG.

This image is given to the transmission control unit 5, converted into an intermediate format for transmission, then compressed for transmission, and transmitted to the receiving side through the line 8.
On the receiving side, the transmission control unit 9 receives this image, decompresses it, converts the intermediate format into a television signal with a normal aspect ratio of 3: 4, and outputs it. This signal is
As shown in (C) of 0, it is displayed as it is on the first monitor television 13.

On the other hand, when the second monitor television 14 is connected on the transmitting side, this is transmitted to the transmitting side and input to the system control unit 6. As a result, the angle-of-view switching optical system 17 is set to the first position under the control of the system controller 6.
8B, the output image from the first camera 1 is an image with an aspect ratio of 3: 4 in which the left and right sizes are optically scaled, as shown in FIG. 8B. Become.

This image is converted by the transmission control unit 5 into an intermediate format for transmission, compressed for transmission, and transmitted to the receiving side through the line 8. On the receiving side, the transmission control unit 9 receives this image, decompresses it, and outputs it as an intermediate format television signal with a normal aspect ratio of 3: 4.

This signal is subjected to variable-magnification processing on the left and right in the 9:16 system conversion processing section 12 and is given to the second monitor television 14 as a signal having an aspect ratio of 9:16, as shown in FIG. Is displayed in. Incidentally, the image actually displayed through the scaling processing by the 9:16 system conversion processing unit 12 has the same aspect ratio as the subject imaged by the first camera 1.

As described above, transmission is performed by optically changing the left / right ratio of the image captured by the first camera 1 on the transmission side in accordance with the aspect ratio of the monitor connected on the reception side. It is possible to efficiently perform this, and the receiving side can obtain an image signal suitable for the connected monitor.

Next, a fifth embodiment of the display control device of the present invention will be described. FIG. 11 is a block diagram of a display control device according to the fifth embodiment of the present invention. Note that FIG.
In FIG. 1, the same parts as those in FIG. 1 or corresponding parts are designated by the same reference numerals and the description thereof will be omitted. As shown in FIG. 11, in the fifth embodiment, the aspect ratio is 3: 4 on the transmitting side.
Only the first camera 1 that captures images is installed.

On the other hand, on the receiving side, the first monitor television 13 having an aspect ratio of 3: 4 or the second monitor television 14 having an aspect ratio of 9:16 is selectively connected. Has been done. Also in this case, whether the first monitor television 13 is connected or the second monitor television 14 is connected is set by the monitor setting switch 16, and this signal is transmitted from the system control unit 10 to the transmission control unit 9 to the line. 8, the data is transmitted to the system controller 6 on the transmitting side through the transmission controller 5.

By the way, the image processing unit 4 deletes the upper and lower regions of the image of the aspect ratio 3: 4 imaged by the first camera 1 under the control of the system control unit 6 to remove the aspect ratio 9. : Select the function to convert the image of 16 aspect ratio and then change the size of left and right to convert it to the image of aspect ratio 3: 4, or the function to output the image of aspect ratio 3: 4 as it is. To be done.

The operation of the above arrangement will be described with reference to the explanatory view of FIG. On the transmission side, the image captured by the first camera 1 is (A) in FIG.
As shown in, the television screen has an aspect ratio of 3: 4. On the other hand, on the receiving side, the first monitor television 13,
Alternatively, the second monitor television 14 is selectively connected for display. Which monitor is connected is input from the monitor setting switch 16.

Now, on the receiving side, the first monitor television 1
If 3 is connected, this is transmitted to the transmission side and input to the system control unit 6. As a result, the image processing unit 4 outputs the image from the first camera 1 to the transmission control unit 5 as it is as an image with an aspect ratio of 3: 4, as shown in FIG.

The output video from the image processing unit 4 is converted into an intermediate format for transmission by the transmission control unit 5, is compressed for transmission, and is transmitted to the receiving side through the line 8. On the receiving side, the transmission control unit 9 receives this image, decompresses it, and outputs it as an intermediate format television signal with a normal aspect ratio of 3: 4. This signal is displayed on the first monitor television 13 as it is, as shown in FIG.

On the other hand, when the second monitor television 14 is connected on the transmitting side, this is transmitted to the transmitting side and input to the system control unit 6. As a result, the image processing unit 4 deletes the upper and lower parts of the image from the first camera 1 and, as shown in FIG.
Convert to video.

Further, as shown in FIG. 12C, the left and right sizes are reduced and scaled to obtain an aspect ratio of 3: 4.
Convert to video. The output video from the image processing unit 4 as shown in FIG. 12E is converted into an intermediate format for transmission by the transmission control unit 5 and is compressed for transmission, and then is received by the receiving side through the line 8. Be transmitted to.

On the receiving side, this image is received by the transmission control unit 9 and decompressed, and the intermediate format is changed to a screen as shown in FIG. 12E with a normal aspect ratio of 3: 4. Output. This signal is subjected to scaling processing on the left and right in the 9:16 system conversion processing unit 12, and the aspect ratio is 9: 1.
The signal No. 6 is given to the second monitor television 14, and is displayed as shown in FIG.

As described above, by appropriately processing the image on the transmitting side according to the aspect ratio of the monitor connected to the receiving side, it becomes possible to efficiently perform the transmission, and the receiving side can An image signal suitable for the connected monitor can be obtained.

In each of Examples 2 to 5 described above, 9:
Although the configuration in which the 16-system conversion processing unit 12 is arranged immediately before the second monitor television 14 is illustrated, it is provided immediately after the output of the transmission control unit 9 and controlled by the system control unit 10 according to the state of the monitor setting switch 16. The image signal may be output as it is, or the aspect ratio may be converted and output, and the output end of the image signal can be unified.

Further, in each of the above-mentioned embodiments, the constitutions of the transmitting side and the receiving side are separately shown, but in an actual television conference system or the like, the constitutions of the transmitting side and the receiving side are combined. Needless to say.

Further, in the above-mentioned embodiment, the communication between the aspect ratio of 3: 4 and the aspect ratio of 9:16 has been exemplified, but the combination of the aspect ratio is free. Although the signal format of the second monitor television 14 having an aspect ratio of 9:16 is not specified in the above embodiment, even a high-definition television signal is a signal format for a landscape screen television. However, it may be freely selected depending on the configuration of the 9:16 system conversion processing unit 12.

Next, a sixth embodiment of the display control device of the present invention will be described. FIG. 13 is a block diagram showing an example in which the present invention is applied to a TV conference system. In FIG. 13, 1
01 is a high-definition monitor with an aspect ratio of 9:16, 102 is a non-interlaced VGA monitor capable of displaying a screen of IBM-PC, Macintosh, etc. 103 is a high-definition panoramic image showing the whole view of a video conference in detail It is a camera.

Reference numeral 104 denotes a first pan head for controlling the direction and up-down direction of the high-definition camera 3
Is a person camera, and because each participant in the conference needs a number of participants, the cost is high, and because it is relatively large to capture an individual, it is functional with a CCD camera for NTSC. Is enough for

Reference numeral 106 denotes a second pan head for controlling the person NTSC camera 105 so as to face the person who wants to take a picture. Reference numeral 107 is a video recorder compatible with the PAL video signal. Reference numeral 108 is a document camera that converts an image of a text original or a three-dimensional object into an electric signal. Reference numeral 109 is a speaker that converts a voice signal sent from the partner station into sound. 110 is an omnidirectional microphone that converts the sound of the conference room of the own station into an electric signal, 11
Reference numeral 1 is a speaker microphone A corresponding to each conference participant, and 112 is a speaker microphone B.

Reference numeral 113 displays an image drawn by the drawing tablet of the local station or the partner station, or displays a high-definition still image from the document camera 108 or the like. It is a still image display device for displaying the images of its own station and the partner station written on the digitizer of this device.

Reference numeral 114 is a G4 facsimile, and 115 is a personal computer for reading an electronic manuscript created by spreadsheet software or DTP software from a storage device (not shown) such as a hard disk or a magneto-optical storage device.
Reference numeral 116 is a liquid crystal panel and a digitizer body type drawing operation panel in which each speaker controls the operation of the apparatus and performs drawing.

Next, the internal structure of the TV conference device will be described. Reference numeral 118 denotes a video signal codec unit, which inputs a video video signal from the panoramic camera 103, the speaker camera 105, the document camera 108, and the video recording / reproducing device 107, and performs processing such as picture-in-picture and vertical composition, or various types. It is a circuit for discriminating a video signal, an encoder / decoder circuit, a circuit for combining a transmission video signal and a video signal of the human camera 105, and guiding them to a monitor.

Reference numeral 120 denotes an audio signal input / output unit which mixes audio signals from the omnidirectional microphone 110, the speaker microphone A111, and the speaker microphone 112 and guides the audio signal from the audio codec 121 to the speaker 109. Reference numeral 121 denotes a voice codec, which digitizes an input voice signal and converts it into a PCM (pulse code modulation) code, and further ADPCM (adaptive differential pulse).
code modulation) and the like. Also, it decodes the audio digital signal that is sent and converts it into an analog signal.

Reference numeral 123 denotes a video signal codec section 118,
Audio codec 121, digital data input / output unit 122
The digital data from the
In the T standard, it is multiplexed according to the H221 standard). Also,
Video data from the multiplexed data from the other station,
Separated into audio system and data system, the above video codec 19,
A data multiplexing coder / decoder that is distributed to the audio codec 121 and the data input / output unit 122. A control CPU 124 controls the operation of the present apparatus.

Reference numeral 125 denotes an ISDN (Integrated)
service digital network) CCU connected to line 126
(Communication control unit). An operation control signal line 127 sends various control signals from the control CPU 124 to the connecting device and each circuit unit. Reference numeral 131 denotes a liquid crystal display screen memory that stores screen information displayed on the drawing operation tablet. Reference numeral 129 is a unit section of the TV conference device.

FIG. 14 shows the configuration of the most characteristic video signal codec section of the present invention. In FIG. 14, reference numeral 40 is an image data exchange circuit for guiding an input video signal to a corresponding compression circuit in accordance with the discrimination result of the video signal discrimination circuit 42,
It is composed of analog switches (not shown).

Reference numeral 41 is a switch, 42 is a circuit for discriminating an input video signal, 43 is a CG compression circuit for compressing an image electrically created by a CG image or color DTP, and 44 is an NT.
SC signal standardized CIF (Common Int
ermediate format) conversion circuit, 45 is PAL
Circuit for converting video signal to CIF, 46 is CCIT
T Still image compression standard JPEG (Joint Photographic
Expert Group) is a still image compression encoder.

Reference numeral 47 is a method for dividing a high-definition screen area into a plurality of CIF image sizes for moving picture compression, or a high-definition moving picture encoder such as a sub-band method in which high-definition pixels are sub-sampled, filtered, and transmitted in order. Is. 48 is a video conference compression system CCIT
It is a moving picture encoder of the H261 system standardized by T. Reference numeral 49 is an image data mix circuit for packetizing the image data compressed by each image compression means in accordance with the input video signal.

Next, the receiving circuit system will be described. 5
Reference numeral 1 indicates that only the image data portion is separated from the image, voice, and data sent from the partner station by the data multiplexing coder / decoder unit 123, and further, the image data is identified by the compression code depending on the compression method. Is an image data separation circuit for reading out.

Reference numeral 52 is an image data distribution circuit for guiding the received image to the corresponding image data expansion circuit by the above image data identification code, and 53, 54, 55 and 56 are CG image expansion circuit, H261 decoder and still image, respectively. It is a compression decoder for HDTV and a high-definition video decoder.

Reference numeral 57 is a scan conversion circuit / composition circuit which formats the video signal in accordance with the output monitor and combines the screens in order to combine and display the image signals from a plurality of cameras. Also, the audio signal input / output unit 1
As shown in FIG. 15, the internal configuration of the amplifier 20 includes an amplifier 7
5, audio mixing circuit 76, switch circuit 77, audio level detection circuit 78 and the like.

Next, the operation of the display control device of this embodiment having the above-mentioned structure will be described. In the following description, the TV camera and the output device are configured as shown in FIG.
It is assumed that it is connected to the V conference apparatus 29.

FIG. 16 is a rear panel portion of a TV conference device 129 provided with an interface connector for connecting the input device and the output device of FIG. The video input terminal V1
Any type of image input camera may be connected to V5.

In this embodiment, as shown in FIG. 14, the image input terminal V1 is a panoramic high-definition camera 103, the image input terminal V2 is a person NTSC camera 106, and the image input terminal V.
3 is the output of the personal computer monitor 115 and the video input terminal V4
Is a document camera 108, and the video input terminal V5 is a PAL-
It is assumed that the VTR 107 is connected.

In this embodiment, the output device has two video output terminals V6 and V7 in FIG. 16, and the type of the monitor connected thereto is set in FIG. When the icon displayed on the liquid crystal screen is designated by the pointing pen 80 on the screen, the brightness of the designated icon changes and the user is informed of the designation.

If the type of the connected monitor cannot be judged from the outer shape or the like, if the search icon is designated by the pointing pen, the NTSC video signal, the PAL video signal, the high-definition video signal and the still image signal are sequentially output, The user can specify the search icon again with the pointing pen 80 when the image looks correct, and can output the video signal in a video signal format suitable for the monitor type.

Next, the operation of this embodiment will be described according to the operation flow of FIG. The TV conference device on the local station side is connected as shown in FIG. TV conference device 12
When the power of 9 is turned on, the control CPU 124 initializes the interfaces of various connections, and when the initialization is completed, the state of each external connection device is inspected (step S1).

The video signal codec section 118 controls the control CP.
The switch 41 is sequentially switched from the terminal 1 by a switching signal from the U124, and the video signal from each video input terminal is guided to the video signal discrimination circuit 42 to separate only the synchronizing signal portion of the video signal. The video signal discrimination circuit 42 of FIG.
As shown in FIG. 13, the time intervals of the horizontal and vertical sync signals are accurately investigated, the time intervals of the sync signals are associated with the signal format closest to the relationship in FIG.
It is sent to 124 (step S2).

Similarly, the switch 41 is moved to the position of the terminal 2 and the time of the vertical / horizontal synchronizing signal is measured to sequentially determine and send it to the control CPU 124. As a result, FIG.
Of the video signal input terminal on the rear panel of the TV conferencing device
A high-definition camera is connected to the input terminal V1 of
The second input terminal V2 is an NTSC camera, the third terminal V
3, the output signal from the personal computer, the fourth terminal V4 is the signal from the high-definition document camera, and the fifth terminal V5 is P.
It was determined that the AL signal was connected (step S
3).

Based on the result of this determination, the data exchange circuit 40
The input video signal of is led to the corresponding image compression encoder circuit (step S4). The video conference device of this embodiment includes:
Judge as either NTSC video signal, PAL video signal, high-definition video signal, video signal format for still image display, or non-interlaced signal from personal computer or workstation.

The determination method is as follows. Since the time intervals of the horizontal and vertical synchronizing signals of the input video signal are different depending on each of the above video signals, this is utilized in the present embodiment. The time interval between the horizontal and vertical signals of the generated video signal is accurately examined and judged.

This judgment result and the image data compressed by the compression means corresponding to the judgment result are arranged in the format of FIG. 21 and passed to the image data mix circuit 49 (step S5), and the compression means from each compression means. The compressed data and the judgment result are packetized and further packetized by the data multiplexing coder / decoder together with the voice and data and transmitted according to the line speed (step S6).

Next, in the receiving circuit system, the data multiplexing coder / decoder unit 123 separates only the image data portion from the image, voice and data sent from the partner station. Further, the image data separation circuit 51 reads out the image data by the identification code of the image depending on the compression method, controls the switch of the image data distribution circuit 52, and guides the received image to the corresponding image data expansion circuit.

The expansion circuit is the CG image expansion circuit 53, H2.
61 is a decompression circuit of a decoder 54, a still image compression decoder 55, and a high-definition video decoder 56. The received images decompressed by the decompression circuits 53 to 56 are displayed on a screen for formating a video signal according to the output monitor by the scan conversion circuit / composition circuit 57 or for compositing and displaying the image signals from a plurality of cameras. Synthesize. FIG. 19 is an example in which the composite image is displayed on a high-definition monitor.

In this embodiment, the TV conference device 1
The 29 has a built-in CCU125,
It does not change even if it is connected to the line 126 via a terminal adapter or the like to the outside. Moreover, as the other party device, the TV conference device 129 with few connection devices has been taken as an example, but only the video telephone and the still image are provided. There is a similar effect in displaying the status of the connection device of the communication device that handles the. As the aspect ratio conversion method, the methods described in the first to fifth embodiments may be applied.

[0116]

As described above, according to the present invention, when the video signals having different aspect ratios are exchanged between the systems connected through the transmission system, the aspect ratio of the image pickup system and the aspect ratio of the display system. By exchanging the transmission ratio between the transmission side and the reception side through the transmission system, it becomes possible to select an efficient signal form for transmission. As a result, it becomes possible to connect systems having different aspect ratios via a common intermediate format, so that various monitors can be selected.

Further, according to another feature of the present invention, even if the configuration of a high-definition camera or a conventional NTSC or PAL camera is changed, the type of the camera is automatically judged and the corresponding compression method is selected. Also, by adding the identification code when sending the image to the other party, it is possible to easily correspond to the expansion of the compressed image data on the receiving side, and the user can upgrade the image input device of the system. Can handle.

[Brief description of drawings]

FIG. 1 is a block diagram of a display control device according to a first embodiment of the present invention.

FIG. 2 is an operation explanatory diagram of the first embodiment.

FIG. 3 is an explanatory diagram of a transmission side of another operation example of the first embodiment.

FIG. 4 is an explanatory diagram of a receiving side in another operation example of the first embodiment.

FIG. 5 is a block diagram of a display control device according to a second embodiment of the present invention.

FIG. 6 is an operation explanatory diagram of the second embodiment.

FIG. 7 is a block diagram of a display control device according to a third embodiment of the present invention.

FIG. 8 is an operation explanatory diagram of the third embodiment.

FIG. 9 is a block diagram of a display control device according to a fourth embodiment of the present invention.

FIG. 10 is an operation explanatory diagram of the fourth embodiment.

FIG. 11 is a block diagram of a display control device according to a fifth embodiment of the present invention.

FIG. 12 is an operation explanatory diagram of the fifth embodiment.

FIG. 13 is a block diagram showing a configuration of a video conference system according to a sixth embodiment of the present invention.

FIG. 14 is a block diagram showing an example of a video codec.

FIG. 15 is a configuration diagram of the inside of a voice input / output unit of a sixth embodiment.

FIG. 16 is a rear panel view of the video conference device of the present embodiment.

FIG. 17 is a diagram of a drawing operation tablet screen when a monitor is designated.

FIG. 18 is a diagram showing an example of a video signal discrimination circuit.

FIG. 19 is a diagram showing a display example in which images from a plurality of cameras are combined and output on a high-definition monitor screen.

FIG. 20 is an operation flowchart showing the operation of this embodiment.

FIG. 21 is a diagram showing a video signal format discrimination circuit and an example of a compressed image packetization format.

[Explanation of symbols]

 1 1st camera 2 2nd camera 3 Image selector 4 Image processing unit 5 Transmission control unit 6 System control unit 7 Camera switching operation unit 8 Line 9 Transmission control unit 10 System control unit 11 Camera switching operation unit 12 9:16 system Conversion processing unit 13 First monitor TV 14 Second monitor TV 15 3: 4 system conversion processing unit 16 Monitor setting switch 17 Field angle switching optical system

Claims (28)

[Claims] 1. A first imaging means for imaging with a first aspect ratio, a second imaging means for imaging with a second aspect ratio, and an image with the first aspect ratio. First monitor means for displaying, second monitor means for displaying an image with the second aspect ratio, switching means for switching between the first imaging means and the second imaging means, and the switching Image processing means for performing a predetermined process on the image captured by the first image capturing means or the image captured by the second image capturing means in accordance with the selection state of the means. When the state of the switching means selects the first image pickup means, the image of the first aspect ratio is displayed on the first monitor means, and the first monitor means displays the first aspect ratio image on the second monitor means. Blanks are added to the top and bottom or left and right image parts of the image signal of the aspect ratio Alternatively, by deleting the image, it is converted into an image having the second aspect ratio and displayed, and when the state of the switching means selects the second image pickup means, the second monitor is displayed on the first monitor means. A blank is added to or deleted from the upper and lower or left and right image portions of the image signal of the aspect ratio of 1 to be displayed after being converted into the image of the first aspect ratio and displayed on the second monitor means. A display control device characterized by displaying an image of the aspect ratio of. 2. When the image processing means displays an image of the first aspect ratio on the second monitor means, processing for adding a non-signal area to the left and right of the screen is performed. The display control device according to claim 1, wherein: 3. When the image processing means displays an image of the second aspect ratio on the first monitor means, processing for adding a no-signal area to the top and bottom of the screen is performed. The display control device according to claim 1, wherein: 4. When the image processing means displays an image of the first aspect ratio on the second monitor means, processing for deleting the top and bottom of the screen is performed. The display control device according to claim 1. 5. When the image processing means displays an image of the first aspect ratio on the first monitor means, processing for deleting the left and right areas of the screen is performed. The display control device according to claim 1, wherein the display control device is a display control device. 6. A first imaging means for imaging with a first aspect ratio, a second imaging means for imaging with a second aspect ratio, and a captured image with a second aspect ratio. Aspect ratio conversion means for scaling the vertical or horizontal direction to convert to a first aspect ratio, first monitor means for displaying an image at the first aspect ratio, and second aspect ratio. Second monitor means for displaying an image at an image ratio, a switching means for switching the first image pickup means and the second image pickup means, and an image picked up by the first image pickup means according to a selection state of the switching means. Image processing means for performing a predetermined process on the captured image or the image captured by the second imaging means, and the state of the switching means selects the first imaging means by the action of the image processing means. The first monitor means, the first aspect ratio is While displaying the image, the second monitor means converts the image signal of the first aspect ratio into the image of the second aspect ratio by adding or deleting blanks in the upper and lower or left and right image portions. If the second image pickup means is selected as the state of the switching means, the image of the first aspect ratio is changed to the image of the second aspect ratio by vertical or horizontal scaling. After returning, the first monitor means converts the image signal of the second aspect ratio to the image of the first aspect ratio by adding or deleting blanks in the upper and lower or left and right image portions, and displays it. The display control device is characterized in that an image of a second aspect ratio is displayed on the second monitor means. 7. When the image processing means displays an image of the first aspect ratio on the second monitor means,
7. The display control device according to claim 6, wherein processing for adding a non-signal area to the left and right of the screen is performed. 8. When the image processing means displays an image of the second aspect ratio on the first monitor means,
7. The display control device according to claim 6, wherein processing for adding a no-signal area to the top and bottom of the screen is performed. 9. When the image processing means displays an image of the first aspect ratio on the second monitor means,
7. The display control device according to claim 6, wherein processing for deleting the top and bottom of the screen is performed. 10. The image processing means is adapted to perform processing for deleting the left and right areas of the screen when displaying the image of the first aspect ratio on the first monitor means. The display control device according to claim 6. 11. A communication system in which the first image pickup means and the second image pickup means are arranged on the transmission side, and the first monitor means and the second monitor means are arranged on the reception side. Claims 1 to 1 characterized in that
0. The display control device according to any one of 0. 12. The display control device according to claim 11, wherein the switching means is controlled from the receiving side. 13. The display control device according to claim 11, wherein the switching means is controlled on the transmission side. 14. An image pickup means for outputting an image pickup signal having a first aspect ratio or an image pickup signal having a second aspect ratio, and a first monitor means for displaying an image with the first aspect ratio. And an aspect ratio setting means for setting which of the second monitor means for displaying an image at the second aspect ratio is used, and the first aspect ratio in the aspect ratio setting means. When the monitor means is set, the image signal of the first aspect ratio is extracted from the image pickup means, and the second aspect ratio monitor means is set by the aspect ratio setting means. A display control device, comprising: an image pickup aspect ratio switching means for extracting an image signal having a second aspect ratio from the image pickup means when the image pickup means is present. 15. The display control device according to claim 14, wherein the image pickup means optically switches the image pickup aspect ratio. 16. The display control device according to claim 14, wherein the image pickup means electrically switches the image pickup aspect ratio. 17. The image pickup means optically picks up an image with a second aspect ratio, electrically deletes the left and right regions of the picked-up image, and converts it into an image signal having a first aspect ratio. The display control device according to claim 16, wherein: 18. The image pickup means optically picks up an image with a first aspect ratio, electrically deletes upper and lower regions of a picked-up image, and converts it into an image signal of a second aspect ratio. The display control device according to claim 16, wherein: 19. The image pickup means includes an image pickup section having a first aspect ratio and an image pickup section having a second aspect ratio, and switching respective outputs to obtain an image signal having a first aspect ratio or 15. The display control device according to claim 14, wherein the image signal having the second aspect ratio is switched and output. 20. The image pickup means is incorporated in a transmission side,
20. The display control device according to claim 14, wherein the first monitor means and the second monitor means are incorporated in a communication system arranged on the receiving side. 21. The display control device according to claim 20, wherein the aspect ratio setting means is set on the receiving side. 22. A discriminating circuit for discriminating the type of the video signal from the connected image input means, and a compression method of the video signal from the image input means is switched according to the discrimination result of the discriminating circuit. Display control device. 23. In the above-mentioned claim 22, the discrimination result of the own station device side is transmitted to a communication partner side, and the partner station guides the compressed image transmitted according to the transmitted discrimination result to a corresponding decompression circuit to make a predetermined result. And displays the expanded image on the corresponding display control means, and, on the other hand, in its own station, performs the same processing as the other station according to the determination result from the other station and displays the corresponding image. A display control device, characterized in that the display control device is arranged so as to be displayed by means. 24. A plurality of video cameras, a discriminating circuit for discriminating the types of video signals derived from the plurality of video cameras, and a synthesizing means for synthesizing given images are provided. The result is transmitted to the communication partner side, and the partner station guides the compressed image transmitted according to the transmitted discrimination result to the decompression circuit to perform decompression processing, and synthesizes the decompressed image with the synthesizing means. , This composite image is guided to a display unit and displayed, and on the other hand, in its own station, while decompressing the compressed image sent from the partner station according to the above-mentioned discrimination result from the partner station
A display control device characterized in that the above-mentioned combination image is combined by the above-mentioned combination means and the combined image is guided to the display means for display. 25. The compressed image data from the corresponding camera is transmitted to a communication line according to the camera selection signal from the partner station, which is determined according to the camera discrimination signal information transmitted from the own station. A display control device characterized in that 26. In the above-mentioned 23 or 24,
The timing of transmitting the discrimination result to the partner station is characterized in that the information of the type of the transmission video signal is transmitted for each frame of the image to be transmitted prior to the compressed image data of the frame. Control device. 27. The above-mentioned claim 23 or 24,
As for the timing of transmitting the determination result to the partner station, information indicating the type of the transmission video signal for each intra-frame compressed data of the image to be transmitted is set to be transmitted prior to the compressed image data of the frame. Characteristic display control device. 28. The display control device according to claim 22, wherein the image input means is a video camera.