JP2001313917A - Network meeting image processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a meeting with natural interaction while facilitating configuration, and realizing coincident of a sight line correspondent to movement of a viewpoint, and enhancing picture image quality furthermore and obtaining natural image quality. SOLUTION: A network meeting image processor has video cameras 2a and 2b, a display device 3, an image processing part 4, an image synthesizing part 5, a viewpoint detecting part 6, an image display processing part 7, an image preparation part 8, a display control part 9 and a transmission channel 10. Image information, viewpoint information and image control information are transmitted between other network meeting image processors, a photographing position and a photographing region of an image transmitted using this information corresponding to position change of the meeting person's viewpoint are changed, and the sight line is made coincidence corresponding to the movement of the meeting person's viewpoint.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a network conference image processing apparatus for performing a conference by transmitting image / audio data over a communication network using a video camera and a display device with a remote place, and more particularly to a screen image processing apparatus. The present invention relates to a network conference image processing apparatus in which the lines of sight at the time of conversation with a conferee match (eye contact).

[0002]

2. Description of the Related Art Conventionally, in a network conference image processing apparatus of this kind, control is performed so that a face-to-face conference can be faced and an eye contact can be performed. 195,945 gazette). In a device that performs such control, a video camera is arranged on the back of the display device so that the line of sight of the conferee facing the display device matches the line of sight of the conferee displayed on the display device.

[0003] In this device, since a conferee facing the display device is photographed by a video camera from the back side of the display device, it is necessary to transmit the image light of the conferee through the display device with the video camera. Requires a display device without Also, a half mirror or the like is provided on the front surface of the display device so that the conferee can view the image on the display device, and the conferee on the entire display device is provided with a half mirror, a light refraction device (prism), and the like. It is necessary to shoot with a video camera provided on the back of the display device
Its configuration is complicated.

Further, the output images of two video cameras arranged on both sides of the display device are processed so that the line of sight of the conferee facing the display device matches the line of sight of the conferee displayed on the display device. There is an example of controlling (for example, Japanese Patent Application Laid-Open No. 2-58484). In this device, output images of two video cameras are processed, and complicated image processing is required, the image quality is deteriorated, and it is difficult to obtain a natural image.

Japanese Patent Laid-Open Publication No. Hei 6 (1994) -64131 discloses an example in which control is performed so that the line of sight of the conferee facing the display device matches the line of sight of the conferee displayed on the display device.
An example disclosed in Japanese Unexamined Patent Publication No. 90445 / “video input / output device” is well known.

In the conventional example of Japanese Patent Application Laid-Open No. 6-90445, the eyes of the videophone user are forcibly matched. In addition, an image captured by two video cameras is generated in a three-dimensional shape, and this is rendered and linked to generate an image.
In the conventional example of this publication, the viewpoint position cannot be detected in the display image accompanying the movement of the viewpoint, so that it is difficult to perform a meeting based on more natural gaze matching.

[0007]

As described above, in the above conventional example, the configuration is complicated, the image quality is deteriorated, and it is difficult to obtain a natural image quality. Further, there is a drawback that a conference cannot be held by natural conversation based on eye-gaze matching corresponding to movement of the viewpoint (position change).

The present invention solves the above-mentioned problems in the prior art, and uses a conventional video camera and a display device to facilitate the configuration and to provide a conferee who can move the viewpoint. It is an object of the present invention to provide a network conference image processing apparatus capable of performing visual line matching between images, improving image quality, and enabling a conference with natural image quality.

[0009]

In order to achieve the above object, a network conference image processing apparatus according to the present invention transmits a photographed image and a conversational voice, and has a meeting facing a display image. Between another network conference image processing apparatus, image information that is two-dimensional information displayed on the display screen, viewpoint information that is information indicating the viewpoint position of the image information on the image, Image conference information processing means for transmitting image position, size, and image control information which is information indicating a photographing area in a three-dimensional space of image information, wherein the conference image processing means performs photographing from at least two viewpoints. In the case where the photographing position and the photographing range of the image are changed by processing an image and generating an arbitrary image photographed from a different viewpoint from the two viewpoints, the different viewpoint is It is constituted to be changed according to the position change of the conference's perspective by point information.

[0010] Further, as the conference image processing means, a photographing section for outputting image information of the conference person from a plurality of photographing positions, and processing the image information from the photographing section to synthesize a three-dimensional image of the conference person. An image synthesizing unit for transmitting the three-dimensional image information to another network conference image processing device via a transmission line, and viewpoint information obtained by detecting the viewpoint of the conferee from the three-dimensional image from the image synthesizing unit is transmitted to another network conference image via the transmission line. A viewpoint detection unit to be sent to the processing device, and an image creation to send a three-dimensional image from the image synthesizing unit from an arbitrary shooting position and send the generated image information to another network conference image processing device through a transmission path. And an image signal for determining the display position of the image in the image information received via the transmission path, and an image for operation processing in the image creation unit and the image display processing unit. It is constituted and a reception processing unit for transmitting and receiving control information.

In the image synthesizing section, a three-dimensional image is created by image processing of only the features of the image of the face of the conferee, and in the viewpoint detecting section, the viewpoint position in the three-dimensional image created by the image synthesizing section is determined. Detected from the three-dimensional image and the original captured image, and the image creating unit processes the captured position in conjunction with viewpoint information received from another network conference image processing apparatus.

[0012] Further, as the reception processing section, an image display section for displaying an image of the conferee, and an image display processing section for outputting an image signal, which has determined the display position of the image in the image information received through the transmission path, to the image display section. And a display control unit for receiving and transmitting image control information for operation processing in the image creation unit and the image display processing unit.

In addition, the apparatus further includes a communication control device for transmitting and receiving image information, viewpoint information, and image control information to and from another network conference image processing device via a transmission path. And a communication control device for transmitting and receiving image information, viewpoint information, and image control information through a communication network.

The network conferencing image processing apparatus of the present invention uses a conventional (for example, commercially available) video camera and display device to change the photographing position and photographing range of the image, thereby moving the viewpoint of the conferee. Is achieved. Therefore, no special video camera or display device is required, and the configuration is easy.

Further, as a change in the photographing position and photographing range of the image, for example, an image photographed from two viewpoints is processed, and an arbitrary image when photographed from a viewpoint different from the two viewpoints is generated. This allows the conference participants to talk with each other. Therefore, gaze matching corresponding to the movement of the viewpoint of the conferee becomes possible, and the conference by the natural conversation becomes possible.

Further, at the time of image synthesis, a three-dimensional image is created by minimal image processing of only the features of the face image of the conferee. Therefore, the image quality is improved without deteriorating the image quality, and a conference with natural image quality can be performed.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a network conference image processing apparatus according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a network conference image processing apparatus according to an embodiment of the present invention. In FIG. 1, the network conference image processing apparatus includes image information S101a, S101 taken mainly of a conferee M to be photographed.
Video cameras 2a and 2b respectively outputting 101b
, A display device 3 for displaying an image of an image signal S112 received from another network conference image processing device (not shown) through the transmission path 10, and an image processing unit 4.

In FIG. 1, a network conference system using a plurality of network conference image processing apparatuses is constructed. Such a network conferencing system holds a conference via a communication network such as a public line or a dedicated line (high-speed digital line such as ISDN) or a private line (for example, a local area network) built in a business office of a company. . This network conference system transmits and receives image data and audio data. Here, the processing of the audio data is performed using known means.

A communication control unit (for example, a digital termination unit (DSU), a terminal adapter (TA), a network communication unit (NCU), etc.) for executing communication control according to a communication protocol (protocol) with a communication network,
A modulation / demodulation device for processing modulation and demodulation of image data and audio data, and a compression processing unit for performing band compression encoding processing when ISDN is used are also performed by using known means.

In FIG. 1, image processing section 4 includes image information S101a, S101b from video cameras 2a, 2b.
To the other network conference image processing apparatus (similar configuration as in FIG. 1) (not shown) through the transmission path 10 to output the viewpoint information signal S106 and the image information signal S described in detail later.
107 and an image control information signal S108. The image processing unit 4 further includes a viewpoint information signal S109 and an image information signal S1, which will be described in detail after being received from another network conference image processing apparatus (not shown) through the transmission path 10.
11. Process the image control information signal S110 and send the image signal S112 to the display device 3.

The internal configuration of the image processing section 4 shown in FIG. 1 includes image information S101 from the video cameras 2a and 2b.
a and S101b to process the three-dimensional image information signal S102.
, And a viewpoint detecting unit 6. The viewpoint detecting unit 6 processes the three-dimensional image information signal S102 from the image synthesizing unit 5 to detect the viewpoint position, and based on the photographing position information signal S104, the viewpoint position on the image photographed at the photographing position. Viewpoint information signal S calculated from
106 is transmitted to another network conference image processing apparatus (not shown) through the transmission path 10.

The image processing section 4 processes the image information signal S111 received through the transmission path 10 based on the image arrangement information signal S105, and sends the image signal S112 having the determined display position of the image to the display device 3. The photographing position and the photographing range of the image are calculated based on the image display processing unit 7 to be output, the image attribute information signal S103 and the viewpoint information signal S109, and the three-dimensional image information signal S102 is photographed from the calculated photographing position. And an image generating unit 8 that generates the image information signal S107 and transmits the image information signal S107 to another network conference image processing device (not shown) via the transmission line 10.

Further, the image processing unit 4 includes a transmission line 10
The image control information signal S110 received through
Image attribute information signal S1 for processing operation of image creating section 8
03, and outputs an image arrangement information signal S105 for managing an image display position, and transmits an image control information signal S108 to another network conference image processing device (not shown) via the transmission line 10. Part 9
And

The three-dimensional image information signal S102 is image information representing a state where two two-dimensional images are arranged in a three-dimensional space. The image attribute information signal S103 includes an image position on the screen of the display device 3 and an image position and size (screen size) on the display device screen of another network conference image processing device (not shown) transmitted from this device. ). Further, the photographing position information signal S104 is information of a photographing position and a photographing range used by the image creating unit 8.

The image arrangement information signal S105 is information indicating the position of a display image on the screen of the display device 3. The viewpoint information signal S106 is the image information signal S107
Is information indicating the viewpoint position on the image. Further, the image information signal S107 is two-dimensional information displayed on the screen of a display device of another network conference image processing device (not shown) via the transmission path 10. The image control information signal S108 is information indicating an image position and a size on the screen of the display device 3 and a shooting area of the image information signal S107 in a three-dimensional space.

The viewpoint information signal S109 is information indicating the viewpoint position on the image in the image information signal S111. The image control information signal S110 is information indicating an image position and a size on a screen of a display device of another network conference image processing device (not shown) through the transmission path 10 and a shooting area in a three-dimensional space in the image information signal S111. It is. The image information signal S111 is two-dimensional image information transmitted by another network conference image processing device (not shown) on the transmission path 10.

Next, the operation of this embodiment will be described. FIG. 2 is a flowchart showing a processing procedure of the transmission operation, and FIG. 3 is a flowchart showing a processing procedure of the reception operation. FIG. 4 is a top view showing a state in which the conferee M is photographed by the video cameras 2a and 2b, and FIG. 5 is a diagram showing an image in the photographing state in FIG. FIG. 6 is a diagram for explaining a state in which the three-dimensional image information signal S102 created by the image synthesizing unit 5 is superimposed on the captured image in FIG. 4, and FIG. Video camera 2a, 2
It is a figure for explaining the state where it looked at from the middle position of b.

FIG. 8 is a diagram for explaining a state transition when two network conference image processing apparatuses A and B (hereinafter, appropriately referred to as a left apparatus and a right apparatus) shown in FIG. FIG. In the left and right devices A and B in FIG. 8A, the image display portions 11a and 11b
This is a display screen portion of the display device 3. Here, it is assumed that the conferee M uses the left and right devices A and B to hold a conference by conversation. Basic viewpoint position 12 here
a and 12b are viewpoint positions when the conferee M looks at the center of the image display portion from the front. Further, the viewpoints 13a,
13b indicates the center of the viewpoint of the conferee M.

FIG. 8A shows an initial operation state.
(B) shows a state in which the conferee M using the left device A has a viewpoint that matches the viewpoint with the basic viewpoint position 12a. FIG.
(C) is a state in which the image of the conferee M of the left device A in the state of FIG. 8 (b) is displayed on the image display portion 11b,
This shows a state in which the conferee M of the right device B has moved the viewpoint from the basic viewpoint position 12b by y2 in the Y-axis direction. Furthermore,
FIG. 8D shows a state in which the image of the conferee M of the right device B in the state of FIG. 8C is displayed on the image display portion 11a.
2A shows a state where the viewpoint is matched.

FIG. 8E shows a state in which the image of the conferee M of the left device A in the state of FIG. 8D is displayed on the image display portion 11b. It shows a state in which it has moved in the Y-axis direction only from the basic viewpoint position 12b. FIG. 8F shows a state in which the image of the conferee M of the right device B in the state of FIG. 8E is displayed on the image display portion 11a. Represents a state moved in the Y-axis direction by y1. FIG. 8 (g) shows a state in which the image of the conferee M of the left device A in the state of FIG. 8 (f) is displayed on the image display portion 11b. 12A shows a state in which the movement has been made in the Y-axis direction by y2 from 12a.

Hereinafter, the transmission operation will be described with reference to FIG. First, the image processing unit 4 is set to an initial state (Step S1). This initial state is shown in FIG. In FIG. 8A in this initial state, the basic viewpoint positions 12a and 12b are measured by the image processing unit 4, and the basic viewpoint positions 12a and 1b are measured.
The coordinate values Cx, Cy, Cz of 2b are stored. At the same time, when the basic viewpoint positions 12a and 12b are centered, the extent of an image that can be photographed is measured. This value is stored as the photographing range Ly, Lz.

In FIG. 8A, the Z-axis direction is not shown, and only Ly is shown. The image processing section 4 also stores the actual sizes (image sizes) Wy and Wz of the image display portions 11a and 11b at the same time. In addition, the front face of the conferee M using the network conference image processing devices A and B (the left device A and the right device B) is photographed, and the image information S101a and S101b are stored in a memory (not shown) by the image synthesizing unit 5. Remember.

Next, this initial state is transmitted, for example, from the left device A to the right device B (step S2). The transmission information includes the actual sizes (image sizes) Wy and Wz of the image display portions 11a and 11b, the coordinate values Cx, Cy and Cz of the basic viewpoint positions 12a and 12b, and the photographing ranges Ly and Lz. Next, the conferee M is photographed (step S3).

The conferee M is photographed by the video cameras 2a and 2b, and the image information S101a and S101b are
Is input to Next, an image portion of the face of the conferee M is detected (step S4). This detection is performed by the image synthesis unit 5,
The correlation between the front face image of the conferee M photographed at the time of the initial state setting and the image information of the image information S101a and S101b is detected, and the image portion of the face of the conferee M in the image information S101a and S101b is detected. To detect.

Next, a three-dimensional image is created by the image synthesizing unit 5 (step S5). First, the image synthesizing unit 5 compares the two images that have detected the image portion of the face of the conferee M, detects a portion that captures the same point, and outputs the video camera 2a, 2b
The three-dimensional position of the conferee M photographed based on the position information is specified. Further, as shown in FIGS. 6 and 7, a plane which is in contact with the surface of the face of the conferee M and whose vertical line is a straight line connecting the video cameras 2a and 2b and the face of the conferee M is obtained. Images 113a and 113b are set on this plane. The three-dimensional image information created in this way is output from the image synthesizing unit 5 to the viewpoint detecting unit 6 and the image creating unit 8 as a three-dimensional image information signal S102. As another embodiment, as shown in FIG. 9 and FIG. 10, a plane having a perpendicular line connecting the video cameras 2a and 2b and the face of the conference
Image 1 on a curved surface combining semi-cylindrical cylinders in contact with the face of the face
13a and 113b may be set.

Next, the image creating section 8 creates a transmission image (step S6). After receiving the initial information of the three-dimensional image information signal S102, the image creating unit 8 generates an image photographed from a certain position. This photographing position is the viewpoint position on the image of the conferee M of the right device B displayed on the image display portion of the display device 3 of the left device A (this operation will be described later with reference to FIG. Step S12).

Next, the viewpoint detecting section 6 detects a viewpoint position (step S7). The viewpoint detecting unit 6 detects the position of the eyes from the face image in the three-dimensional image information signal S102 from the image synthesizing unit 5, and specifies the viewpoint position. Based on the viewpoint position information in the three-dimensional image information signal S102 and the photographing position information signal S104, the viewpoint information in the image information signal S107 is calculated, and the viewpoint information signal S106 is transmitted to the right side device B. Along with this transmission, an image information signal S107 and an image control information signal S10, which are state and image information, are transmitted.
8 is transmitted to the right side device B (step S8). Thereafter, the process returns to step S2 in FIG. 2 to repeatedly execute the above-described processing.

Next, the receiving operation will be described with reference to FIG. The image processing unit 4 shown in FIG. 1 receives the initial information by the processing of the above step S1 through the transmission path 10 from another network conference image processing device (not shown), and then receives the information (steps S11 and S12). This information content is the same as the information transmitted in step S8 of FIG. That is, the viewpoint information signal S106 and the image information signal S
107 and an image control information signal S108.

Next, the image display processing section 7 extracts image information from the information received through the transmission line 10, and sends out the image signal S112 to the display device 3 to display an image (step S13). Next, the display control unit 9 takes in and updates the image control information signal S110 other than the image information in the information received by the image display processing unit 7 through the transmission path 10. Further, the image creating unit 8 acquires and updates the viewpoint information signal S109 (step S14). Thereafter, the process returns to step S12 to repeatedly execute the above-described processing.

Hereinafter, the operation of the image creating section 8 will be described in detail with reference to FIG. In FIG. 8B, the viewpoint 13a of the left device A is located at the basic viewpoint position 12a. Furthermore,
When the right side device B is in the initial state, an image is created such that the center of the image display portion 11a is a shooting position and its viewpoint is at the center of the image. This information is transmitted to the right side device B in FIG. In the right device B, the viewpoint 13b has moved from the basic viewpoint position 12b. Since the viewpoint 13a is located at the basic viewpoint position 12a in FIG. 8B, the shooting position is the center of the image display portion 11b.

Next, the image creating section 8 calculates a photographing range. In this calculation, first, the viewpoint 13b and the basic viewpoint position 12
b is calculated. Next, as shown in FIG. 8D, based on the position and size of the image display portion 11a of the left device A and information on the basic viewpoint position 12a, an image displayed on the basic viewpoint position 12a and the image display portion 11a. The viewpoint position y2a at which the angle between the upper viewpoint and the viewpoint is θ is calculated.

The photographing range is determined so that the viewpoint position on the display image in the image display portion 11a is y2a. Specifically, as shown in FIG.
Photographing is performed so that the ratio between the actual size (image size) W1y of a and 11b and the viewpoint position y2a is equal to the ratio of the photographing range L2y to the distance V2y between the viewpoint 13b and the center line shown in FIG. The range is determined. In FIG. 8D, the viewpoint 13
Although a is located at the basic viewpoint position 12a, it moves from the center of the viewpoint position on the image display portion 11a to the viewpoint position y2a, and this viewpoint position y2a becomes the shooting position. The shooting range is set so that the viewpoint 13a is centered.

In FIG. 8 (e), the viewpoint 13b is shown in FIG.
In the same position as Since the position of the viewpoint on the image displayed on the image display portion 11b does not change, the shooting position,
The photographing range is the same as in the case of FIG. FIG. 8 (f)
In, the viewpoint 13a has moved from the basic viewpoint position 12a. Therefore, as in the case of FIG.
An angle ψ between the image and the basic viewpoint position 12a is obtained, and the viewpoint position y1a is calculated based on the information of the right side device B to set the photographing range.

In FIG. 8E, the photographing position remains at the viewpoint position y2a because the viewpoint 13b has not changed. FIG.
In (g), the viewpoint 13b has not changed. However, since the shooting position has moved to the viewpoint position y1a, the actual size (image size) W1y of the image display portions 11a and 11b.
8 is the ratio between the shooting range L2y and the viewpoint position y2a.
The photographing range changes so as to be equal to the ratio of the distance V2y between the viewpoint 13b and the center line shown in (c).

[0045]

As is apparent from the above description, according to the network conference image processing apparatus of the present invention, for example, using a commercially available video camera and display device,
The photographing position and the photographing range of the image are changed to achieve eye-gaze matching corresponding to the movement of the viewpoint. As a result, the configuration can be easily made.

Further, as a change in the photographing position and photographing range of the image, for example, an image photographed from two viewpoints is processed, and an arbitrary image when photographed from a viewpoint different from these two viewpoints is generated. This allows the conference participants to talk with each other. As a result, gaze matching corresponding to the movement of the viewpoint becomes possible, and a conference can be held by the natural conversation.

Further, at the time of image synthesis, a three-dimensional image is created by minimum image processing of only the features of the face image of the conferee. As a result, the image quality is improved without deteriorating the image quality, and a conference with natural image quality can be performed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a network conference image processing apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating a processing procedure of a transmission operation in the embodiment.

FIG. 3 is a flowchart illustrating a processing procedure of a receiving operation in the embodiment.

FIG. 4 is a top view showing a state of photographing a conferee in the embodiment.

FIG. 5 is a diagram illustrating an image in a shooting state according to the embodiment.

FIG. 6 is a diagram illustrating a state in which a three-dimensional image information signal is superimposed on a captured image in the embodiment.

FIG. 7 is a diagram illustrating a state in which the three-dimensional image information signal is viewed from an intermediate position of the video camera in the embodiment.

FIG. 8 is a diagram for explaining a state transition when two network conference image processing apparatuses are connected via a transmission line in the embodiment.

FIG. 9 is a diagram for explaining a state in which a three-dimensional image information signal is superimposed on a captured image in another embodiment.

FIG. 10 is a diagram illustrating a state in which a three-dimensional image information signal is viewed from an intermediate position of a video camera in another embodiment.

[Explanation of symbols]

 2a, 2b Video camera 3 Display device 4 Image processing unit 5 Image synthesis unit 6 View point detection unit 7 Image display processing unit 8 Image creation unit 9 Display control unit 10 Transmission path S101a, S101b, S112 Image information S102 Three-dimensional image information signal S103 Image attribute information signal S104 Shooting position information signal S105 Image arrangement information signal S106, S109 Viewpoint information signal S107, S111 Image information signal S108, S110 Image control information signal M Conference person

Claims (7)

[Claims] 1. transmitting a photographed image and a conversation voice, and
In a network conference image processing apparatus for holding a conference facing a display image, between another network conference image processing apparatus, image information that is two-dimensional information displayed on a display screen, Conference image processing for transmitting viewpoint information, which is information indicating a viewpoint position on an image, and image control information, which is information indicating an image position, size, and a shooting area of the image information in a three-dimensional space, on a display screen. The conference image processing means processes an image taken from at least two viewpoints, and generates an arbitrary image taken from a viewpoint different from the two viewpoints, thereby setting a photographing position and a photographing range of the image. In the case of changing, the another viewpoint is
A network conference image processing apparatus, wherein the viewpoint information is changed in accordance with a change in the position of the viewpoint of a conference participant according to the viewpoint information. 2. An image capturing unit that outputs image information of a conference attendant from a plurality of image capturing positions as the conference image processing unit, and a three-dimensional image of the conference attendee is processed by processing image information from the image capturing unit. An image synthesizing unit that sends the obtained three-dimensional image information to another network conference image processing apparatus via a transmission path, and viewpoint information that detects the viewpoint of the conferee from the three-dimensional image from the image synthesizing unit. A viewpoint detecting unit that sends the three-dimensional image from the image synthesizing unit to the network conference image processing apparatus from an arbitrary shooting position, and generates image information into an image via a transmission path. An image generating unit for transmitting the image signal to the image information received through the transmission path, and outputting an image signal which determines the display position of the image. Network conference image processing apparatus according to claim 1, wherein the reception processing unit that receives the image control information transmitted by, further comprising a for operation processing. 3. The network conference image processing apparatus according to claim 2, wherein the image synthesizing unit creates a three-dimensional image by performing image processing of only features of the image of the face of the conferee. 4. The viewpoint detecting unit according to claim 2, wherein the viewpoint detecting unit detects a viewpoint position in the three-dimensional image created by the image synthesizing unit from the three-dimensional image and a captured image based on the three-dimensional image. Network conference image processing device. 5. The network conference image processing apparatus according to claim 2, wherein the image creation unit processes the shooting position in conjunction with viewpoint information received from another network conference image processing apparatus. 6. An image display unit for displaying an image of a conferee as said reception processing unit, and an image display process for outputting an image signal which determines a display position of an image in image information received via a transmission path to said image display unit. 3. A network conference image processing apparatus according to claim 2, comprising: a unit; and a display control unit configured to receive and transmit image control information for operation processing in the image creation unit and the image display processing unit. . 7. The network according to claim 1, further comprising a communication control device for transmitting / receiving image information, viewpoint information, and image control information to / from another network conference image processing device via a transmission path. Conference image processing device.