JP2003259322A - Image display method, display apparatus, and two-way interactive system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image display method or the like capable of obtaining a desired display image of an object without affected by the motion of the photographed object. <P>SOLUTION: The image displaying method captures a wide angle image (800) of an object photographed in a state of including a background, segments prescribed area smaller than the size of the wide angle image (800) in the wide angle image (800) and including at least part of the object to produce a display image (500a), and displays the display image (500a) on a monitor screen (8) of a display section (21). <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display method, a display device and the like applicable to a two-way interactive system for realizing a remote dialogue via a display device connected by a predetermined transmission means. .

[0002]

2. Description of the Related Art In recent years, a two-way interactive system has been constructed which realizes a remote dialog for transmitting and receiving text data and video data between remote sites via transmission means such as English conversation learning and counseling. In such a remote dialogue, not only the exchange of text data and the image of the other party's interlocutor, but also the more intimate contact in the state where the interlocutors indirectly see each other through the image of the other party's interlocutor is displayed. As a system for realizing a dialogue environment, for example, Japanese Patent No. 307467
No. 7 proposes a two-way interactive system that enables remote communication while keeping the line of sight.

[0003]

As a result of examining conventional display methods, the inventors have found the following problems.
That is, in the conventional two-way interactive system that realizes remote interaction, in a state where it overlaps with a part of the image of the other party's interlocutor displayed on the display unit such as a monitor (for example, the head above the eyes), CCD for imaging an interlocutor located in front of the display unit
A camera etc. are arranged. Since the installation position of this imaging unit is substantially fixed except for fine adjustments such as the imaging direction,
It is necessary to adjust the position of the interlocutor with respect to the imaging unit.
However, in order to achieve a line-of-sight matching state in which the display area of the image of the interlocutor on the other side and the imaging unit are both fixed, it is complicated to adjust the position of the interlocutor himself / herself to be imaged, and also during dialogue If the person moves, it becomes impossible to capture images of the interlocutors in the line-of-sight matching state. As a result, there is a problem that it is difficult to maintain the eye-gaze matching state due to the movement of the interlocutor during the dialogue.

The present invention has been made to solve the above problems, and an image for obtaining a desired display image of a target object is not affected by the movement of the target object being imaged. An object of the present invention is to provide a display method, a display device, an interactive system including the display device, a computer program for executing the display method, and a recording medium having the computer program recorded therein.

[0005]

A display device according to the present invention comprises a display section and a control section for processing an object image and controlling display. In this controller, the image display method according to the present invention is carried out. That is, as the image display method according to the present invention, the control unit includes a first step of capturing a wide-angle image of an object (such as a person) captured in a state including a background, and a step of capturing the wide-angle image of the captured wide-angle image. A second step of generating a display image having the same resolution as the wide-angle image by cutting out a predetermined area smaller than the size of the wide-angle image, the area including at least a part of an object included in the wide-angle image; The third step of displaying the cut-out display image in a predetermined area of the display unit is performed. Note that the control unit may enlarge or reduce the size of the captured wide-angle image before cutting the display image. Further, the control unit may switch the size of the display image cut out from the captured wide-angle image according to the size of the actual display area on the display unit.

The display device having the above-mentioned structure has an image pickup means for picking up an interlocutor located in front of the display unit arranged so as to overlap a part of the image of the interlocutor on the other side displayed on the display unit. The present invention can be applied to a two-way interactive system that realizes a remote dialogue by transmitting and receiving imaged interlocutor images between the respective terminal devices via a predetermined transmission means. Particularly, in this case, the display device is included in at least one of the terminal devices, and the terminal device further captures an image of the interlocutor located in front of the display unit of the display device.
An image pickup unit is provided between the display unit and the interlocutor.

In the display device applied to such a bidirectional interactive system, the control unit included in the display device has a wide-angle image of the other-side interlocutor imaged by the image-capturing means in a state including a background. The first step of receiving
A display area having the same resolution as that of the wide-angle image is obtained by cutting out a predetermined area smaller than the size of the wide-angle image received from the transmission means and including the face of the other party's interlocutor. And a cutout display image viewed from an interlocutor positioned in front of the display unit, the head above the eye position of the other-side interlocutor image that is the display image. And a third step of displaying at a predetermined position of the display unit so that the image pickup means and the image pickup means overlap each other.

Even in such a two-way interactive system, the control section may enlarge or reduce the size of the captured wide-angle image before cutting the display image. Further, the control unit may switch the size of the display image cut out from the captured wide-angle image according to the size of the actual display area on the display unit.

The image display method as described above may be a program executed by a computer or the like. In this case, the program may be distributed via a network regardless of whether it is wired or wireless. It may be stored in a recording medium such as a CD, a DVD, or a flash memory.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of an image display method, a display device and the like according to the present invention will be described in detail below with reference to FIGS. In the description of the drawings, the same parts will be denoted by the same reference symbols and redundant description will be omitted.

A display device which realizes the image display method according to the present invention realizes remote dialogue through a display device connected through a predetermined transmission means, for example, Japanese Patent No. 3074.
It is applicable to the two-way interactive system described in No. 677.

First, the bidirectional interactive system to which the image display method and the display device for realizing the image display method are applicable will be described. This interactive interactive system is a system that realizes remote dialogue in a state where the line-of-sight matches, but the image display method and the display device that realizes the same have a configuration in which the line-of-sight cannot be matched between the interlocutors. It is also applicable to a two-way interactive system capable of simply transmitting and receiving text data and image data.

FIG. 1 is a logical block diagram showing the entire interactive interactive system that enables line-of-sight matching between interlocutors at remote locations. This system realizes a two-way dialogue between an interlocutor 3A (first interlocutor) at point A (first point) and an interlocutor 3B (second interlocutor) at point B (second point). It is a system that does. In particular, this system is a counseling system that establishes intimate relationships of trust even with interlocutors in remote areas and enables close communication, and a system that aims at home learning. , Is supposed to be a counselor such as a psychologist. Therefore, this system has various functions and configurations so that these counselors can provide information necessary for counseling and an ideal counseling environment.

Specifically, at the point A, (a) a chair 4A (having a height adjusting mechanism 40A) on which an interlocutor 3A (for example, a counselor) sits, and (b) a table 2A to which the interlocutor 3A faces. (C) The terminal device 20A having a mechanism for matching the lines of sight of the interlocutors via the transmission means 27 is installed, and the interlocutor 3A is isolated by the partition 22A. On the other hand, at point B, (a) Interlocutor 3
A chair 4B (having a height adjustment mechanism 40B) on which B (for example, a client receiving counseling) sits, and (b)
The table 2B to which the interlocutor 3B faces, and (c) the transmission means 2
The terminal device 20B provided with a mechanism for matching the line of sight between the interlocutors via 7 is installed, and the interlocutor 3B is isolated by the partition 22B. Here, the transmission means 27 enables transmission and reception of image information and audio information between the terminal device 20A at the point A and the terminal device 20B at the point B, so as to enable transmission and reception of the optical fiber transmission line 31 (main transmission line) and the satellite. The communication transmission path 32 (transmission path for backup) and the like are included. The transmission means 27 may be wired or wireless. In addition, the transmission means includes a network such as a telephone line network that has already been installed, and a bulletin board system (BBS: Bulletin Board Syste
m) is also included.

At point A, the chair 4A described above functions to define the position of the interlocutor 3A. This chair 4A is preferably fixed in order to keep a constant distance from the display unit 21A of the terminal device 20A. However, even if the chair 4A is not fixed, the chair 4A can be installed by installing the table 2A on the interlocutor 3A and the display unit 21A.
It becomes possible to maintain a constant distance from the display unit 21A (the fact that the existence of the table 2A serves as a reference for the psychological distance of the interlocutor 3A has been confirmed). The configuration of the terminal device 20B at the point B where the other party's interlocutor 3B (for example, a person who receives counseling) is the same.

At the point A, the terminal device 20A (1)
A monitor TV arranged on the table 2A for displaying the image of the interlocutor 3B based on the image information transmitted from the terminal device 20B at the point B via the transmission means 27.
A display unit 21A provided with 1A, (2) an image pickup unit 6A for taking in the image of the interlocutor 3A picked up by the CCD camera 5A as image information, and transmitting it to the terminal device 20B at the point B, (3 ) A voice output unit 23A for outputting the voice of the interlocutor 3B based on the voice information transmitted from the terminal device 20B at the point B via the transmission means 27.
(Speaker), and (4) a voice input unit 24A (microphone) for collecting the voice of the interlocutor 3A as voice information and transmitting it to the terminal device 20B at the point B. In addition, this system, as a counseling system, realizes more detailed communication.
Input a character or a graphic, display the input character or graphic on the display unit 21A, and transmit the character or graphic information to the terminal device 20B at the point B as a character or graphic information (keyboard, pointing, An image processing device 26A (including a control unit) which is provided between each component and the transmission means 27 and which performs signal processing, transmission control, video data editing work, etc. With. The terminal device 20B at the point B is also configured in the same manner as the terminal device 20A at the point A, and specifically, the display unit 21B and the CCD.
Imaging device 600 including camera 5B and imaging unit 6B
B, a voice output unit 23B, a voice input unit 24B, a character / graphics input unit 25B, and a video processing device 26B.

Further, the terminal devices 20 at the points A and B
In A and 20B, the configurations of the imaging devices 600A and 600B (imaging means) will be described. For convenience of description, when referring to components common to the terminal devices 20A and 20B at points A and B, for example, the imaging device 60
The description will be made by omitting the letters A and B that distinguish each point like 0. In addition, unless specifically described, the terminal device 20A at the point A is described in principle, and the terminal device 20 at the point B having a common configuration is described.
Overlapping description of B is omitted.

This image pickup device 600 includes an ultra-small CCD camera 5 (5A) which is an image pickup section, and a support mechanism 10 (FIG. 2) for installing the CCD camera 5 in a supported state at a predetermined position.
Reference unit) and an image pickup unit 6 (6A) for controlling the CCD camera 5. The monitor TV 1 (1A) is placed on the table 2 (2A), and the interlocutor 3
(3A) is a chair 4 (4) provided with a height adjusting mechanism 40 (40A) placed at a distance L (m) from the monitor TV 1.
Sitting in A). This distance L (LA) is set to 0.5 m or more and 5 m or less. An outer diameter of 20 mm or less and a length of about 100 mm between the interlocutor 3 and the monitor TV 1 to be photographed.
A cylindrical microminiature CCD camera 5 is provided. Further, the CCD camera 5 is installed so that its imaging direction is directed to the interlocutor 3 who is imaged. Then, the image of the interlocutor 3 imaged by the camera 5 is transmitted as image information from the imaging unit 6 to the other interlocutor side (transmitted to the terminal device 20B at the point B via the transmission means 27).
Depending on the interlocutor, the space between the display unit 21 and the interlocutor may be weakened. Therefore, in order to cope with such a situation, it is preferable that the CCD camera 5 has a deep focal depth.

Next, a specific installation position of the microminiature CCD camera 5 will be described with reference to FIG.

First, the image pickup unit 6 of the image pickup device 600 is installed on the display section 21 for displaying the transmitted image of the other interlocutor. An image of the interlocutor himself / herself taken by the camera 5 is captured in the body of the imaging unit 6 (captured by the imaging unit 6 via the camera cable 50)
In addition to the changeover switch 6a, various adjustment switches 6b are provided for switching between the display of 1) and the display of the transmitted image of the interlocutor 3B. The switch 210 includes a power switch for turning on / off the power of the monitor TV 1. The CCD camera 5 is installed by a support mechanism 10 (robot arm) at a predetermined position in front of the monitor screen 8 on which the transmitted image 9 of the interlocutor 3B is displayed. The monitor screen 8 can be sufficiently used if it has a size of about 4 inches.

Specifically, the CCD camera 5 is at a position forward w (cm) from the monitor screen 8, and the monitor screen 8
It is arranged near the head 9a of the interlocutor image 9 displayed in FIG.
The central axis of the cylindrical CCD camera 5 is located at a position h (cm) above the eye position of the interlocutor image 9 shown by the dotted line.

As described above, since the microminiature CCD camera 5 is located near the head above the eye position of the interlocutor image 9 displayed on the screen 8 of the large monitor TV 1, it is particularly suitable for two-way dialogue. No trouble will occur. For example, the CCD camera 5 is provided above the eye position (the position shown by the dotted line in the figure) of the interlocutor image 9 displayed on the screen 8 at h = about 10 (cm), and between the monitor TV 1 and the interlocutor 3. In the case of the system configuration in which the distance L is set to about 2.5 (m), the parallax angle is 2.3 °.
It is possible to sufficiently fall below the detection limit parallax angle of 3 ° (the interval w between the monitor screen 8 and the CCD camera 5 is 10 (c
Even if there is about m), there is no particular effect on the variation of the parallax angle). That is, if the eyes of the other party (the eyes of the image of the other interlocutor 3B displayed on the monitor screen 8) can be clearly seen at the time of line-of-sight matching, even if the microminiature camera 5 is provided near the head, the monitor It has been confirmed that if the screen 8 of the TV 1 is large, there is almost no hindrance to the interactive dialogue. As a result of the experiment, the size of this screen 8 is 35 cm in width and 26 cm in height.
It has also been confirmed that good two-way dialogue can be realized if the size is at least a certain level. It should be noted that if mutual interlocutors are acquaintances, there is a result that there is a tendency that there are few psychological obstacles even if the size of the screen is small, and it is advisable to properly use the screen size according to the application.

Further, the parallax angle will be described with reference to FIG. In this specification, the parallax angle means, as shown in FIG. 3, the line of sight of the interlocutor 3 to be photographed, which is directed to the interlocutor image 9 displayed on the monitor screen 8, and the direction of the CCD camera 5. The angle θ formed by the line of sight of the interlocutor 3 is defined. In other words, it means the shift angle of the installation position of the CCD camera 5 with respect to the line of sight of the interlocutor 3. In addition, the line-of-sight matching here means the 4th Japan Electrical Engineers Union Meeting (N)
o. 1998), it means that the unnaturalness due to the installation position of the CCD camera 5 is below the allowable limit. Quantitatively, the parallax angle is 4.5 ° or less in the left and right direction (both temple sides of the image 9 with respect to the eye center A of the interlocutor image 9), and 12 ° directly above (with respect to the image center A, The head 9b side of the image 9) and 8 ° below (the body side of the image 9 with respect to the image center A) or less are within the line-of-sight matching range. Of course, the smaller the parallax angle, the better, and the detection limit is 3 ° or less in the horizontal and vertical directions. Therefore, the area in which the CCD camera 5 can be installed is the conical area shown in FIG. In addition,
This conical area is the center point A of the interlocutor image 9 displayed on the monitor screen 8 and the eye 30 of the interlocutor 3 (in this embodiment, the center of both eyes of the interlocutor image 9 is the center point of the interlocutor image 9). Defined as A), the line of sight 31 of the interlocutor 3 connecting
It is defined by the line-of-sight matching region 9b on the monitor screen 8 and the position of the eye 30 of the interlocutor 3 when the monitor is separated by a predetermined distance L (m).

FIG. 5 is a diagram showing a schematic structure of a display device according to the present invention. This display device includes a display unit 21 such as a monitor (corresponding to the display units 21A and 21B in the interactive interactive system shown in FIG. 1) and a video processing unit 26 (FIG. 1).
(Corresponding to the video processing devices 26A and 26B in the two-way interactive system shown in FIG. 2), an external recording device 700, and a pointing device 800 such as a mouse. Particularly, the video processing unit 26 receives the image information from the image pickup unit 6 included in the image pickup unit and transmits / receives the image information of the other party's interlocutor via the transmission unit 27 (in the figure, I / O), a control unit 263 for performing the image display operation according to the present invention, and image data to be transmitted / received, as well as character data, video data and the like prepared by the interlocutor himself / herself in advance. Database 262
(D / B in the figure), a drawing unit 264 that displays a predetermined pattern on the display unit 21 according to an instruction from the control unit 263,
A data input / output unit 265 (I / O in the figure) that enables the acquisition of position information from a pointing device 800 such as a mouse and the exchange of data with the external recording device 700 is provided. The external recording device 700 includes, for example, a magnetic tape, a CD, an optical disk, a hard disk, a DVD, a flash memory and the like.

Specifically, the I / O 2 is transmitted via the transmission means 27.
When 61 receives the wide-angle image 800 of the other party's interlocutor including the background as shown in FIG. 6A, the control unit 263.
Implements the image display method according to the present invention. That is, the control unit 263 identifies the face position of the other party interlocutor of the received wide-angle image 800, and identifies the region 500a that includes this face and is smaller than the size of the wide-angle image 800. Further, as shown in FIG. 6B, the control unit 263 displays the specified area 500a in the display unit 2
1 is cut as a display image to be displayed (having the same resolution as the wide-angle image), and the display unit 264 controls the display of the cut display image. The control unit 26
In the display control by 3, the head above the eye of the image of the interlocutor who is the cut-out display image and the CCD camera (imaging unit) 5 previously installed in front of the monitor screen of the display unit 21 The display position is adjusted so that they overlap. Further, in FIG. 6B, the cut-out display image is displayed on the entire monitor screen 8. However, if the head of the cut-out interlocutor image and the CCD camera 5 overlap each other. A display image having a size that occupies a partial area of the monitor screen 8 may be displayed with the character data display area secured.
The above resolution is the number of scanning lines per unit length (lines / mm)
Alternatively, it is defined by the number of pixels (pieces / mm).

If the size of the display image (image of the other party's interlocutor) displayed on the monitor screen 8 is small, the CCD camera 5 and the head of the image of the other party's interlocutor must necessarily overlap. There is no. Rather, the head of the other party's interlocutor is CC
It is hidden by the D-camera 5 and difficult to see. As described above, the condition for line-of-sight matching is that the CCD camera 5 is set within the area of the parallax angle of 3 °.
The presence of the image of the other party's interlocutor image is about 3 cm (h in FIG. 2) at a position 50 cm away from the screen. Therefore, within this range CC
The line-of-sight matching state is maintained even if the heads of the D camera 5 and the image of the interlocutor on the other side are shifted. To shift the interlocutor image and the CCD camera 5 from each other, for example, by adjusting the image display position on the monitor screen 8 or adjusting the support portion of the CCD camera 5 to change the position of the CCD camera 5 itself. Will be realized.

In a two-way interactive system that enables dialogues in line-of-sight correspondence with each other, the relative position of the CCD camera 5 with respect to the monitor screen 8 of the display unit 21 is fixed, so that the interlocutor being imaged moves. As shown in FIG. 7A, in the wide-angle image 810 of the other-side interlocutor imaged by the CCD camera 5, the position of the other-side interlocutor image is displaced, and the line-of-sight matching state cannot be maintained. there is a possibility. Even in such a case, in the image display method, the control unit 263 previously specifies the face position of the other-side interlocutor image from the received wide-angle image 810, and determines the area of the predetermined size including the face. Cut out 500a as a display image.
Therefore, even when the other party interlocutor who is imaged moves (the face position of the other party interlocutor image in the received wide-angle image 810 changes), the cut-out display image is displayed in FIG. As shown in FIG. 5, the monitor screen 8 of the display unit 21 maintains the line-of-sight matching state between the interlocutors.

Next, a specific image display operation (image display method according to the present invention) in the control section 26 will be described with reference to the flowchart of FIG. The following image display operation will be described as an image display operation in the two-way interactive system shown in FIG.

First, when the I / O 261 captures the wide-angle image of the other-side interlocutor transmitted through the transmission means 27 (step ST10), the control unit 263 causes the other-side interlocutor image in the captured wide-angle image. The face position of is specified (step ST20). The face position is specified in FIG.
As shown in FIGS. 9A and 9B, it can be easily specified by detecting the contour of the image of the interlocutor on the other side. For example, in the contour detection shown in FIGS. 9A and 9B, by differentiating each image component value along the X direction in the wide-angle image, as shown in FIG. 9B. In addition, since the differential peak can be detected at the positions corresponding to the contour portions x1 and x2 of the image of the interlocutor on the other side, the face position and size of the interlocutor on the other side can be detected.

In step ST20 described above, if the detected face size of the image of the other party's interlocutor is smaller than the area in the monitor screen 8 that is actually displayed, the wide-angle image 820 once fetched (see FIG. a)) is adjusted in size (step ST30) to obtain an enlarged wide-angle image 830 (FIG. 10 (b)). Note that FIG. 10A shows a wide-angle image 820 in which the face size of the image of the other party's interlocutor is smaller than the area of the monitor screen 8 that is actually displayed.
Indicates the face size actually displayed on the monitor screen 8. Further, in this step ST30, the reduction processing of the captured wide-angle image may be performed.

Then, the control section 263 proceeds to step ST2.
Based on the information on the face position and the size of the image of the interlocutor detected at 0, as shown in FIG.
The area 500a to be displayed is specified (step ST4).
0). The control unit 263 displays the cut image on the display unit 2
The drawing unit 264 is display-controlled so as to be displayed in a predetermined display area on the first monitor screen 8 (step ST50).

The area to be cut out as a display image from the captured wide-angle image 800 depends on the size of the area actually displayed on the monitor screen 8, for example, as shown in FIG.
As shown in FIG. 1, the cutout areas 5 having a plurality of sizes are previously prepared.
00a, 500b, 500c are preferably prepared. However, since the position of the CCD camera 5 located in front of the monitor screen 8 is fixed between the prepared cutout areas, the relative position between the CCD camera 5 and the displayed image of the interlocutor is not changed. As described above, it is preferable to prepare areas that are deviated in the respective directions shown by the arrows S1, S2, and S3 around the face of the image of the interlocutor.
In particular, when the size of the display image is small, the head of the other party's interlocutor is hidden by the CCD camera 5, making it difficult to see. In such a case, the display on the monitor screen 8 is performed as described above. It is preferable to adjust the display position of the image and the position of the CCD camera 5.

[0033]

As described above, according to the present invention, a predetermined area smaller than the size of the wide-angle image of the wide-angle image of the object captured including the background is at least the object. A display image having the same resolution as the wide-angle image is generated by cutting out a region including a part, and the cut-out display image is displayed in a predetermined region of the display unit. In the two-way interactive system, the effect of enabling the display of the image of the other party's interlocutor who can maintain the line-of-sight matching state even when the imaged interlocutor himself cannot maintain the line-of-sight matching state There is.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a two-way interactive system that realizes line-of-sight matching between remote places via transmission means.

FIG. 2 is a diagram showing the image pickup device shown in FIG. 1, and a diagram for explaining a method of installing a CCD camera for line-of-sight matching.

FIG. 3 is a diagram illustrating a parallax angle.

FIG. 4 is a diagram showing an area where a CCD camera is to be installed.

FIG. 5 is a block diagram showing a configuration of a display device according to the present invention.

FIG. 6 is a diagram for explaining an embodiment of a monitor image display method according to the present invention.

FIG. 7 is a diagram for explaining another embodiment of the monitor image display method according to the present invention.

FIG. 8 is a flow chart for explaining a monitor image display method according to the present invention.

FIG. 9 shows a method of displaying a monitor image according to the present invention,
It is a figure for demonstrating an example of the outline detection of this monitor image.

FIG. 10 is a diagram for explaining an example of a monitor image size adjusting process in the monitor image display method according to the present invention.

FIG. 11 is a diagram for explaining a method of changing the cutout size of the monitor image in the monitor image display method according to the present invention.

[Explanation of symbols]

8 ... Monitor screen, 21 (21A, 21B) ... Display section, 3
(3A, 3B) ... Interlocutors A, B, 5A, 5B ... CCD camera, 6 (6A, 6B) ... Imaging unit, 600 (60)
0A, 600B) ... Imaging device, 26 (26A, 26B)
... video processing device, 262 ... D / B, 263 ... control unit, 8
00 ... Mouse (pointing device).

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hisao Maki             Sumitomoden 1 Taya-cho, Sakae-ku, Yokohama-shi, Kanagawa             Ki Industry Co., Ltd. Yokohama Works F-term (reference) 5B057 AA20 BA02 BA26 CA12 CA16                       CB12 CB16 CC01 CD05 CE09                       DA08 DB02 DC16                 5C064 AA01 AB04 AC02 AC13

Claims (11)

[Claims] 1. A first step of capturing a wide-angle image of an object imaged in a state including a background, and a predetermined area smaller than the size of the wide-angle image in the captured wide-angle image, A second step of generating a display image having the same resolution as the wide-angle image by cutting out an area including at least a part of the object, and a third step of displaying the cut-out display image in a predetermined area of the display unit. Image display method provided. 2. A terminal device having image pickup means for picking up an interlocutor located in front of the display unit arranged so as to overlap a part of the image of the interlocutor on the other side displayed on the display unit,
An image display method in a two-way interactive system for realizing a remote dialogue by transmitting and receiving imaged interlocutor images via a predetermined transmission means, wherein an image is captured by the imaging means in a state including a background. A first step of receiving a wide-angle image of the other-side interlocutor, and cutting out a region that is smaller than the size of the wide-angle image and that includes the face of the other-side interlocutor in the received wide-angle image And a second step of generating a display image having the same resolution as the wide-angle image, the cut-out display image being the display image when viewed from the interlocutor located in front of the display unit. An image display method comprising a third step of displaying at a predetermined position of the display unit so that the head above the eye position of the image of the interlocutor on the other side and the imaging unit overlap each other. 3. The image display method according to claim 1, wherein the first step includes a sub-step of enlarging or reducing the size of the wide-angle image. 4. The image display method according to claim 1, wherein in the second step, the size of the display image cut out from the wide-angle image is switched. 5. A display unit and a wide-angle image of an object captured in a state including a background are captured, and the target is a predetermined region smaller than the size of the wide-angle image in the captured wide-angle image. A display unit that generates a display image having the same resolution as the wide-angle image by cutting out an area including at least a part of the display area, and displays the cut-out display image in a predetermined area of the display unit. apparatus. 6. The display device according to claim 5, wherein the control unit enlarges or reduces the size of the wide-angle image before cutting the display image. 7. The display device according to claim 5, wherein the control unit switches a size of a display image cut out from the wide-angle image. 8. A two-way interactive system that realizes a remote dialogue by transmitting and receiving the image of the other party's interlocutor between the terminal devices via a predetermined transmission means, wherein at least one of the terminal devices is A two-way interactive system comprising a display device according to any one of claims 5-7. 9. The terminal device is provided with an imaging means arranged between the display unit and the interlocutor so as to image the interlocutor located in front of a display unit included in the display device. The two-way interactive system of claim 8 characterized. 10. A computer program for executing the method according to claim 1 by a computer. 11. A recording medium in which a computer program for executing the method according to any one of claims 1 to 4 is recorded by a computer.