JPH0237890A - Image pickup device for bidirectional picture communication displaying system - Google Patents

Abstract

PURPOSE:To make a call while an observer mutually gazes by arranging a camera at the position corresponding to the arrangement direction of a slit type mirror arranged on the front surface of a display. CONSTITUTION:A slit type mirror 5 is arranged at a certain angle to a display 2. At this time, the image (arrow mark 8) of an observer 3, namely, the locus to image-pick up the observer 3 with a camera is reflected by a mirror surface part 6 and image-picked up by the camera 1 provided on the upper part of the mirror 5. A video (arrow mark) 9 displayed on the display, namely, the locus of the eyes with which the observer watches the displaying picture of the display 2 enters through a clearance 7 into the eyes of the observer 3. Thus, as the camera 1 is placed in front of the display 2, the observer watches the video of the display 2, and then, the camera 1 does not be an obstacle and the image pickup system can be arranged to the position in which the eyes of two observers are matched.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field to Which the Invention Pertains) The present invention relates to imaging blur in a two-way image communication display system.

(Prior Art) Conventionally, a method of installing a camera at a position around a display as a two-way image communication display system t1 has been widely used. One example of its application is when it is used for videophone calls. This allows both callers (hereinafter referred to as I! callers) to talk while looking at each other's faces, thereby creating a sense of intimacy greater than a normal phone call.

FIG. 4 is an explanatory diagram of an imaging system of a conventional videophone. In this example, by positioning the camera 1 near the display 2, the faces of the observers 3 can be displayed.

In the case of such a videophone call, it is very important to secure an area where the observer 3 can recognize their presence, and to create the feeling that they are looking at each other in order to create a sense of intimacy. It is necessary to increase the size of the camera and to install the camera 1 very close to the viewer's 30 line of sight.

However, if the display 2 is made larger in order to make the observer 3 feel a sense of presence, the observer 3 will be able to easily feel the presence of the other party, but on the other hand.

Discrepancies in the observer's line of sight become a problem. This is because the angle 04 between the line of sight of observer 3 looking at the other viewer on display 2 and the direction in which camera 1 images the eyes of observer 3 becomes large, making it impossible to match each other's line of sight. This is because.

In order to avoid this, it is necessary to place the camera 1 in front of the observer 3, which causes a drawback that it becomes an obstacle when the observer 3 views the display screen.

On the other hand, if the display 2 is made smaller, the angle 04 becomes smaller, so the observers 3 feel that their eyes are aligned with each other, but because the display 2 is small, it is difficult to feel the presence of the other person. There is a drawback that.

(Object of the Invention) The present invention solves the above-mentioned conventional drawbacks in a two-way image communication display system using a display and a camera.
The aim is to achieve a better sense of realism by aligning the lines between liI observers.

(Structure of the Invention) (Characteristics of the Invention and Differences from the Prior Art) The present invention provides a two-way image communication display system using a medium to large screen display that does not obstruct the viewer's view of the display screen. *It is characterized by placing the imaging system in a position where the line of sight of the same people matches.

This differs from the prior art in that by using a mirror surface with a slit-shaped opening, the observer's line of sight can be aligned without being obstructed by the imaging system.

(Embodiment) FIG. 1 shows the arrangement of an imaging device according to a first embodiment of the present invention, in which (1) is an overview view and (2) is an enlarged view of part A of (1). The same numbers and symbols as in FIG. 4 are the same, and in FIG. 1, 5 is a slit type mirror.

This has a structure in which strip-shaped mirror surface portions 6 and gaps 7 are arranged at small intervals in the horizontal direction on one plane.

In this embodiment, this slit-type FI5 is installed at a certain angle with respect to the display 2. In this case, the image (arrow) 8 of the viewer 3, that is, the trajectory along which the camera images the viewer 3, is reflected by the mirror surface 6 and is imaged by the camera 1 provided above the mirror 5. Further, the image (arrow) 9 displayed on the display, that is, the locus of the line of sight of the observer looking at the display screen of the display 2 enters the observer 3's eyes through the gap 7. This prevents the camera 1 from getting in the way when the observer 3 views the image on the display 2, unlike when the camera 1 is placed in front of the display 2, and the imaging system is placed in a position where the observers can see each other. can be placed. In that case, it goes without saying that the camera 1 should be set so that the display 2 is not photographed.

FIG. 2 shows the arrangement of an imaging device showing a second embodiment for three-dimensional display using a display 2 with a lenticara sheet, (1) is a top view, (2)
is its side view.

There is a method of using binocular parallax for stereoscopic display.

To do this, two cameras are required to input visual information for each side, and the setting conditions are also limited.

By using the slit-type mirror 5 as in this embodiment, it becomes possible to arrange the two cameras 1 at arbitrary positions, so that appropriate conditions for stereoscopic viewing can be obtained. Also.

In this embodiment, the display 2 with a lenticule sheet is used as a stereoscopic display method, but the present invention is not limited to this and can be used with other stereoscopic display methods.

FIG. 3 is a diagram showing the arrangement of an imaging device showing a third embodiment of the present invention. This is a slit type mirror 5 upper and lower 2
By arranging it in parallel to the display surface of the display 2, the overall configuration of one device can be made smaller without affecting the imaging by the camera 1. Further, the camera 1 was positioned in a black box 10 with little reflection so that an observer 3 (not shown) could not see the camera 1 through the slit-type chain 5.

At the same time, the bottom surface 11 and side surfaces 12 are also made of black material with less reflection to improve the imaging system.

In this embodiment, the camera 1 is placed in a part of the display 2, but it goes without saying that the camera 1 can be placed on the left and right sides or at the bottom of the display 2 by changing the orientation of the slit a5. Although a slit-type mirror with a total reflection mirror was used as the mirror in this embodiment, the same effect can be obtained by using a half mirror.

(Effects of the Invention) As explained above, the present invention includes a slit-type chain placed at an angle in front of a display for a two-way image communication display system, and placed at a position corresponding to the orientation of the armor. The camera allows observers to talk while looking at each other, creating a sense of intimacy that is greater than that achieved through regular telephone calls or video calls.

[Brief explanation of the drawing]

FIG. 1 shows the layout of an imaging device according to a first embodiment of the present invention! 1
(1) is a general view, (2) is an enlarged view of a part thereof, and FIG. 2 is an arrangement of an imaging device according to a second embodiment of the present invention, (1) is a top view, (2) is a side view. FIG. 3 is a side view showing the arrangement of an imaging device according to a third embodiment of the present invention, and FIG. 4 is an explanatory diagram of an imaging system for 11 episodes of conventional television. 1...TV camera, 2...Display,
3... Observer, 4... Angle θ formed by the direction in which the observer 3 views the display 2 and the direction in which the camera 1 images the person 3, 5... Slit type mirror, 6... Mirror surface. 7...Gap portion, 8...Trajectory where the camera 1 images the observer 3, 9...WIt observer display 2
The trajectory of the line of sight when looking at the display screen, 10...Black box with little reflection, 11...Bottom surface, 12...Side surface. Patent applicant Nippon Telegraph and Telephone Corporation Figure 1 Wtz diagram

Claims (1)

[Claims] A mirror with a slit-shaped opening is provided in front of the display surface of the display and is arranged at an angle to the display surface, and a camera that takes an image of the viewer through this mirror is positioned at a position corresponding to the orientation of the mirror. An imaging device for a two-way image communication display system, characterized in that: