JPS60236394A - Stereoscopic television - Google Patents

Abstract

PURPOSE:To see a picture plane in a nutural state corresponding to human eyes and to accomplish long hours' use by controlling a viewing angle which a television camera views a subject in accordance with the viewing angle of a monitoring picture plane of a monitor television. CONSTITUTION:Respective output terminals of television cameras 10 and 11 are connected to a monitor television camera TV14 through a controller 13. The TV14 is provided with a distance measuring device 16, for instance, a ultrasonic sensor for measuring a distance (n) from a human body 15 in correspondence to a monitoring picture plane 17. The controller 13 synthesizes videos from the cameras 10 and 11, and calculates a cross-eye angle 4 with use of the distance (n) from the TV14 to eyes of the human body 15 measured by the device 16. Thus a stereoscopic television is so constituted as to control automatically a parallex angle theta in correspondence to the angle psi; therefore the picture plane can be viewed in the natural state corresponding to eyes of the human body 15, and eye fatigue can be efficiently prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to, for example, a two-lens stereoscopic television in which a stereoscopic image is recognized by independently presenting images of objects with parallax to both eyes.

It has been known that stereoscopic vision in humans is achieved by viewing an object with both eyes. Then, a twin-lens 3D television (hereinafter referred to as 3D T
As shown in FIG. 1, a pair of television cameras (hereinafter referred to as TV left camera) 2, 3, a control device 4, and a monitor television (hereinafter referred to as monitor TV) are shown in FIG. 5 to supply a three-dimensional image to a person 6. In this case, the means for supplying a three-dimensional image to the person 6 is to manually adjust the angle (parallax angle) θ at which the TV left camera 3 looks at the object to display the monitor screen 7 of the monitor 5 in a convergence manner. This is realized by visualizing at an angle ψ (the angle at which the person 6 looks at the monitor screen 7).

However, such means for manually adjusting the parallax angle θ requires constant adjustment depending on the object 1, which is extremely troublesome.

For this reason, in recent years, the value of the parallax angle θC has been changed from 5° to
An automated system has been developed that sets the parallax angle θ to an appropriate value of 10° and controls the parallax angle θ so that the set value is always maintained.

However, none of the three-dimensional TVs that have been realized take into account the state of the eyes of the human being 6, and are configured so that the object 1 is viewed in an unnatural state. For this reason, the human being 6 inevitably suffers eye fatigue due to his vision, which causes trouble in seeing for a long time.

The present invention has been made in view of the above circumstances, and has a control means for controlling the angle at which the television camera views the object according to the angle at which the monitor screen of the monitor television is viewed. To provide a stereoscopic television that can be viewed in a corresponding natural state and can be used for a long time.

Embodiments of the present invention will be described in detail below with reference to the drawings.

Figure 2 shows a stereoscopic TV according to the present invention.
0 and 11 are, for example, distances t to the target object 12, respectively.
There is a pair of TV right cameras installed in. Each output end of these TV cameras 910.11 is connected to the monitor TV 14 via the control device 13. And this monitor TV14
A distance measuring device 16 such as an ultrasonic sensor for measuring the distance n between the monitor TV 14 and the person 15 is provided corresponding to the monitor screen 12, for example.

The control device 13 has a function of synthesizing images from the TV right camera 0.11, and calculating a convergence angle ψ based on the distance n between the monitor TV 14 and the human eye 15 measured by the distance measuring device 16. It is equipped with

Now, the stereoscopic TV configured in this manner controls the parallax angle θ in accordance with the convergence angle ψ in accordance with the procedure shown in FIG.

That is, the stereoscopic TV first measures the distance n between the monitor TVJ4 and the human 15's eyes using the distance measuring device 16. Therefore, the convergence angle ψ is approximately 6.25c between the eyes of human 15.
Since In is substantially constant, the control device 13 calculates this using the formula 6.25 9+ = 2 arctan ( ) n . Here, this control device 13
Based on the above-mentioned convergence angle ψ, the interval m of the TV right camera is adjusted to be 0.11, and the parallax angle θ is made to correspond to the convergence angle ψ.

In this way, the 3D TV is configured to automatically control the parallax angle θ in accordance with the convergence angle ψ.
It can be seen in a natural state corresponding to the eyes of the human eye, and can effectively prevent eye fatigue.

Further, the present invention is not limited to the above embodiment, but the TV right camera is installed at a constant interval of 0.11 m, and the TV right camera is set at a constant interval of 0.11 m.
．． Substantially the same effect can be expected even if the parallax angle θ is controlled by adjusting the distance m between the object 11 and the object 12.

As described in detail above, according to the present invention, the television camera is compatible with the human eye by being equipped with a control means for controlling the angle at which the television camera views the object according to the angle at which the monitor screen of the monitor television is viewed. It is possible to provide a stereoscopic television that can be viewed in a natural state and can be used for a long time.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the configuration of a conventional 3D television, FIG. 2 is an explanatory diagram of the configuration of a 3D television according to an embodiment of the present invention, and FIG. 70-chart shown for illustrative purposes. 10.11...Television camera, 12...Target, 13...Control device, 14...Monitor television, 15...Human, 16...Distance measuring device, 17
...Monitor screen. Applicant's Sub-Attorney Patent Attorney Suzue Takehiko SL Prisoner No. 2. prisoner

Claims (1)

[Claims] A stereoscopic television comprising: a control means for controlling an angle at which a television camera views an object according to an angle at which a monitor screen of a monitor television is viewed.