JPH0675234B2 - Time division multi-view image presentation device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a time-division multi-view image presentation device, and more particularly to a time-division multi-eye image presentation device in which a plurality of observers can simultaneously observe different images on a single monitor television.

[0002]

2. Description of the Related Art A conventional television can reproduce only one type of image information on one CRT. In order to reproduce two or more types of image information, there is a lenticular system in which a semi-cylindrical lenticular lens is attached to a screen or a CRT surface and a plurality of pixels are separated through this lenticular lens. However, although the lenticular system allows multi-view reproduction, there is a problem in that one lenticular lens must be filled with information for reproduction channels, which makes designing very difficult and expensive. It was

Therefore, a main object of the present invention is to provide a plurality of images to a plurality of observers who can move freely according to the movements of the observers by simply using shutter glasses. An object is to provide an eye image presentation device.

[0004]

SUMMARY OF THE INVENTION The present invention is a time-division multi-view image presentation device that allows a plurality of observers to simultaneously observe different images on a single monitor. Scan conversion means for converting the scan rate to a plurality of times, a conversion means for converting the output of the scan conversion means into a serial signal, a head momentum detecting means for detecting the head momentum of each observer, and a head momentum. It comprises image selecting means for selecting an appropriate image according to the amount of head movement detected by the detecting means, and shutter glasses that are attached to each observer and open and close in synchronization with the serial conversion of the converting means.

[0005]

The time-division multi-view image presenting apparatus according to the present invention converts the scan rate of the output of a plurality of image signals into a high-speed non-interlaced image, serially rearranges them, and presents them. By controlling the shutter glasses so that an appropriate image pair is presented on the left and right surfaces according to the movement, a multi-eye image is reproduced according to the movement of the observer.

[0006]

1 is a schematic block diagram of an embodiment of the present invention. In FIG. 1, n (n is an integer of 2 or more) image signals are scan converters 11, 12 ... 1n.
And is converted into an n-fold scan rate. Outputs of the scan converters 11, 12, ... 1n are given to the P / S conversion unit 8. The P / S converter 8 converts signals output in parallel from the scan converters 11, 12 ... 1n into serial signals, outputs the serial signals, and supplies the serial signals to the monitor 9. The observer 1 is wearing a head sensor 5 and shutter glasses 10 for measuring head movement. The head movement sensor 5 will be described later with reference to FIGS. Head sensor 5
The head movement detection signal of the observer 1 detected by is given to the head movement detection control unit 61. A plurality of head movement detection control units 61 are provided for each observer 61 ... 6n. The head movement detection controller 61 includes an observer movement detector 71, an image selector 72, and a shutter driver 73. The observer movement detection unit 71 detects the movement of the observer based on the output of the head sensor 5, and supplies the detection signal to the image selection unit 72. The synchronization signal is supplied from the synchronization signal generation unit 4 to the image selection unit 72. The image selection unit 72 selects an image suitable for the movement of the observer 1 in synchronization with the synchronization signal, and gives a control signal to the shutter drive unit 73. The shutter driving unit 73 responds to the control signal to release the shutter glasses 10
Open and close. The head sensor 5 and the shutter glasses are prepared for the number of observers who observe at the same time. The output of the P / S converter 8 is non-interlaced, and as a result, an arbitrary image can be selected for each observer.

FIG. 2 is a timing chart for explaining the operation of the embodiment of the present invention. In this embodiment, it is assumed that the image signals 1 to 4 are output from the four cameras. 2 cameras (a), (c),
Image signals 1 to 4 shown in (e) and (g) are output and provided to the scan converters 11 to 14. The scan converters 11 to 14 are non-interlaced and quadruple scan-converted the image signals 1 to 4, and the image signals shown in FIG.
The signals as shown in (d), (f) and (h) are output.
These signals are given to the P / S conversion unit 8, and the P / S conversion unit 8 converts the parallel outputs of the scan converters 11 to 14 into serial signals as shown in FIG. give. On the other hand, the movement of the head of each observer is detected by the head sensor 5, and the observer movement detection unit 71 detects the movement of the observer and provides the detected image to the image selection unit 72. The image selection unit 72 controls the shutter drive unit 73 to select an image suitable for the movement of the observer 1. 2 (j), (k),
A shutter drive pulse as shown in (m) and (n) is given. In this way, it is possible to switch and observe any image corresponding to the head position of the observer 1, which is a feature of the present invention.

3 to 5 are views showing an example of a head sensor. FIG. 3 shows an example in which a magnetic sensor is used. A source 53 installed near the observer 1 and a sensor 54 attached to the observer are three sets wound in three axis (X, Y, Z) directions. 3 coils of the source 53 are included in the CPU 5
In response to the control signal from 1
It is driven by a kind of alternating current. When the observer moves, electromotive force is generated in the three coils of the sensor 54 according to the movement. The detection unit 55 detects the electromotive force, and the CPU 51 detects the movement of the observer from the change in the detection output. The sauce 53 is installed under a wooden desk, for example, as shown in FIG.
The sensor 54 is attached to the head of the observer 1.

FIG. 5 shows an example of a head sensor using an LED. An observer 1 is equipped with an LED 21, and an image of the LED 21 is taken by a camera 22 placed on a monitor 9 or the like. The shooting output of the camera 22 is given to the image processing unit 23, and the image processing unit 23 performs image processing on the output of the camera 22 and detects the movement of the observer 1 from the movement of the image of the LED.

[0010]

As described above, according to the present invention, a plurality of observers can simultaneously observe different images using one monitor. Therefore, it can contribute to medical image presentation such as CT and new television broadcasting.

[Brief description of drawings]

FIG. 1 is a schematic block diagram of an embodiment of the present invention.

FIG. 2 is a timing chart for explaining the operation of the embodiment of the present invention.

FIG. 3 is a diagram showing a detection principle of a head movement sensor using a magnetic sensor.

FIG. 4 is a diagram showing a source of a magnetic sensor and an arrangement example of the sensors.

FIG. 5 is a diagram for explaining a detection principle of a head movement detection sensor using an LED.

[Explanation of symbols]

 4 sync signal generation part 5 head sensor 8 P / S conversion part 9 monitor 11, 12 ... 1n scan converter 10 shutter glasses 21 LED 23 image processing part 51 CPU 52 AC drive part 53 source 54 sensor 55 detection part 71 observer movement Detection unit 72 Image selection unit 73 Shutter drive unit

Claims (1)

[Claims] 1. A time-division multi-view image presentation device that allows a plurality of observers to observe different images at the same time, and a scan for converting a plurality of image signal outputs into a non-interlace multiple times scan rate. Conversion means, conversion means for converting the output of the scan conversion means into a serial signal, head momentum detection means for detecting the head momentum of each observer,
An image selection unit that selects an appropriate image according to the head momentum detected by the head momentum detection unit, and shutter glasses that are attached to each observer and that open and close in synchronization with serial conversion of the conversion unit. A time-division multi-view image presentation device provided.