JPH07129095A - Three dimensional image information terminal device - Google Patents

Abstract

PURPOSE:To more correctly perform an image display in a VR (a virtual reality) device. CONSTITUTION:In a device provided with a display 2 displaying an image based on a signal from a host computer 1 such as a personal computer, a work station, a viewing device 12 passing an image for a right eye and an image for a left eye displayed on the display 2 through respective eyes of an operator and input means 9, 11 inputting the operation of the operator into the host computer 1, the device is provided with a position measuring means detecting the head position or the eye-position and the operating position of the operator, an arithmetic means calculating a distance between pupils of the operator baced on positional information by the position measuring means and a display position calculating means calculating a spacing between images for the right and left eyes based on the distance between pupils calculated by the arithmetic means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention provides an operator with a so-called VR (Virtual Reality) device.
The present invention relates to a three-dimensional image information terminal device that provides three-dimensional information.

[0002]

2. Description of the Related Art Conventionally, design drawings and the like have been created by hand, but with the recent development of computers and the like, so-called CAD for creating design drawings and the like using a display, a keyboard and the like has become widespread.

On the other hand, CAD for processing three-dimensional information has started to spread in recent years. In this case, information input using an input device such as a mouse, digitizer or tablet while observing the two-dimensional information displayed on the display. Based on the above, a stereoscopic view is displayed on the display. However, since the displayed stereoscopic view is two-dimensional information, there is a problem that there is a difference between the display and the actual product.

Therefore, for displaying images three-dimensionally, for example, two small displays called HMD (Head Mounted Display) are placed in front of the left and right eyes.
A goggle-shaped display device that displays an image for the right eye and an image for the left eye on each display, or alternately displays the image for the right eye and the image for the left eye at high speed on one display,
In conjunction with this, there is a liquid crystal shutter that allows an image for the right eye to pass through to the right eye and an image for the left eye to pass through to the left eye so that an object appears to pop out. As shown in, the inter-pupil distance Be of the eyes is set to an average of 60 mm, and the amount of protrusion of the object Dv according to the distance De between the eyes and the display, the image for the left eye and the image for the right eye are calculated by using the following equation. The distance S between the images is calculated.

[0005]

[Equation 1]

However, there is an individual difference in the interpupillary distance, and this difference causes a difference between the pop-out position A to be displayed by the apparatus and the pop-out position B recognized by the operator, which results in an accurate stereoscopic image. There was a problem that it could not be displayed.

[0007]

SUMMARY OF THE INVENTION The present invention sets the image display positions for the right eye and the left eye according to the distance between the pupils of the operator and the distance between the operator and the display to perform accurate three-dimensional display. It is intended for the purpose.

[0008]

The present invention provides a display for displaying an image based on a signal from a host computer such as a personal computer or a workstation, and a right-eye image and a left-eye image displayed on the display. A position measuring means for detecting the position of the operator's head or eyes and the operation position, which comprises a view device passing through each eye of the operator and an input means for inputting the operation of the operator into a host computer. And a computing means for computing the interpupillary distance of the operator based on the position information by the position measuring means, and a display position for computing the image interval for the right eye and the left eye based on the interpupillary distance calculated by the computing means. And a calculation means.

Further, according to the present invention, the distance between the display and the operator's head is measured by the position measuring means, and the image for the right eye and the left eye are calculated based on the interpupillary distance calculated by the calculating means and the detected position of the head by the measuring means. And a display position calculating means for calculating the display interval of the images for use in display.

Further, according to the present invention, the display is constituted by at least a pair of displays which respectively display an image for the right eye and an image for the left eye.

[0011]

The calculating means calculates the interpupillary distance of the operator based on the position of the operator's head or eyes detected by the position measuring means, and the right eye is displayed on the display according to the calculated interpupillary distance. By calculating the image position for the left eye and displaying each image on the display based on the calculation result, it is possible to display the image at an accurate pop-out position by a simpler operation.

Further, for example, when the display is fixed and the operator performs some operation while viewing the image on the display while moving, the distance between the display and the operator's head is measured by the position measuring means, and this measurement is performed. According to the value and the interpupillary distance of the operator calculated by the calculation means, the display position calculation means calculates the image positions for the right eye and the left eye and displays them on the display, so that the operator moves relative to the display. Also, the image can always be displayed in a more accurate pop-out position.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, an embodiment according to the present invention will be described with reference to FIG. 1. (1) is a host computer comprising a so-called graphic workstation, which is a display (2) for displaying an image and a keyboard (3) for inputting. And are mainly connected.

(4) is a manipulator with five joints, which is a desk (5)
The grip (9), which is fixed to the top plate (6) or the like, and which is provided at the tip, for example, the operator (7) holds with the left hand (8), can be freely moved within a predetermined three-dimensional space, The above grip (9) with multiple potentiometers (10) (10)
In addition to detecting the three-dimensional position of, the push button (11) for input is provided at an appropriate position of this grip, and all of these outputs are also input to the host computer (1).

(12) is attached to the head of the operator (7),
A well-known view device including stereo view glasses using, for example, a liquid crystal shutter, is used for the display (2).
The left and right liquid crystal shutters are alternately turned on and off at a speed of 1/60 second in synchronization with the display of the image for the right eye and the image for the left eye that are displayed at a speed of 120 screens per second, and the image for the right eye is The images for the right eye and the left eye pass through the left eye, respectively.

In addition, in place of the viewing device (12), the operator
For example, a receiver (13) of a three-dimensional magnetic sensor for detecting the head position of (7) is attached, and a source (for example, a quadrature coil installed above a preset position of the desk (5) ( It is composed of a quadrature coil that generates a current according to its position by the magnetic field generated in (14), and a pulse current is applied to the coil of the source (14).
From the current value induced in the coil of 3), the relative distance and direction between the source (14) and the receiver (13) are calculated, and from this, from the display surface (15) of the display (2) shown in FIG. operator
Measure the distance De to the eyes (16) and (17) of (7).

The manipulator (4) and the source (1
The position of 4) may be input in advance, for example, from the keyboard (3) or may be input by other suitable means.

FIG. 3 is a block diagram of the present invention, in which the input side of the host computer (1) is operated by the keyboard (3), potentiometers (10), (10), ..., Push buttons (11). A button switch (18) and a receiver (13) are connected, and a display (2), a source (14), etc. are connected to the output side.

Further, the host computer (1) is based on the output of the receiver (13) and the head or eyes (16) of the operator (7).
A position measuring means (19) for measuring the distance between the position of (17) and the display surface (15) of the display (2) and an image recognized by the operator (7) from the image displayed on the display (2). A calculation means (20) for calculating the pop-out amount Dr and calculating the interpupillary distance Be of the operator (7) based on the calculation result, and a display (2) based on the calculation result by this calculation means. A display position calculation means (21) for calculating the display positions of the right-eye image and the left-eye image is provided.

The computing means (20), in step 1, as shown in the flow chart of FIG.
After setting e to 60 mm and the protrusion amount Dv to 100 mm, for example, a sample image such as a cylinder (22) shown in FIG. 1 is displayed on the display (2), and then in step 2, the operator (7)
By operating the push button (11) at the position where the cylinder and the grip (9) overlap, this operating position is detected by the output of the potentiometers (10) (10). The pop-out amount Dr (see FIG. 2) recognized by the person (7) is measured, and the display is displayed by the output of the receiver (13).
The distance De from the (2) to the head or eyes (16), (17) of the operator (7) is measured, and the inter-pupil distance Be of the operator (7) is calculated by the following Equation 2 based on these distances. It is to be calculated.

[0021]

[Equation 2]

Then, according to Be calculated as described above,
In step 4, the distance S between the right-eye image and the left-eye image is sequentially calculated and displayed on the display (2).

In FIG. 5, the inter-pupil distance Be is set to 60 mm,
The pop-out amount Dv is 1 from the display surface (15) of the display (2).
The difference D between the pop-out amount Dr recognized by the operator (7) and the pop-out amount Dv which the device intends to display when six points are set at 20 mm intervals in the range of 00 to 200 mm and are randomly displayed 18 times FIG. 6 shows the measurement result of the interpupillary distance Be of the operator (7) according to the present invention, and the difference D from the pop-out position is measured in the same manner as described above. It is getting smaller.

In the above embodiment, one display is used.
The image for the right eye and the image for the left eye are displayed in (2).
For example, as shown in FIG. 7, a display unit displaying a right-eye image
HM including (23) and a display unit (24) for displaying an image for the left eye
D or the like may be used, and in this case, the distance between the display surface and the eyes is fixed.

During the operation, the position measuring means (19) of the host computer (1) measures the distance De between the display (2) and the position of the head or eyes of the operator (7).

Next, a sample image is displayed on the display (2) by the host computer (1), and based on the operation of the grip (9) of the manipulator (4) for this sample image, the pupil of the operator (7) is operated by the computing means (20). The inter-distance Be is calculated, and the display position calculating means (21) calculates the display positions of the right-eye image and the left-eye image to be displayed on the display (2) based on the calculation result, and displays them.

When the operator (7) moves with respect to the display (2), the position measuring means (19) successively detects the position of the operator (7) and calculates the display position based on the detected value. The means (21) calculates the display positions of the image for the right eye and the image for the left eye that match the position of the operator (7), and displays them on the display (2).

[0028]

With the configuration according to the present invention, the display position of the image for the right eye and the display position of the image for the left eye can be accurately calculated and displayed according to the interpupillary distance of the operator. It is possible to perform 3D display close to.

Further, even when the operator performs an operation while moving with respect to the display, the display position of the image for the right eye and the display position of the image for the left eye can be calculated and displayed according to the position of the operator. It is possible to display an accurate stereoscopic image.

[Brief description of drawings]

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

FIG. 2 is an operation explanatory view showing the embodiment of the present invention.

FIG. 3 is a block diagram showing an embodiment of the present invention.

FIG. 4 is a flowchart showing an embodiment of the present invention.

FIG. 5 is a characteristic diagram showing a conventional example.

FIG. 6 is a characteristic diagram of an example according to the present invention.

FIG. 7 is a configuration diagram showing another embodiment of the present invention.

FIG. 8 is a diagram for explaining a conventional operation.

[Explanation of symbols]

 1 host computer 2 display 7 operator 9 grip 12 view device 19 position measuring means 20 calculating means 21 display position calculating means

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁶ Identification number Reference number within the agency FI Technical indication location H04N 13/04 (72) Inventor Hisao Shimizu 3-201 Minamiyoshikata, Tottori-shi, Tottori Tottori Sanyo Electric Co., Ltd. In the company

Claims (3)

[Claims] 1. A display for displaying an image based on a signal from a host computer such as a personal computer or a workstation, and a right-eye image and a left-eye image displayed on this display pass through each eye of an operator. And a position measuring means for detecting the position of the operator's head or eyes and the operation position, and the position measuring means. And a display position calculation means for calculating the image interval for the right eye and the left eye on the basis of the interpupillary distance calculated by the calculation means. A three-dimensional image information terminal device characterized by the following. 2. An image for the right eye based on the distance between the display and the operator's head measured by the position measuring means and the interpupillary distance calculated by the calculating means and the detected position of the head by the position measuring means. And a display position calculating means for calculating the display interval of the image for the left eye,
The three-dimensional image information terminal device according to claim 1. 3. The display according to claim 1, wherein the display is composed of at least a pair of displays each displaying an image for the right eye and an image for the left eye.
Dimensional image information terminal device.