JP2885988B2 - Visual information display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a visual information display device capable of displaying an image created by a computer graphic device on a field of view of a wearer.

[0002]

2. Description of the Related Art For example, when a scene of a building or the like to be completed at a planned construction site is to be displayed as a video, an image of the building to be completed is created by computer graphics (hereinafter abbreviated as CG) and a monitor screen is displayed. It is generally displayed above, and the person in charge of the work at the site of the construction site views the image information such as the image to be completed by the CG, the television image, the video image, etc. at any place while moving within the site. It would be useful to be able to grasp the progress of construction work.

[0003] The present applicant projects image information such as a building completion image, a television image, and a video image by a CG onto a half mirror arranged on the line of sight, so that the CG, There has been proposed a visual information display device capable of superimposing and displaying video information such as television and video.

[0004]

When the above-described apparatus is used, when a landscape image of a computer image created by CG is projected on a half mirror to make it overlap with a landscape captured by the naked eye, the use of the apparatus is required. When the person changes the direction and position of the head, the scenery that the naked eye changes also changes. Therefore, it is needless to say that it is convenient to change the direction and the position of the computer image by the CG and project the image on the half mirror according to the change of the scenery captured by the naked eye.

[0005] The present invention has been made in view of the above points, and the completion of a building created by CG as the orientation and position of the user's head changes and the scenery captured by the naked eye changes. It is an object of the present invention to provide a visual information display device capable of changing the direction and position of a computer image such as a scheduled image and projecting the image on a half mirror.

[0006]

In order to achieve the above object, the present invention provides a half mirror arranged on the line of sight of a wearer, a half mirror mounted on the head of the wearer, and the half mirror placed in the position. Holding means for holding, a sensor for detecting the orientation and position of the wearer's head, and outputting a computer image of a portion corresponding to the orientation and position of the wearer's head based on the detection result of the sensor And a video display device that is held by the holding means and displays a computer image output by the computer graphic device and projects the image on the half mirror.

Further, according to the present invention, the computer graphic device comprises two computer graphic devices which output computer images of portions corresponding to the direction and position of the head of the wearer with different directivities. The video display device is characterized by comprising two video display devices for displaying computer images output from the respective computer graphic devices.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a schematic configuration of a display portion of a visual information display device according to an embodiment of the present invention, and FIG.
It is an arrow view. In the present embodiment, a case will be described in which a completed image of a building under construction or planned to be constructed at a construction site is superimposed on the actual scene of the site. In FIG. 1, reference numeral 10 denotes a base mount as a holding means, which is attached to a helmet M or a headband (not shown) as shown in FIG.
It is attached to. As shown in FIG. 1, when the helmet M and the headband are mounted on the head H of the worker in charge, the upper surface 11 of the base mount 10 is positioned on the line of sight of the eyes E of the worker in charge. The liquid crystal display device 30 as a video display device is directed to the front of the responsible person.
Numerals 30 are disposed one by one on the left and right sides via a slide frame 20 slidable in the line of sight L of the work manager. Further, the base mount 10 in front of the front end position of the moving range of the slide frame 20 includes:
As shown in FIGS. 1 and 2, two transmission windows 15 are provided, and a Fresnel lens 60 is fitted to each transmission window 15.

As shown in FIGS. 1 and 2, a reflection mirror 40 is provided on the upper surface 11 of the base mount 10 so as to face the two transmission windows 15 and be inclined at 45 ° with respect to the base mount 10. It is provided in. On the other hand, FIG.
As shown in FIG. 2, a half mirror 50 is provided on the L-shaped piece 14 attached to the lower surface 13 of the base mount 10 so as to have two transmission windows 1.
5 and 45 ° with respect to the base mount 10
And 90 ° with respect to the reflection mirror 40.
And is positioned so that it is positioned on the line of sight of the eye E of the work manager. Further, as shown in FIG. 1, a holding piece 51 is attached to the half mirror 50 on a surface opposite to the eye E side of the work manager, and the holding piece 51 allows the half mirror 50 to be seen through. The polarizing glass 70 for adjusting the brightness of the scene seen by the site manager with the naked eye,
It is detachably held so as to be positioned on the line of sight of the work manager.

As shown in FIG. 3, the helmet M includes a receiver for receiving radio waves from a GPS satellite, a geomagnetic sensor, a gyro, and the like. A sensor 80 for detecting the direction and the position is provided, and this sensor 80 is connected to a coordinate setting unit 91 of a CG creation computer 90 described later by wire or wirelessly.

Next, the left and right liquid crystal display devices 30, 30 will be described.
A configuration for displaying an image will be described with reference to FIG. In FIG. 3, reference numeral 31 denotes a receiving unit which receives a video signal according to the NTSC system and causes the liquid crystal display device 30 to display the received signal, and receives a video signal according to the NTSC system in, for example, an ultra high frequency (UHF) band via the antenna 32. (Not shown). In this embodiment, two sets of tuners for receiving video signals of mutually different frequencies are provided in the receiving unit 31 corresponding to the left and right liquid crystal display devices 30 and 30.

In FIG. 3, reference numeral 33 denotes the receiving unit 3.
1. Two transmission units are provided corresponding to the transmission unit 1.
3 is a CG creation computer 90 serving as a computer graphic device for outputting, via the RGB = NTSC converter 34, a computer image created assuming the completion of the construction work for the building under construction and its surroundings.
Is connected. Note that each transmitting unit 33 performs transmission to a tuner in the receiving unit 31 at a different frequency from each other,
From each of the CG creating computers 90, signals of computer images of the same part, whose directivities are slightly shifted from each other, correspond to the left and right eyes E of the worker in charge of RGB = NTSC.
Each is output to converter 34.

On the other hand, two CG creation computers 90
As shown in FIG. 3, a CG data holding unit 94 for holding computer image data created on the assumption that a building under construction and its surroundings are completed, and a detection result of the sensor 80 Based on the head H of the work manager
Setting unit 9 for setting coordinate values representing the direction and position of the image
1 is provided. Also, as shown in FIG. 3, each CG creation computer 90 sets the CG data holding unit 94 based on the coordinate values set by the coordinate setting unit 91.
The data of the display area to be output to the liquid crystal display device 30 is extracted from the data of the computer image held in the computer, and the direction and the size of the computer image of the extracted area are determined.
It is converted to the one corresponding to the direction and the position of the head H of the work manager, and the directivity of the converted computer image is slightly shifted to the left or right to make the left or right eye E of the work manager. And a background erasing unit 93 for erasing data of the background portion from the converted computer image data. Then, the computer image from which the data of the background portion has been erased is sent from each CG creation computer 90 to RGB =
Each is input to the NTSC converter 34.

Therefore, for example, when the direction of the head H of the worker in charge or the line of sight of the eye E moves up and down or left and right, the computer image scrolled up and down or left and right in response thereto is converted to the image conversion unit 92. And the head H of the work manager
Move in the front-back direction, a computer image enlarged or reduced in response thereto is output from the image conversion unit 92, and a background portion is deleted from the output computer image by the background deletion unit 93 to generate CG. Output to the outside of the computer 90.

In the visual information display apparatus of the present embodiment configured as described above, the signals of the left-eye and right-eye computer images from the CG creation computer 90 are RGB = N.
The signal is converted into an NTSC signal by the TSC converter 34, transmitted from the transmission unit 33 to the air in a very high frequency range, and transmitted to the antenna 3
2 via the receiving unit 31. Then, different computer images for the left eye and the right eye based on the received video signal are displayed on the left and right liquid crystal display devices 30 in an inverted state, and the computer images displayed on the liquid crystal display device 30 in the inverted state are respectively The light is reflected by the reflection mirror 40 and projected on the half mirror 50 in an upright state.

In this case, when the direction and the position of the head H of the work manager move, the detection result of the sensor 80 and the coordinate values set by the coordinate setting unit 91 change accordingly, and the computer image is converted to the coordinate conversion unit. Since the image is scrolled or enlarged or reduced in the up / down / left / right directions at 92, the computer image displayed on the liquid crystal display device 30 and projected on the half mirror 50 has the orientation and position of the head H of the work manager, Eye E
And changes with the change of the line of sight and the visual field.

The size of the computer image projected on the half mirror 50 is enlarged by the Fresnel lens 60, and the computer images for the left eye and the right eye projected on the half mirror 50 are as if by the work manager. For example, it is visually recognized by the work manager as if it is 1 to 5 m ahead.
The luminance of the scene captured by the naked eye through the half mirror 50 can be set to a desired luminance by arbitrarily selecting the degree of polarization of the polarizing glass 70 and holding the polarization piece 70 on the holding piece 51. The focal length of the composite image displayed on the left and right liquid crystal display devices 30 and projected on the half mirror 50 is determined by moving the slide frame 20 in the line of sight L with respect to the base mount 10. It is adjusted appropriately.

As described above, in the visual information display device of the present embodiment, the direction and the position of the line of sight of the worker in charge of viewing the half mirror 50 with the left and right eyes E are changed, and the scene of the site that the worker in charge sees with the naked eye is changed. When it changes, the contents of the computer image representing the completed state of the building under construction and its surroundings projected on the half mirror 50 so as to overlap with the scene seen by the naked eye indicate the orientation and position of the head H of the work manager. Since it changes according to the change, even if the line of sight of the eye E of the work manager changes, a computer image corresponding to the scene of the site reflected in the field of view can be overlaid, and at a glance, the building at the time of completion is completed. It will be possible to recognize the appearance and accurately grasp the progress of construction. Moreover, the left and right liquid crystal display devices 30,
30 displays computer images slightly deviated from each other in correspondence with the left and right eyes E of the work manager, so that the work manager who has observed the half mirror 50 with the left and right eyes E is under construction. A computer image representing the completed state of the building and its surroundings can be viewed as a three-dimensional three-dimensional image, and the sense of reality can be further increased.

In the present embodiment, two CG creation computers 90 are provided which output computer image signals of the same portion slightly different in directivity from each other, and two computer images from each CG creation computer 90 are output. The liquid crystal display devices 30 and 30 are configured to display images. However, as a set of a liquid crystal display device, a computer for CG creation, a tuner of a receiving unit, a transmitting unit, and an RGB = NTSC converter, a so-called monaural image is displayed. Alternatively, two computer images having different directivities corresponding to the left and right eyes E may be alternately output in a time-division manner from a single CG creation computer and displayed on a single liquid crystal display device. It may be possible to see a typical image. Alternatively, two computer images having different directivities corresponding to the left and right eyes E are superimposed and output from a single computer for CG creation, and displayed on a single liquid crystal display device. The two computer images may be separated by a lens such as a lenticular lens and projected onto a half mirror.

In this embodiment, the liquid crystal display devices 30, 3
0 is disposed in an inverted state, and the image is projected on the half mirror 50 after being reflected by the reflection mirror 40.
In the case of using a liquid crystal display device that displays an image as a horizontally inverted image, the reflection mirror may be omitted and the liquid crystal display device may directly project onto the half mirror. , Two reflection mirrors 40 and two half mirrors 50 may be provided correspondingly. Further, in this embodiment, the Fresnel lens 60 is fitted to the transmission window 15 provided in the base mount 10, but the Fresnel lens 60 may be omitted, and the slide frame 20 is The computer image output from the CG creation computer 90 may not be movable in the line-of-sight direction L.
Although the signals are converted into signals and transmitted wirelessly, they may be directly connected to the liquid crystal display device 30 from the CG creation computer 90 by wire.

In addition, a small CRT or other display device may be used as the image display device. However, if the liquid crystal display devices 30 are used as in the present embodiment, they are smaller than the small CRT or other display device. Thus, the weight can be reduced, and the degree of fatigue of the work manager when used for a long time can be reduced. And it goes without saying that the visual information display device of the present invention can be applied to various uses other than the use shown in this embodiment.

[0022]

As described above, according to the present invention, the half mirror arranged on the line of sight of the wearer and the holding means mounted on the head of the wearer and holding the half mirror in the position A sensor that detects the orientation and position of the wearer's head, and a computer graphic device that outputs a computer image of a portion corresponding to the orientation and position of the wearer's head based on the detection result of the sensor And a video display device that is held by the holding means and displays a computer image output by the computer graphic device and projects it on the half mirror, so that the orientation and position of the head of the wearer are With the change, the direction and position of the computer image by the computer graphic device can be changed and projected on the half mirror. Therefore, when the wearer views the computer image projected on the half mirror over the landscape in the field of view, the computer image of a place and a size corresponding to the field of view of the wearer can be always viewed.

[Brief description of the drawings]

FIG. 1 is a side view showing a schematic configuration of a display portion of a visual information display device according to an embodiment of the present invention.

FIG. 2 is a view taken in the direction of the arrow A in FIG.

FIG. 3 is an explanatory diagram showing a schematic configuration of a visual information display device according to an embodiment of the present invention by partial blocks.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Base mount (holding means) 30 Liquid crystal display device (video display device) 50 Half mirror 80 Sensor 90 Computer for making CG (computer graphic device) E Eye H Head

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI H04N 5/64 511 G06F 15/62 360

Claims (2)

(57) [Claims] 1. A half mirror arranged on the line of sight of a wearer, holding means mounted on the head of the wearer and holding the half mirror at the position, and a direction of the head of the wearer; A sensor for detecting a position, a computer graphic device for outputting a computer image of a portion corresponding to a direction and a position of a head of the wearer based on a detection result of the sensor; A video display device for displaying a computer image output from the graphic device and projecting the computer image on the half mirror. 2. The computer graphic device,
The computer graphics device is composed of two computer graphic devices that output computer images of portions corresponding to the orientation and position of the wearer's head with different directivities, and the video display device outputs each of the computer graphic devices. 2. The visual information display device according to claim 1, comprising two video display devices for displaying computer images.