JPS59119982A - Picture synthesizing system - Google Patents

Abstract

PURPOSE:To obtain the continuity among partial pictures by displaying overlapped pictures at the peripheral parts of adjacent partial pictures when the partial pictures are synthesized into a picture via a variable power optical system at each partial picture. CONSTITUTION:The image of a sample 5 is image picked up by a TV camera 6 and fetched into a picture memory 4 via an A/D converting circuit 7. The picture signals within the memory 4 are divided to partial picture signals under the control of a control circuit 9, and these partial picture signals are distributed to corresponding partial picture memories 91-9N and then supplied synchronously to corresponding CRTs. An overlap area is previously obtained between partial pictures, and the same image part is set on the image parts at both sides of an image dividing line which is set at the overlap area. At the same time, a relation to maintain the synchronism between partial pictures at both sides of the image dividing line is secured for each partial picture. Thus it is possible to watch continuously the joint areas of partial pictures with no disturbance produced at the joint areas of a synthesized picture.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to an image composition method, and particularly to an image composition method that improves the continuity between partial images when combining partial images into one image.

(2) When it is desired to display the background image of a technology on a large screen, various types of means have been developed. One of these methods is to synthesize two images from partial images.

However, due to the nature of the means for displaying one partial image.

Difficulties such as screen continuity remain, and there is a need for the development of technical means that can solve these problems.

(3) Prior art and problems As a means of obtaining one enlarged image from a plurality of partial images as described above, each partial image is
It is called CRT. ).

There is a system that enlarges and displays each partial image of the CRT on a projection surface through a lens.

CRTs used for such displays have edges around their partial images, and these edges impair the continuity of the images.

(4) Purpose of the Invention The present invention was devised in view of the drawbacks of the prior art means as described above.2 The purpose is to obtain continuity between partial images when composing an image from a plurality of partial images. The object of the present invention is to provide an image synthesis method.

(5) Structure of the invention And this object is to combine the partial images of a plurality of partial image display devices into one image through the enlarging optical system for each partial image, so that the peripheral parts of adjacent partial images are Duplicate in -
This is achieved by displaying an image.

(6) Embodiments of the Invention The present invention will now be described in detail with reference to the accompanying drawings.

FIG. 1, FIG. 5, FIG. 2, and FIG. 3 show an embodiment of the present invention, and FIG. 1 shows a CRT 1. Figure 2 shows the screen 2 of each CRT.
This schematically shows a state in which each peripheral portion is closely provided at one half of the focal length of the corresponding convex lens 3. FIG. 3 is an electrical circuit diagram for distributing partial image signals to each CRT. As shown in FIG.

Partial image of the image to be combined (displayed on screen 2)
The imaging relationship of the optical system is determined so that adjacent partial images partially overlap.

Further, in FIG. 3, 4 is an image memory.

A digital image of the sample 5 is stored in the image memory 4 via a TV camera 6 and an analog-to-digital conversion circuit 7.

8 is a partial image memory 91 from the image memory 4.
This is a control circuit that sends partial image signals to -9, , l.

From each partial image memory, a corresponding CRTn (CRT, ---
-------The circuit system leading to the CRT (one of the three) is when the partial image of each CRT is viewed through its convex lens 3.

Each partial image signal is read out from a corresponding memory and synchronously supplied to a corresponding CRT so as to form one image.

Next, the operation mode of the present invention of the above-mentioned configuration device will be explained.

An image of the sample 5 to be projected is captured by a TV camera 6 and taken into the image memory 4 via an analog-digital conversion circuit 7.

The image signal in the image memory 4 is divided into partial image signals under the control of the control circuit 9 in the following manner, and the partial image signals are stored in the corresponding partial image memory 9.・・−＝−
9. Distribute to.

When the CRT screen is viewed through the convex lens 3, image dividing lines are set at predetermined positions (positions A"2 and B"2 in Figure 12) of the overlapping image portions of adjacent partial images. The image portion 5 of the other partial image that overlaps on the side of one partial image from this image dividing line, for example, B"2 in FIG.
For example, A2A in FIG. 2 is an image part signal for the B''3 part.

The image portion signals for the same image portion of the one partial image (in the above example, A of FIG.
The image is stored in a partial image memory that supplies partial image signals to the C and RT so as to be displayed in the 'lA'2 section).

Also, an image portion of the one partial image that overlaps on the other partial image side from the image dividing line.

For example, as an image part signal for the A'2A''3 part, 1, for example, an image part signal for the 82 B1 part in FIG.
In the above example, the same image portion of the other partial image is produced by the CRT for the one partial image.
The partial image signal is stored in a partial image memory that supplies a partial image signal to the CRT so as to be displayed on the CRT.

Such a distribution control relationship is created between each partial image, and the distributed partial image signal is stored in the corresponding partial image memory 9i-'-'9-.

Thus one partial memory 919. Each partial image signal stored in J is displayed on the corresponding CRT via the above-mentioned circuit system.

When displayed in this way, the parts of the projected image that overlap each car, for example, A'1-A"2 in FIG. 2, also B'
In 3B'2, the same image parts are displayed overlappingly without any disturbance, and at the same time, in A'2 A"3 of FIG.
``2B'1 also shows the same image parts overlapped without any disturbance.

Since A'2 and B'2 are always displayed at the same position, the joining part of the partial images of one composite image appears continuous.

In the above embodiment, the convex lens 3 has a focal length of 2
Although an example has been described in which the virtual image is placed on a plane at a position of 1/2, there is no limitation to this position as long as a virtual image can be projected, and the virtual image may be placed on two curved surfaces. In addition, not only convex lenses, but also Fresnel lenses, concave mirrors, etc. can be equally used.

(7) Effects of the Invention As described above, according to the present invention, partial images are caused to overlap in advance, and the same image portion is superimposed on the image portions on both sides of the trust line set in the overlapping portion. Since each partial image has a relationship that maintains the synchronization of the partial images on both sides of the Nobutsu line, it is possible to join the two composite images without causing any disturbance at the joint of the partial images. Parts can be viewed consecutively.

[Brief explanation of the drawing]

Figure 1 shows a state in which a plurality of CRTs are stacked in a matrix, and Figure 2 shows the front of the CRT with the screen of the CRT at one-half the focal length. A diagram showing a convex lens arranged within a plane. FIG. 3 is an electrical circuit diagram for distributing partial image signals to each CRT. In the figure, CRT 1 -------CRT, J is a cathode ray tube, 2 is a screen of the cathode ray tube, 3 is a convex lens, and 4 is an image memory. 8 is a control circuit, and 91-----9θ is a partial image memory. 101--401.1 is a digital-to-analog conversion circuit. Patent applicant: Fujitsu Co., Ltd. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] When the partial images of the plurality of partial image display units are combined into one image through the enlarging optical system for each partial image, the peripheral areas of two adjacent partial images display overlapping images. Image composition method.