SU1357904A1 - Method of forming stereoscopic picture of object surface - Google Patents

Abstract

The invention relates to optical information processing and allows to increase the accuracy and uniqueness of the restoration of the shape of the object surface. A subject plane is photographed from three points of space that are not lying on one straight line. Received. images 2 are projected onto a single screen 1 in a direction identical to the direction of photo registration using light sources 3 of three primary colors. Screen 1 is shifted parallel to itself. The projected image in each channel turns out to be cut in one of three colors - red, blue or green. When combined, the three colored dots create a neutral gray color. A gray pattern appears on screen 1 for the dots corresponding to the section of the latent volumetric image. The remaining points are displayed in tricolor and unsharp. I scht. (C (L with SP with about 4

Description

The invention relates to optical instrumentation, namely, optical information processing and can be used in image processing systems, 4 ometmetry.

The purpose of the invention is to improve the accuracy and unambiguity of restoring the shape of the object surface.

The drawing shows the scheme of implementation of the proposed method in terms of the projection: stereo trims.

To implement the proposed method, the halftone of the object surface is primarily provided by illuminating it, if necessary, with the help of an additional source, and the distribution halftone should be variable over the surface area (for example, there should be no noticeable areas of constant illumination). Then, the subject surface is photographed from three points of space that are not lying on one straight line. Next, all three obtained images 2 are projected onto a single screen 1, and the projection directions are oriented identically to the photo registration directions. During the projection, sources of non-coherent light are used in the three primary colors of red, blue, green (for each projection channel, their own color) condensers 1 4 and projection lenses 5. At the same time, the projection screen is sequentially shifted parallel to itself along the Z axis.

As a result of these operations, the projected image in each channel is painted in one of three colors - red, blue or green, and when three color dots are combined

Editor I.Shulla Order 5995/47

Compiled by V. Kravchenko

Tehredm.Didyk Proofreader S.Shekmar

Circulation 522 Subscription of the UPPAI USSR State Committee for Inventions and Discoveries P3035, Moscow, K-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

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neutral sulfur is created. Since the placement of three projectors repeats the size of lenses when shooting, the combination of three points — a gray pattern appears only for points corresponding to the section of the latent volumetric image by the screen plane 1. The images of the points udzhshchenny from this section on the screen are three-colored and unsharp. Moving the screen 1 parallel to itself corresponds to the distant sections of the spatial image. In this case, the gray contours correspond to the points belonging to this section, and the colored contours - to remote from it.

Claims (1)

Invention Formula The method of forming a volume image of the object surface in incoherent light, including photo registration of the illuminated object surface from two points in space and the subsequent projection of the two obtained images onto a single screen, which is indicated by the fact that They also take photographs from a third point in space, not lying on the same straight line with the first two, and then projecting everything onto a single screen. three images, the projection directions being identical to the directions of the photoreduction and ghosting, each of the three images being projected in one of the three primary colors — red, blue, or green — and the projection screen is sequentially shifted parallel to itself.