Color projection module, stripe decoding method and device, medium, equipment and system

A projection module and color fringe technology, which is applied in the field of three-dimensional measurement, can solve the problems of many types of fringe colors, poor reconstruction integrity, and limited scanning efficiency, and achieve the effect of reducing the number of fringe colors, narrow decoding width, and improving scanning efficiency

Active Publication Date: 2022-07-01
SHINING 3D TECH CO LTD
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  • Claims
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Problems solved by technology

However, the more types of stripe colors, the more serious the interference by the surface texture of the object, and the more unstable the decoding; the more the number of stripes required for decoding a single stripe, the greater the interference by the discontinuous surface of the object, the higher the decoding error rate, and it is difficult to reconstruct smaller objects
Therefore, the existing color fringe coding technology is mostly limited to the uniqueness of each fringe code on a single image, resulting in many types of fringe colors or large decoding width, unstable decoding, and poor reconstruction integrity, which greatly limits the scanning efficiency

Method used

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  • Color projection module, stripe decoding method and device, medium, equipment and system
  • Color projection module, stripe decoding method and device, medium, equipment and system
  • Color projection module, stripe decoding method and device, medium, equipment and system

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[0081] In order to more clearly understand the above objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments may be combined with each other under the condition of no conflict.

[0082] Many specific details are set forth in the following description to facilitate a full understanding of the present disclosure, but the present disclosure can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present disclosure, and Not all examples.

[0083] Combined with the content in the background technology above, in order to ensure the uniqueness of the color code on a single image, the existing color stripe coding structured light three-dimensional measurement technology requires more stripe colors an...

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Abstract

The invention relates to a color projection module, a fringe decoding method and device, a medium, equipment and a system. The color projection module is used for projecting a color stripe pattern to the surface of a measured object, the color stripe pattern comprises m periodically repeated basic stripe sequences, m is a positive integer, the basic stripe sequences comprise k stripes with different colors, and n-bit stripe sequences formed by any continuous n stripes are unique; the total number l of stripes of the basic stripe sequence satisfies l < = 10, 10 = kn, and k and n are both positive integers equal to or greater than 2. Therefore, stripe coding and corresponding decoding are realized by using the periodically repeatable color stripes, the number of stripe colors can be reduced, the number of stripes required by decoding can be reduced, and improvement of decoding stability, simplification of the structure and improvement of scanning efficiency are facilitated.

Description

technical field [0001] The present disclosure relates to the technical field of three-dimensional measurement, and in particular, to a color projection module, a fringe decoding method, device, medium, device and system. Background technique [0002] In recent years, structured light 3D measurement technology has developed rapidly. It relies on non-contact, high-precision, high-efficiency measurement characteristics, and has been widely used in industrial testing, auxiliary medical care, electronic equipment, cultural relics restoration and other fields. Structured light 3D measurement technology is a 3D reconstruction technology that projects a coded pattern on the surface of the object to be measured, and acquires and analyzes the coded pattern modulated by the surface topography of the object to obtain the real three-dimensional topography of the object. Structured light 3D measurement technology can be divided into single-frame structured light and multi-frame structured...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/25
CPCG01B11/254G01B11/25
Inventor 陈瀚赵晓波黄磊杰马超
Owner SHINING 3D TECH CO LTD
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