Method and equipment for realizes structured light in high performance based on uniqueness in field

An implementation method and technology of structured light, applied in the direction of using optical devices, measuring devices, instruments, etc., can solve the problems of low reconstruction efficiency, high use cost, slow three-dimensional perception speed, etc., to achieve high reconstruction efficiency, convenient and free manipulation , 3D perception fast effect

Inactive Publication Date: 2006-07-05
陈胜勇
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Problems solved by technology

[0006] In order to overcome the deficiencies of the existing structured light implementation methods and devices, such as slow three-dimensional perception speed, low reconstruction efficiency, and high cost of use, the present invention provides a high-efficiency structured light based on domain uniqueness with fast three-dimensional perception data and high reconstruction efficiency. The realization method and its device

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  • Method and equipment for realizes structured light in high performance based on uniqueness in field
  • Method and equipment for realizes structured light in high performance based on uniqueness in field
  • Method and equipment for realizes structured light in high performance based on uniqueness in field

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] see figure 1 , a method for realizing highly efficient structured light based on domain uniqueness, the method is to form highly efficient structured light in a light projection device 1 for three-dimensional reconstruction, comprising the following steps:

[0031] (1), select different color collections: P={c1, c2, c3, ... ci, ...}, i≥3, wherein ci represents a light wave or color of a specific wavelength, and each light grid is composed of a color representation;

[0032] (2), select elements from the color set, and carry out a specific coding combination to generate a light template, and adjacent light grids form a code word, and the field of the code word has uniqueness;

[0033] (3), one-to-one correspondence of the code words to the light projection device to output light beams;

[0034] (4) Corresponding the obtained image to the light template and cal...

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Abstract

The invention is a domain uniqueness-based method for realizing high efficiency structural light, producing a high efficiency coding phototemplate for a light projector in the structural light system and using the phototemplate for 3D reconstruction and comprising the steps of: (1) selecting different colors to compose a code set; (2) selecting elements from the code set, expressing each optical lattice by one color, making special code combination to produce the phototemplate and composing adjacent optical lattices into a coded word, which has the domain uniqueness; (3) corresponding the coded words to input and output beams of the light projector one to one; (4) corresponding the obtained image to the phototemplate to calculate the 3D coordinates. And a device for realizing the high efficiency structural light comprises light projector, vidicon and microprocessor, where the microprocessor comprises color set module, coding module, code word decoding module and 3D coordinates calculating module. The invention has high 3D sensing speed, high reconstructing efficiency and low use cost.

Description

(1) Technical field [0001] The invention relates to a three-dimensional measurement method based on computer vision, a mathematical space coding method and a device thereof. This method is mainly used for surface reconstruction of three-dimensional objects, and has a wide range of applications, typically including workpiece detection in the manufacturing industry, scene depth perception, reverse engineering, object recognition, etc. (2) Background technology [0002] In computer vision-based 3D perception technology, binocular stereovision (stereovision) is a common method, which obtains scene images from two or more viewpoints and establishes a point-to-point matching relationship to determine 3D position parameters. This triangulation method is feasible (albeit with certain accuracy and reliability limitations) if the cameras have been calibrated beforehand. However, the correct matching between such image points is actually very difficult when considering the epipolar co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/02G01B11/02
Inventor 陈胜勇姚春燕
Owner 陈胜勇
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