A random encoded pattern generation method and device for structured light encoding

A technology of random coding and pattern generation, applied in image coding, using optical devices, image communication, etc., can solve problems such as error-prone algorithms

Active Publication Date: 2018-12-11
NINGBO YINGXIN INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the application field of computer vision, for the information that humans and animals can easily analyze from one or more images, computer vision algorithms are prone to errors.

Method used

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  • A random encoded pattern generation method and device for structured light encoding
  • A random encoded pattern generation method and device for structured light encoding
  • A random encoded pattern generation method and device for structured light encoding

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Embodiment Construction

[0047] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0048] In one embodiment, using figure 1 The schematic flow chart can generate a random coding pattern, the coding primitive of the random coding pattern has good random characteristics, and satisfies the unique identification characteristics of the window, that is, when the random coding pattern is projected onto the three-dimensional space or the target object by the projection device, then Each feature point on the projected three-dimensional space or the surface of the target object can be uniquely identified, solving the identification problem of single-eye, binocular or multi-eye matching in the depth decoding process. The following steps are included in this flowchart:

[0049] S100. Determine the resolution of the random coding pattern, and obtain a random probability distribution map with the same resolution.

[0050] S200. Obtain the position of t...

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Abstract

The invention discloses a random encoded pattern generation method for structural light encoding. The method utilizes a random probability distribution map to add encoding primitives one by one undera certain distribution rule and generates a random encoding pattern satisfying the window uniqueness distribution requirement. The random encoded pattern can be separately used as a structured light encoded pattern or as a basic pixel of the structured light encoded pattern for mosaic expansion. The structured light encoded pattern obtained by the method is projected by a projection device according to a certain angle of view, and can be used for spatial encoding and feature calibration of a three-dimensional space or a target object for depth identification. The invention also discloses a random encoding pattern generation device for structural light encoding. The random encoding pattern generated by the method or the device of the invention has high randomness and supports a plurality ofencoding primitives of different shapes and sizes, and the invention can solve the identification problem in the depth decoding process of monocular, binocular or multi-eye structured light.

Description

technical field [0001] The present invention relates to the technical fields of 3D depth camera, computational vision, depth perception and three-dimensional reconstruction, in particular to a structured light encoding method and equipment for marking space projected in active stereo vision, especially a structured light encoding method for A method and device for generating a random code pattern. Background technique [0002] Vision is the most direct and effective way for human beings to perceive the external environment. The research of computer vision is to hope that the computer can perceive many states in the environment like human vision, such as the color, shape and surface texture information of the object, the environmental position of the object and the movement of the object, etc. But in the application field of computer vision, for the information that humans and animals can effortlessly analyze from one or more images, computer vision algorithms are prone to e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T9/00
CPCG06T9/00G01B11/2513G01B11/22G06F17/18H04N13/254
Inventor 葛晨阳姚慧敏周艳辉
Owner NINGBO YINGXIN INFORMATION TECH
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