Encoding method of light image with color structure

Abstract

The invention relates to an encoding method of a light image with a color structure, belonging to the technical field of computer image processing. The encoding method of a light image with a color structure is designed by adopting the relevance of a topological structure and an internal structure, and the relevance among different atom areas and in the atom areas of a light encoding image obtained by shooting with the color structure is stronger, which is beneficial to the correct decoding of the light encoding image with the color structure. The light encoding image with the color structure can be projected on any object and has no strict limit to a curved surface for receiving the light encoding image with the color structure. The characteristic information of the whole space can be obtained by using one light encoding image with the color structure, thus the invention has strong real time and high identification precision rate.

Description

technical field [0001] The invention relates to a color structured light image coding method, which belongs to the technical field of computer image processing. Background technique [0002] In non-contact 3D measurement technology, visual 3D measurement technology is an effective means to obtain 3D information of objects. It does not need to touch the surface of the measured object, and restores the 3D shape of the object based on the graphic image obtained by the 3D vision sensor. It has the characteristics of fast speed, high efficiency, high degree of automation and low cost. At present, the main development directions of visual three-dimensional measurement technology include structured light, stereo image, Moire method, holographic method, laser radar and other methods. Among them, the structured light method has the advantages of low cost, high resolution and fast speed, and is recognized as the It is the most practical optical non-contact three-dimensional measureme...

AI Technical Summary

Problems solved by technology

In previous studies, the color structured light coding method was mostly used for spatial coding and direct coding, and most of them can be used for the measurement of dynamic objects, but due to the influence of the color fidelity and resolution of the CCD camera, it is easy to be affected. Due to the influence of the CCD camera, the ideal effect and accuracy cannot be obtained. It is not easy to find a clear and unambiguous correspondence. The measurement accuracy of three-dimensional objects is not high, and it is difficult to use for the measurement of precise objects.

Among the several color structured light encoding methods proposed recently, the accuracy of measurement has been improved, but there are also problems that color confusion is difficult to identify due to the use of more than three colors, and usually the sampling density and resolution are not good. high

For the color structured light coding technology, it is not yet possible to eliminate the impact of the replacement of the camera hardware on the system

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