Multi-source sequential hierarchical coding method based on color structured light

Abstract

The invention relates to a multi-source sequential hierarchical coding method based on color structured light. The method is characterized in that for a color coded structured light pattern, used color code information values (R, G, B), that is, color three-channel information values are respectively a code value corresponding to a red color code (R, G, B) = (255, 0, 0), a code value correspondingto a green color code (R, G, B) = (0, 255, 0), a code value corresponding to a blue color code (R, G, B) = (0, 0, 255), a code value corresponding to a cyan color code (R, G, B) = (0, 255, 255), a code value corresponding to a magenta color code (R, G, B) = (255, 0, 255), a code value corresponding to a yellow color code (R, G, B) = (255, 255, 0), a code value corresponding to a white color code(R, G, B) = (255, 255, 255). The method prevents color texture color information from interfering with color structured light.

Description

technical field [0001] The invention relates to a multi-source time-series layered encoding method based on color structured light, which belongs to the technical field of computer vision. Background technique [0002] In the research of structured light 3D reconstruction technology, in order to improve the accuracy and efficiency of 3D reconstruction, the coding method of structured light has transitioned from the multi-frame Gray phase-shift coding method to the single-frame color coding method, and the single-frame color coding method uses the color code The rich information to set the uniqueness of the code value. However, the single-color-coded structured light method is usually applied to light-colored or white objects. If the surface texture of the object to be tested is rich in color, it will cause color information interference to the color-coded color code value. Therefore, in the later decoding process In , severe reconstruction bias occurs. In order to avoid co...

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Problems solved by technology

Although the above method can reduce the interference problem of the color code caused by the texture color of the object to be tested to a certain extent, it more or less involves the problem of pre-calibration of the color channels of the projector and camera in the early stage. There will be various problems in the pre-calibration process. The interference of external factors, but also related to the auxiliary projected image

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