Rapid bidirectional structured light decoding method

• Main Authors: LIU YIPENG, XU BIN, HU DAN, ZHU CE, GONG JUN, LIU KAI, BIAN HAIDONG
• Format: Patent
• Language: Chinese; English
• Published: 16.07.2021
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The invention belongs to the technical field of structured light three-dimensional reconstruction, and particularly relates to a fast bidirectional structured light decoding method. According to the invention, the relation between the phase in the vertical direction and the phase in the horizontal direction is established through a calibration matrix, the absolute phase in the horizontal direction can be converted into the phase in the vertical direction, and the converted phase is used as the fundamental phase in the vertical direction, so that the fundamental grating pattern in the vertical direction can be further removed. Compared with the traditional method, the method provided by the invention has the advantages that required grating patterns are reduced, so that the decoding of the vertical phase and the horizontal phase of the object can be quickly realized. 本发明属于结构光三维重建技术领域，具体涉及一种快速的双向结构光解码方法。本发明通过标定矩阵建立了垂直方向和水平方向相位的关系，可以将水平方向的绝对相位转换为垂直方向，将转换后的相位作为垂直方向的基频相位，从而可以进一步去掉垂直方向的基频光栅图。与传统方法相比，本发明的方法所需光栅图减少，从