Projector distortion correction method and device in structured light three-dimensional reconstruction

• Main Authors: XU BIN, ZHANG GEYOU, HU DAN, ZHU CE, LIU KAI, GONG JUN
• Format: Patent
• Language: Chinese; English
• Published: 01.11.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention provides a projector distortion correction method and device in structured light three-dimensional reconstruction, relates to the technical field of three-dimensional reconstruction, is applied to a camera-projector three-dimensional measurement system, and comprises the following steps: calculating an index value of a pre-stored distortion correction lookup table based on an obtained projector coordinate; obtaining a distortion correction parameter vector of the distortion correction lookup table based on the obtained projector coordinates and the calculated index value of the distortion correction lookup table; based on the obtained distortion correction parameter vector and the projector coordinate, the polynomial distortion model is adopted to calculate the distortionless coordinate corresponding to the projector coordinate, and compared with an iteration method in the prior art, the real-time performance of distortion correction is greatly improved while the same precision is achieved. 本申请提