High-precision three-dimensional reconstruction method and system, computer equipment and storage medium

• Main Authors: PENG XIANG, MIAO YUPEI, TANG QIJIAN, YANG YANG, LIU XIAOLI
• Format: Patent
• Language: Chinese; English
• Published: 15.06.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention discloses a high-precision three-dimensional reconstruction method and system, computer equipment and a storage medium, and the method comprises the steps of carrying out the position calibration of an imaging device; calculating an orthogonal absolute phase distribution diagram of each plane target; establishing an imaging device coordinate system, and fitting a corresponding polar line on the normalized plane; calculating an intersection point of a ray formed by the point of the polar line and the optical center of the imaging device and the corresponding plane target, fitting a projection ray and establishing a projection mapping coefficient table; projecting a pattern to a measured object, enabling an imaging device to collect a target image of the measured object, calculating and searching projection mapping coefficients corresponding to all absolute phases in the target image, and obtaining corresponding spatial three-dimensional point coordinates through calculation by means of the projec