Line structured light annular splicing accurate fusion method based on affine space discrete transformation

• Main Authors: HUANG RUI, GE YINGFEI, LIU TIANYAO, DENG ZHENGPING
• Format: Patent
• Language: Chinese; English
• Published: 22.12.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention discloses a line structure light annular splicing accurate fusion method based on affine space discrete transformation. The method is applied to a line structure light sensor in annular layout to collect point cloud data. The method includes the steps that a line structure light sensor collects calibration block section point clouds; the three-coordinate measuring machine obtains a theoretical point cloud corresponding to each frame of section point cloud; converting the three-dimensional theoretical point cloud and the scanning point cloud into two-dimensional point cloud; performing fusion registration on the scanning point cloud and the theoretical point cloud of each frame of point cloud through an intersection point of a contour straight line and an angular bisector of an inferior angle; any sensor is selected as a main line structure light sensor, and then the main line structure light sensor is transformed to a coordinate system of a first section of the main line structure light sensor t