Method and device for constructing point cloud corresponding relation

• Main Authors: LIU SONG, TANG SUHAN, XIE XIAOYAO
• Format: Patent
• Language: Chinese; English
• Published: 07.04.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention provides a method for constructing a point cloud corresponding relation, and the method comprises the steps: extracting feature points in an original point cloud and a target point cloud as an original point set and a target point set through the fusion of local and global feature values, and constructing a sparse corresponding relation between the feature points of the original point set and the feature points of the target point set, the sparse correspondence is screened through rigid registration carried out through the sparse correspondence to obtain feature point pairs with the correspondence between the original point set and the target point set, local matching of neighbor points on the point cloud is carried out on the feature point pairs with the correspondence, and the correspondence of all points between the original point cloud and the target point cloud is obtained. The corresponding relation of all the points forms a point cloud corresponding relation. The problem that a traditiona