Point cloud completion method, system and application

The invention belongs to the technical field of computer vision, and discloses a point cloud completion method and system and application, and the method comprises the steps: firstly constructing an input point cloud prior information extraction unit; constructing an intermediate point cloud prior information extraction unit; constructing a point cloud refinement unit; judging whether the number of the output point cloud points meets the requirement or not, and if not, constructing the point cloud refining unit again until the requirement is met; generating a training set to train the point cloud completion model; and finally, complementing the incomplete point cloud by using the trained model. According to the point cloud completion method provided by the invention, the incomplete input point cloud and the general point cloud are fully utilized to complement the object shape prior information provided by the output point cloud of the network, and the prior information is integrated and processed through the