The invention provides a blind area
point cloud self-adaptive completion method and a
welding seam automatic tracing method applying the same, and the method comprises the following steps: starting a camera, and collecting 3D
point cloud data of a target object;
processing the 3D
point cloud data, and analyzing an area where a target blind area to be supplemented is located; the execution mechanism is controlled to drive the
laser contourgraph to move to the position near the target blind area, the execution mechanism is controlled to drive the
laser contourgraph to scan the target blind area, and contour data of the target blind area are obtained; and identifying the
welding seam in the blind area according to the collected blind area data. According to the method provided by the invention, the area of the blind area caused by the limited visual field of the camera is analyzed, the blind area range is scanned by using the
laser contourgraph, the blind area point cloud of the method is adaptively completed, and the complete feature information including the blind area is obtained by combining the global shooting of the camera with the local fine scanning of the contourgraph. And features in blind areas such as
welding seams are automatically tracked based on complemented data.