Contour point cloud coordinate acquisition method

• Main Authors: XU ZHENGHAO, LUO ZHIQIANG, WANG TAOZHANG, YANG CHANGQI, AI BAIYUN, GUO JUTAO, JIN YONGQIAO
• Format: Patent
• Language: Chinese; English
• Published: 21.04.2020
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The invention discloses a contour point cloud coordinate acquisition method. According to the method, a contour point acquisition device is fixed on a rope-driven platform, a marking point is pasted on the surface of the platform, the marking point is tracked by a visual tracking device, and pose information of the platform corresponding to the marking point can be recorded in real time. Workpiececontour point cloud coordinate information acquired by the contour point acquisition device can be converted into the coordinate information of the visual tracking device through the pose relationship of the tracking device. A rope driving device drives the contour point acquisition device to acquire all contours of a workpiece according to a set path, and feeds back all contour coordinate valuesto the visual tracking device, so that all point cloud acquisition of the contours of the workpiece is completed. Through the method, the size of the driving device can be reduced, the method is suitable for point cloud colle