The invention discloses a workpiece three-dimensional model construction and
processing method based on
binocular vision detection data, and the method comprises the steps: firstly carrying out the multi-angle synchronous scanning of a workpiece through employing a combination of a binocular camera and a line
laser, and obtaining the multi-view three-dimensional
point cloud data of the surface of the workpiece; and constructing a density sensing type dynamic registration framework, and performing distance weighted fusion and
outlier elimination on the registered multi-view point clouds in an overlapping region to generate a complete workpiece
point cloud. A feature retention type
point cloud direct modeling strategy is adopted, normal
vector optimization is performed on a down-sampling point cloud, key feature marks are manufactured, a lightweight three-dimensional model is generated through
color coding rendering, and a large amount of calculation of traditional
surface reconstruction is avoided. And finally, based on model coordinate
system calibration and point cloud fitting optimization, extracting functional characteristic parameters of edge straightness, datum plane flatness and hole
system position degree, and completing workpiece quality evaluation. According to the method, the
point cloud processing speed and the key feature analysis precision are improved, and the real-time requirement of industrial online detection is met.