The invention relates to the technical field of
computer vision and industrial
automation, in particular to a shoe sole three-dimensional gluing contour extraction
system and method based on vision single-line
laser, and aims to solve the problems that virtual calibration target spots cannot be accurately generated based on shoe sole geometry, the positions and sizes of the target spots are difficult to determine by combining curvature extreme values and
principal component analysis in the prior art, and the production cost is low. The problem that a double-
branch deep learning model cannot be adopted to fuse feature prediction transformation, and the re-projection error is increased is solved; a virtual calibration target spot is automatically generated based on sole geometry through a
feature fusion calibration module, a grid is generated through
point cloud processing and Poisson reconstruction, the position and size of the target spot are determined by combining a curvature extreme value and
principal component analysis, a corresponding relation is established by utilizing two-dimensional and three-dimensional
feature matching, initial alignment is realized through ICP and re-projection error optimization, and the target spot position and size are determined. A double-
branch deep learning model is adopted to be fused with feature prediction transformation, iterative optimization is carried out through space consistency errors, and re-projection errors are reduced.