Packing box geometric dimension measuring method based on structured light camera

The invention relates to the technical field of packaging box dimension detection, and discloses a packaging box geometric dimension measurement method based on a structured light camera, and the method comprises the following steps: S1, correcting the plane of a workbench, so as to obtain a measurement reference plane; s2, acquiring a depth map of a to-be-detected packaging box; s3, positioning a to-be-detected packaging box according to the depth map obtained in the S2; s4, geometric dimension measurement: S41, reconstructing a point cloud according to the depth map data of the to-be-measured packaging box obtained by positioning the position of the to-be-measured packaging box in the step S33, and calculating a to-be-processed point cloud according to the correction matrix obtained in the step S1; s42, calculating the length and the width of the to-be-measured packaging box by adopting a point cloud mapping two-dimensional plane through edge extraction and a detection algorithm of solving a minimum enclosi