Method, system and terminal for measuring indentation depth and indentation width of packaging box

The invention provides a method, a system and a terminal for measuring the indentation depth and the indentation width of a packaging box, and particularly relates to a method for measuring the indentation depth and the indentation width of the packaging box, and the method comprises the steps: obtaining dense point clouds on the surface of indentation paper obtained by scanning the to-be-measured packaging box indentation paper through laser scanning equipment; performing feature extraction and plane segmentation on the dense point cloud by using a preset algorithm to obtain a to-be-detected indentation region and an indentation paper plane region; fitting the to-be-measured indentation area to obtain a fitting straight line; fitting an indentation paper plane area adjacent to the to-be-detected indentation area to obtain a fitting plane; constructing a first auxiliary plane perpendicular to the fitting plane and the fitting straight line; and cutting the point cloud of the to-be-measured indentation area by