Research for Rifling Recognition and Parameter Calculation on Gun Bore Image

Rifling recognition and parameter calculation on gun bore image are the basic of gun bore quality evaluation,which relate to the analyse precision and the position of gun bore flaw.Based on the characteristic of gray level distributing makes certain intersections of rifling and caculate the twist angle of rifling by date fitting.Gun bore image is divided to hatching of rifling,land of rifling and transitional region by image processing technology.The result demonstrates that this method has a good effect which is prepared for the segementation and the recognition on gun bore flaw image.