In recent years, close-range image matching is widely used in the areas of 3D-reconstruction, target recognition and image stitching, however, at present there are many deficiencies in most of those matching methods such as the single matching element and the single matching strategy, consequently restrict the improving of matching precision. Therefore, the study and amelioration of the matching methods in accordance with close-range images is very significative.
This paper studies the keystone and cha...