The Research And Implementation Of Key Technology Of Irregular Fragmental Objects Matching Methods

In the problem of irregular fragmental objects matching, because of large number of fragmental objects , the hard,tedious and repetitive work makes workers can not bear it, so how to liberate workers from repetitive work is an urgent task of the problem of fragmental objects reversion, how to use computer to finish matching is one of the important problem of many archaeologists and criminologist at present. In this paper, on the basis of studying the traditional methods of corner detection , traditional matching methods, a planar irregular fragmental corner detection method and a fragmental objects matching method are brought forward fit for this task, at the same time, three dimensional irregular fragmental matching method are studied. The research work mainly includes the following five aspects. Firstly, general condition of edge detection and several typical edge detection methods of gray image is introduced, and researching scattering dots edge detection method is emphasized, aiming at the thing that scattering dots edge detection absent a method of the minimum chimb, It is made up and perfected. So that fisnish gray image edge detection, and the edge detection is fit for the next work of irregular fragmental objects matching. Secondly, study of discrete dots close curvature calculation and corner detection methods. Aiming at the thing that at present the calculating curvature methods of discrete dots are rough, which is not fit for the calculating curvature of fragmental objects, combined the interpolant curve method, a new method of curvature calculation is given. research the corner detection methods, the respective advantages and disadvantage of single scale corner detection methods and multi-scale corner detection methods are analyzed, and considering the advantages of the two methods and construct a new corner detection method is put forward. Thirdly, the interior and exterior two dimensional fragmental objects matching methods are researched, aiming at the reason that at present the calculating amount of fragmental objects matching methods is very large, based on the character points detection and by means of invariants of curve , a new matching method is put forward which conquer this disadvantage that the amount of calculation is very large. Fourthly, a prototype system of two dimensional irregular fragmental objects is researched. Finally, on the base of studying of principle of three dimensional curve matching, Three invariants is put forward which have close correlative to curvatures and torsions of curve dots, and a three dimensional irregular fragmental objects matching method based on characteristic points is put forward.