بررسي و بهينه سازي روش هاي تخمين حركت با كاربرد در بازسازي دنباله هاي تصوير

The existence of blotches in old movies is one of their main degradations. The intensity of these blotches is almost constant and they do not appear in the same location in two successive frames. To detect and restore these blotches, the information of the previous and subsequent frames is used. In order to obtain a more precise estimation of the original intensity, the probable motion in the field should he considered and the estimation should he applied after implementing the motion compensation process. In this paper, after giving a performance analysis of the most efficient block motion estimation methods for both degraded and not degraded images, a new search schedule method for block matching is proposed. This algorithm uses the motion estimation and a curve search method to achieve the desirable precision by enlarging the motion search area without a noticeable increase in the search time. Furthermore, by applying the proposed algorithm in the first stage of a multiresolution analysis, more efficient results have been obtained when compared with other available algorithms.