A Novel Extraction Algorithm of Moving Target in Dynamic Image Sequences

Moving target extraction plays a prominent role in the whole target tracking process in image sequences with dynamic scene. This paper presents a new approach for moving target extraction. In order to automatically extract moving target and improve the accuracy, level set method is applied to extract moving target contour. Firstly, moving target is detected by difference algorithm. Secondly, Chan-Vese level set model is used to obtain the contour. The holes and discontinuous regions are filled through closing operation of mathematical morphology. According to the coordinates of the horizontal and perpendicular vertexes of binary image, the moving target is extracted. Finally, experiment results of the standard image sequences coastguard demonstrate that the proposed algorithm of this paper is highly adaptive and accurate.