An adaptive contour algorithm for irregular shape extended target

In view of the extended target tracking with irregular shape, this paper proposes an adaptive contour algorithm based on star-convex Random Hypersurface Model. First, considering the unknown priori shape target with irregular extent, the adaptive contour method is proposed based on center contour distance. Then, on the basis of contour extraction method, we put forward a shape change detection method to cope with a sudden shape change in the process of target evolution. Simulations indicate that the adaptive algorithm can improve the estimation performance of target shape.