At the basis of analyzing different boundary tracking algorithms, boundary point estimate algorithm based on angle and boundary point searching algorithm based on circumferential neighborhood extending were advanced to avoid tracking trap and to improve the robust of the boundary tracking algorithm.
通过分析不同算法的特点,提出了基于已知点夹角的边界点预估计算法和基于圆弧邻域扩展的边界点搜索算法,以避免跟蹤进入搜索陷阱,提高边界跟蹤对边界变化的鲁棒性。