摘要
活动轮廓模型(Active Contour Model-ACM)由Kass等人在1987年提出,它是一种可形变模型,从预先设置的初始轮廓出发,在一定的约束条件下,通过逐步形变的搜索过程,最终获得一条预先定义的、一种能量函数最小化的轮廓线。逐步形变搜索的过程,通常有数值迭代、贪心算法、动态规划法等,其收敛到理想边界的时间长。采用一种对三轴对称Toeplitz矩阵,实现LU分解及追赶法解线性方程组的方法对参数活动轮廓模型进行优化,大幅度减少形变时间。
Active Contour Model-ACM was proposed in 1987 by Kass et al, it is a deformable model and a pre- defined, an the contour line of minimizing energy function is get by progressive deformation of the search process from a the preset initial contour under certain constraints in the model. Progressive deformation of the search process usually has a numerical iteration, greedy algorithm, dynamic programming method, which it is take more time to converges to the desired boundary. Active Contour Model-ACM is optimized by three axes of symmetry To- eplitz matrix of LU decomposition and method of solving linear equations through chasing method, this way greatly reduce the deformation time.
出处
《科学技术与工程》
北大核心
2013年第1期228-231,共4页
Science Technology and Engineering
基金
四川省过程装备与控制重点实验室资助项目(GKZY201102)
四川理工学院资助项目(2010XJKYL020)资助
关键词
活动轮廓模型
LU分解
追赶法
active contour model-ACM LU decomposition chasing method
作者简介
黄丹平（1969-），男，汉族，副教授，博士。研究方向：检测技术。E-mail：hdpyx2002@163．com。
