摘要
对使用GVF Snake动态轮廓模型算法中两次迭代的时间复杂度进行了统计计算,并进行了力场分析,在此基础上对初始轮廓线设定位置进行了研究。实验结果表明,初始轮廓线的设置应避免跨越能量极小值,此时可以得到比较好的提取效果。GVF力场迭代的次数和轮廓逼近次数与时间成正比。
In the paper,the one hand,the statistics of the GVF Snake Active Contour Model about the two iterations are given.The other hand,through the analysis of the GVF field of forces,the research of the position about the initial edge is completed.The experimentation proves that the position of the initial edge should avoid acrossing the fields between the minimum of the energy,so that a better effect of edge-detection can be given.The more times about the production of GVF fieht of forces and the detection of the edge posited,the more time spent.
出处
《计算机工程与应用》
CSCD
北大核心
2006年第35期33-36,共4页
Computer Engineering and Applications
基金
山东省自然科学基金资助项目(Y2003G01)。
