Active Snake Algorithm on the Edge Detection for Gallstone Ultrasound Images

摘要：

For the edge detecting of gallstone in ultrasound images,traditional approaches can only obtain discontinuous contours,due to the speckle noise and attenuation of sound wave.To solve the problem,we develop an active snake algorithm for detecting the edge of gallstone in ultrasound images.The proposed snake algorithm is active,it is always minimizing its energy function and therefore exhibits dynamic behavior.After initializing the snake curve,the snake along the edge locks onto the regions-of-interest(ROI),according to the position and radius of gallstone,then it shrinks the curve automatically to the desired shape,guided by image internal forces and external constraint forces.Experiments show that the proposed snake algorithm can detect the object edge more accurately and intelligently.

关键词： Snake Gallstone Edge detection

作者: Ying-bin Hou Yang Xiao

作者单位: Institute of Information Science,Beijing Jiaotong University Beijing 100044,P.R.China

会议类型: 国际会议

会议名称: 9th International Conference on Signal Processing(第九届国际信号处理学术会议)(ICSP08)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-26（万方平台首次上网日期，不代表论文的发表时间）