计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (8): 242-244.

• 工程与应用 • 上一篇    下一篇

改进Snake模型在病灶轮廓提取中的应用

朱春媚,周文辉   

  1. 电子科技大学中山学院 自动化工程系,广东 中山 528403
  • 收稿日期:2007-06-27 修回日期:2007-09-03 出版日期:2008-03-11 发布日期:2008-03-11
  • 通讯作者: 朱春媚

Application of improved Snake model in focus contour extraction

ZHU Chun-mei,ZHOU Wen-hui   

  1. Dept. of Automation Eng.,Uni. of Electronic Science Tech. of China Zhongshan Institute,Zhongshan,Guangdong 528403,China
  • Received:2007-06-27 Revised:2007-09-03 Online:2008-03-11 Published:2008-03-11
  • Contact: ZHU Chun-mei

摘要: 提出了用改进Snake模型-GVF(Gradient Vector Field)Snake模型来实现医学图像病灶轮廓的提取,结合高斯平滑滤波、交互式给定初始轮廓点等方法提高轮廓提取的精度。该方法与传统的轮廓提取方法相比,具有捕获范围广、对噪声不敏感的特点,特别适合噪声大、位置不确定、形状不规则的病灶轮廓的提取。实验表明,采用该方法能有效地提取病灶轮廓,在临床上有广泛的应用前景。

关键词: 医学图像, GVF Snake模型, 病灶轮廓提取

Abstract: Use GVF Snake model which is an improved Snake model to realize focus contour extraction,and improve precision by Gaussion filter and giving original contour interactively.Compared with classical contour extraction algorithm,this method has character of wide capture area and high noise immunity,so it fits well to focus contour with high noise,unfixed position and irregular shape.The result of experiment shows that this method can effectively extract the object contour of image and has good application potential.

Key words: medical image, GVF Snake model, focus contour extraction