关键词: VSnakes, 轮廓松弛, 形状失真度

Abstract: A low shape distortion algorithm for VSnakes was presented. Two new energy expressions were defined, one of them spaced the points more evenly on the contour,the other expression strengthened the curvature constraint of the candidate contour, which not only kept its shape similar to the current contour, but also made contour more smooth, thus reduced the shape distortion of contour. In addition, the contour-relaxation process was simplified to reduce the complexity of computation.

Key words: VSnakes, contour-relaxation, shape distortion