一种用于岩心序列图像轮廓提取的改进Snake算法

Improved Snake algorithm for contour extracting of rock core sequential images

摘要:

针对岩心序列图像的轮廓提取,提出了一种改进的Snake算法。对序列图像第1帧手动初始化轮廓点,如果相邻轮廓点之间距离大于给定阈值,则自动插入新的点,对于每一轮廓点,按照一定规则计算其搜索半径,然后找出搜索半径内的能量最小的点代替原始点。前一帧得到的结果又作为后一帧的初始点进行轮廓提取,从而得到整个序列图像的轮廓。实验结果表明,本算法具有简单、实用、实时性强等特点。

Abstract:

An improved Snake algorithm is proposed for contour extracting of the rock core sequential images.The contour points for the first frame of the sequential images were manually initialized.If the distance between the adjacent points was greater than the given threshold,a new point would be inserted automatically,for each contour point,its search radius would be calculated,and the original point would be replaced by the minimal energy point in the search radius.Then the next frame with the previous contour po...