对此轮廓线逐点计算曲率得到曲率线。
After smoothing the curve, the curvature of every point of the contour is calculated.
传统图象匹配算法利用相关法进行逐点计算，计算量大且做了许多无用功。
Normalized pattern matching is based on correlation and operated point by point with a large quantum of operation and low efficiency.
采用常规测井解释方法逐点计算单井剖面中各小层的渗透率往往很难达到精度要求。
It is very difficult to calculate this parameter from point by point conventional log interpretation for the layers in a single well section.
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