The second is to reckon the closest points by use of gliding window technique so as to reduce the computation cost in…

二是采用滑动窗口技术来寻找等值线上的最近点，在每一次收敛到局部最小的过程中都减少了最近点计算量。

The second is to reckon the closest points by use of gliding window technique so as to reduce the computation cost in reckoning the closest points in each time of converging to local minimums.

二是采用滑动窗口技术来寻找等值线上的最近点，在每一次收敛到局部最小的过程中都减少了最近点计算量。