The origin algorithm has the same time complexity with the improved one, but the latter achieved a notability in dealing with the problem of outliers fault-making on boundary cell.

• 另外,本文通过实例,对改进的算法进行了验证,结果证明新旧两种算法具有相同的时间复杂度,但新算法在避免边界单元格处孤立点误判问题上达到了明显的效果。