求翻译：本文针对现有的三维阈值法进行了改进与拓展，提出了一种新的三维最大类间方差法，理论分析与实验结果表明，该方法不仅有更好的分割效果，且分割时间大幅减少。是什么意思？

In this paper, the existing three-dimensional threshold method to improve and expand, a new three dimensional maximum between-class variance method, theoretical analysis and experimental results show that the method not only has better segmentation effect, and the split time is significantly reduced

This document for an existing 3D THRESHOLD law has been improved and expanded, and a new 3D Max class difference between law and theory with analysis results of the experiment showed that the approach is not only a better split and split time significantly reduced.

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This paper focuses on the existing three-dimensional thresholding for improvement and expansion, proposed a new method of three dimensional maximum variance between clusters, theoretical analyses and experimental results show that, which not only have a better Iris, and split time substantially redu

This article has made the improvement and the development in view of the existing three dimensional threshold value law, proposed one kind of new three dimensional biggest kind of variance law, the theoretical analysis and the experimental result indicated, not only this method has the better divisi