求翻译：本文针对现有的三维阈值方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？

This article is to improve and expand the existing three-dimensional threshold, a new three dimensional maximum between-class variance method, theoretical analysis and experimental results show that the proposed method has better segmentation effect, and the split time is significantly reduced .

This document for an existing 3D threshold method has been improved and expanded, and made a new kind of 3D Max class variance between law and theory analysis and experimental results indicate that the approach is not only a better segmentation results and split times.

This article has made the improvement and the development in view of the existing three dimensional threshold value method, 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 div

This paper focuses on three-dimensional thresholding method for the improvement of the existing and development, have come up with 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 spli

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