The segmentation process consists of pre-segmentation based on region growing algorithm and region merging based on FNNHS.

分割过程由基于区域生长的预分割和基于FNNHS的区域合并两步构成。

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Virtual liver surgery simulation system consists of image pre-processing, image segmentation, volume estimation, the virtual cutting simulation and other functions.

肝脏虚拟手术仿真系统包括图像预处理、图像分割、体积估计，虚拟切割仿真等功能。

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The research of the character image pre-processing focuses on the gray-scale image filtering algorithm, the skew detection of image and character segmentation algorithm;

在字符图像预处理方面，重点研究了灰度图像滤波算法、图像的倾斜检测和字符分割算法；

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