region-dependent segmentation的用法和样例：
例句
- We present a novel segmentation randomized tree based classification algorithm in this paper.
本文提出一种基于区域分割的随机树分类算法。 - For personal identification based on imperfect irises, accurate iris segmentation is helpful to the feature extraction, classification and identification.
摘要对于不完美的个人身份鉴别，高精度的虹膜区域分割有助于后面的特征提取和分类识别。
