医学图像分割腺体分割后 提取特征

医学图像分割后 要对腺体区域提取特征进而分类 请问腺体的形态大小不一致 如何处理 何种特征能较好描述?

http://xueshu.baidu.com/s?wd=paperuri:(d00b0fa9b5d70966ece6200f6253eb68)&filter=sc_long_sign&sc_ks_para=q%3D%E5%9F%BA%E4%BA%8E%E8%BE%B9%E7%95%8C%E7%89%B9%E5%BE%81%E5%AD%A6%E4%B9%A0%E7%9A%84%E5%8C%BB%E5%AD%A6%E5%9B%BE%E5%83%8F%E5%88%86%E5%89%B2&tn=SE_baiduxueshu_c1gjeupa&ie=utf-8&sc_us=15815405868299350199

http://blog.csdn.net/fanfangyu/article/details/50165119

http://blog.csdn.net/itodayer/article/details/51996093