%0 Journal Article
%T Efficient local asymmetric region detection in medical images<br>一种在医学图像中挖掘非对称区域的方法
%A ZHOU Yi-yan
%A DING Guang-tai
%A SONG An-ping
%A ZHANG Wu
%A <br>周益琰
%A 丁光太
%A 宋安平
%J 计算机应用
%D 2007
%I 
%X A new method for efficient local asymmetric regions detection in medical images was proposed by removing symmetric regions. First, the 3D image was aligned to its reflex using symmetry based rigid image registration algorithm. Then based on the registered image, a modified adaptive erosion operator was used to remove the approximately symmetric region. These two steps were iteratively repeated using a multi-resolution scheme to extract the final asymmetric region. The experiment to detect cholesteatoma in human head CT shows that the proposed algorithm detects asymmetric regions correctly in 80% cases.
%K asymmetry detection
%K medical image registration
%K erosion operator
%K multi-resolution scheme<br>非对称性检测
%K 医学图像配准
%K 溶蚀算子
%K 多精度模式
%K 医学图像
%K 挖掘
%K 对称区域
%K 方法
%K medical
%K images
%K detection
%K region
%K local
%K asymmetric
%K 检测成功率
%K 效果
%K 显示
%K 检测实验
%K 胆脂瘤
%K 头部
%K 人类
%K 迭代
%K 精度
%K 近似
%K 算子
%K 溶蚀
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=831E194C147C78FAAFCC50BC7ADD1732&aid=14E16CBD27430512B287465D01C11337&yid=A732AF04DDA03BB3&vid=DB817633AA4F79B9&iid=38B194292C032A66&sid=99A964928ADB4E67&eid=08B2E838F29A693A&journal_id=1001-9081&journal_name=计算机应用&referenced_num=0&reference_num=15