基于OTSU算法和带通滤波器的毛玻璃型肺结节检测  

Detection of Ground Glass Opacity Nodule based on OTSU Algorithm and Band-Pass Filter

作　　者：范立南[1] 胡向丽[1] 孙申申[1] 

机构地区：[1]沈阳大学信息工程学院,辽宁沈阳110044

出　　处：《沈阳大学学报（自然科学版）》2012年第6期43-46,共4页Journal of Shenyang University：Natural Science

基　　金：辽宁省自然科学基金资助项目(20102154);辽宁省教育厅科研计划项目(L2010376)

摘　　要：针对毛玻璃型肺结节成淡淡的模糊影,不容易用肉眼观察到,并且其灰度值介于肺实质和血管之间的特点,提出一种基于带通滤波器的毛玻璃型肺结节检测方法.首先用OTSU算法分割肺实质,然后用带通滤波器检测毛玻璃型肺结节.实验表明,此检测方法在所需运行时间和敏感性上都优于现有方法.Ground glass opacity nodule is fuzzy and could not be observed by eyes,and its grey value is between the lung parenchyma and vessel.Aiming at these factors,a method of detection is put forward based on band-pass filter.Firstly,lung parenchyma is segmented by using OTSU algorithm;then,ground glass opacity nodule is detected based on band-pass filter.Experiments show that the proposed method is better than existing methods in required running time and sensitivity.

关 键 词：毛玻璃型肺结节 肺实质 血管 带通滤波器 OTSU算法 

分 类 号：TP183[自动化与计算机技术—控制理论与控制工程]