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《Journal of Northeastern University(Natural Science)》 2009-02
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An Improved Lung Segmentation Algorithm for Chest CT Images

MENG Lu1,ZHAO Da-zhe2,JIA Tong1,2,ZHAO Hong2 (1.School of Information Science & Engineering,Northeastern University,Shenyang 110004,China;2.The Software Center,Northeastern University,Shenyang 110004,China.)  
To segment accurately the pathologic lung images,the conventional segmentation algorithm for lung was analyzed and improved by introducing the wavelet transform and mathematical morphology into the algorithm,i.e.an image was decomposed via wavelet transform,then each and all of its components after decomposition were mended in different ways through mathematical morphology.Morphologically the closed and open operation should be done for LF and HF components,respectively,thus modifying the basic traits of an image on a proper scale without detailed traits obscured and,after image restructuring,obtaining the ideal lung region.The improved algorithm was applied to the segmentation of 36 sets of clinical HRCT data provided by hospitals,and its results were compared with those from manual segmentation and conventional algorithm.It was found that the improved algorithm can provide accurate segmentation so as to make the average sensitivity of lung segmentation higher.
【Fund】: 国家自然科学基金资助项目(60671050)
【CateGory Index】: TP391.41
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 SUN Hong-xing1,3, WANG Rong2, ZHAO Nan-nan1,3, XU Xin-he1 (1.Institute of Artificial Intelligence and Robotics, Northeastern University, Shenyang 110004, China; 2.College of Information Security & Engineering, Chinese People’s Public Security University, Beijing 100038, China; 3.School of Electronics and Information Engineering, Anshan University of Science and Technology, Anshan 114044, China);Edge Detection Algorithm Based on Lifting Wavelet and Morphology[J];Journal of System Simulation;2006-S2
【Co-citations】
Chinese Journal Full-text Database 2 Hits
1 LIN De-gui,HE Jian-nong,ZHENG Yu-yan(College of Mathematics and Computer Science,Fuzhou University,Fuzhou 365002,China);Lifting Wavelet Image De-Noising Based on Watershed[J];Computer Technology and Development;2008-08
2 WANG Ya-jie1,2, LI Dian-qi1,3, XU Xin-he1 (1. School of Information Science & Engineering, Northeastern University, Shenyang 110004, China; 2. Engineering Practice Center, Shenyang Institute of Aeronautic Engineering, Shenyang 110034, China; 3. School of Mechanical Engineering, Shenyang University of Technology, Shenyang 110023, China.);Dual-tree Complex Wavelet Transform Based Night Vision Images Fusion[J];Journal of System Simulation;2008-10
【Secondary Citations】
Chinese Journal Full-text Database 2 Hits
1 Zhang Hongyan, Zhang Dengpan (Department of Mechanical Engineering, Jiaozuo Institute of Technology, Jiaozuo, Henan 454000, China)[;The Application of Two Dimensions Wavelet in Image Edges Detection[J];Engineering Science;2003-04
2 ZHAO Yu-liang, ZHAO You-geng, LI Kai-duan, LI Ying-jie (Qingdao Branch, Naval Aeronautical Engineering Academy, Qingdao 266041, China);Edge detection of complicated aerial images based on wavelet transform[J];Opto-electronic Engineering;2002-04
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