Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Computer Engineering and Applications》 2012-27
Add to Favorite Get Latest Update

Medical CT image denoising method based on nonsubsampled Contourlet transform

WANG Hao1,2,KANG Xiaodong1,LIU Lingling1,GENG Jiajia1 1.School of Medical Imaging,Tianjin Medical University,Tianjin 300070,China 2.Department of Interventional Radiology,Affiliated Hospital of Hebei University,Baoding,Hebei 071000,China  
To overcome the Contourlet transform non translation invariance and spectrum aliasing defects,this paper presents a method based on nonsubsampled Contourlet transform for medical CT image denoising method.The noisy CT images are conducted by nonsubsampled Contourlet transform.Transform coefficients are obtained from different scales and different directions.Using Context model,subband of each scale and each direction is graded.Different classification uses the corresponding threshold denoising.Experiments show that this method is suitable to processing the medical CT image which contains more Gaussian noise.Compared with other methods,the PSNR value is improved,the image details are better retained,and CT image quality is improved.
【Fund】: 国家自然科学基金(No.60603027);; 天津市应用基础研究计划(No.05YFJMJC11700)
【CateGory Index】: TP391.41
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【References】
Chinese Journal Full-text Database 1 Hits
1 WANG Wei,WU Guo-hua,SHENG Yi-chen,ZHANG Song-fang,JIANG Ma-wei*(Oncology Department,Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine,Shanghai,200092,P.R.China);Study for Cone-Beam CT Images Denoising Method Based on MATLAB[J];Chinese Journal of Medical Physics;2013-04
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 Department Hefei Second people's Hospital,Hefei 230011,Anhui LIANG Lin,WANG Si-wei,CHEN Qi-bao;The diagnostic efficacy of multi-slice spiral CT high-resolution and overlapping scanning in nasal bone fracture[J];Journal of Anhui Health Vocational & Technical College;2007-05
2 The Third People's Hospital of Hefei,Hefei 230022,Anhui JI Peng,GONG Bang-guo,ZHOU Xiao-qin,LIU Yun-feng;CT diagnosis of abdominal closed injury(46 cases analysis)[J];Journal of Anhui Health Vocational & Technical College;2007-05
3 Department of CT and MRI, Lu'an People's Hospital, Lu'an 237005,Anhui LUO Ling;Spiral CT Diagnosis and Its Clinical Value in Stomach Cancer[J];Journal of Anhui Health Vocational & Technical College;2009-02
4 Liang Lin Department of CT,Hefei Second People' Hospital,Hefei 230011;Applicance of MSCT in the emergency of abdominal visceral trauma(A report of 77 cases)[J];Anhui Medical Journal;2009-10
5 Li Liangshan CT Room,Lujiang Chinese Medicine Hospital,Lujiang 231500,China;Clinical significance of CT diagnosis and grading of splenic trauma[J];Anhui Medical Journal;2011-07
6 LIU Yun-feng(CT Section,The 3rd Hospital of Hefei,Anhui Province 230022,China);HRCT diagnosis of bronchiectasis(an analysis of 43 cases)[J];Anhui Medical and Pharmaceutical Journal;2008-04
7 HU Wei-Dong1, LIAO Mei-Yan2, CHEN Jia-Kuan1 1. Department of Oncology/Cancer Prevention and Treatment Center, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, 430071, P. R. China 2. Medical Imaging Center, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, 430071, P. R. China;Clinical Analysis of Solitary Pulmonary Nodule Measuring Less Than 10 mm[J];Chinese Journal of Cancer;2006-02
8 YIN ZHI-WEI,JIANG SHU-XIA,XIN XI-DI,et al (Department of Radiology,The Affilited Hospital of Qingdao University Medical College,Qing-dao 266003,China);MULTIPHASIC CONTRAST-ENHANCED CT SCAN IN THE DIAGNOSIS OF HEPATIC ABSCESS[J];Acta Academiae Medicinae Qingdao Universitatis;2009-02
9 WANG XIN,LIU JI-HUA,JI QING-LIAN,et al(Department of Radiology,The Affiliated Hospital of Qingdao University Medical College,Qingdao 266003,China);SPIRAL CT DIAGNOSIS OF ISLET CELL TUMOR:REPORT OF 32 CASES[J];Acta Academiae Medicinae Qingdao Universitatis;2010-03
10 LV Wenwu1,LV Yunmei2 (1.Department of CT,2.Department of Ultrasound,the First Affilicated Hospital, Baotou Medical College,Baotou 014010,China);A Study of the Diagnostic Value of 64-detector Spiral CT Angiography in Aortic Dissection[J];Journal of Baotou Medical College;2012-01
【Co-references】
Chinese Journal Full-text Database 4 Hits
1 ZHANG Hua 1 ,HUANG Kui-dong 2 ,SHI Yi-kai 1 ,LI Ming-jun 2 1.School of Mechanical Engineering,Northwestern Polytechnical University,Xi’an,710072,China 2.Key Lab of Contemporary Design and Integrated Manufacturing Technology(Northwestern Polytechnical University),Ministry of Education,Xi’an,710072,China;Ring Artifact Correction Method Based on Air Scan for Cone-beam CT[J];Computerized Tomography Theory and Applications;2012-02
2 PAN Chun-hua,ZHU Tong-lin,LIU Hao.1.College of Informatics,South China Agricultural University,Guangzhou 510642,China 2.School of Computer Science & Engineering,South China University of Technology,Guangzhou 510640,China;Image quality assessment method based on HVS[J];Computer Engineering and Applications;2010-04
3 FANG Hui,ZHENG Chun-yan,YIN Zhong-ke,WANG RuiSchool of Information Science & Technology,Southwest Jiaotong University,Chengdu 610031,China;Method for image denoising based on improved contourlet transform[J];Computer Engineering and Applications;2010-17
4 Su Jinshan1,2) Feng Yan1)1)(School of Electronic and Information,Northwestern Polytechnic University,Xi'an 710072)2)(College of Physics and Electronic Information,I LI Normal University,Yining 835000);An Improved Contourlet Transform and its Application in Image Denosing[J];Journal of Computer-Aided Design & Computer Graphics;2009-11
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved