Automatic Classification of Normal and Cancer Lung CT Images Using Multiscale AM-FM Features

Computer-aided diagnostic (CAD) systems provide fast and reliable diagnosis for medical images. In this paper, CAD system is proposed to analyze and automatically segment the lungs and classify each lung into normal or cancer. Using 70 different patients’ lung CT dataset, Wiener filtering on the ori...

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Main Authors: Eman Magdy, Nourhan Zayed, Mahmoud Fakhr
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:International Journal of Biomedical Imaging
Online Access:http://dx.doi.org/10.1155/2015/230830
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author Eman Magdy
Nourhan Zayed
Mahmoud Fakhr
author_facet Eman Magdy
Nourhan Zayed
Mahmoud Fakhr
author_sort Eman Magdy
collection DOAJ
description Computer-aided diagnostic (CAD) systems provide fast and reliable diagnosis for medical images. In this paper, CAD system is proposed to analyze and automatically segment the lungs and classify each lung into normal or cancer. Using 70 different patients’ lung CT dataset, Wiener filtering on the original CT images is applied firstly as a preprocessing step. Secondly, we combine histogram analysis with thresholding and morphological operations to segment the lung regions and extract each lung separately. Amplitude-Modulation Frequency-Modulation (AM-FM) method thirdly, has been used to extract features for ROIs. Then, the significant AM-FM features have been selected using Partial Least Squares Regression (PLSR) for classification step. Finally, K-nearest neighbour (KNN), support vector machine (SVM), naïve Bayes, and linear classifiers have been used with the selected AM-FM features. The performance of each classifier in terms of accuracy, sensitivity, and specificity is evaluated. The results indicate that our proposed CAD system succeeded to differentiate between normal and cancer lungs and achieved 95% accuracy in case of the linear classifier.
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publishDate 2015-01-01
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spelling doaj-art-a56cbb5718a2489e8ba519adb537bb432025-02-03T07:24:41ZengWileyInternational Journal of Biomedical Imaging1687-41881687-41962015-01-01201510.1155/2015/230830230830Automatic Classification of Normal and Cancer Lung CT Images Using Multiscale AM-FM FeaturesEman Magdy0Nourhan Zayed1Mahmoud Fakhr2Computer and Systems Department, Electronic Research Institute, Giza 12611, EgyptComputer and Systems Department, Electronic Research Institute, Giza 12611, EgyptComputer and Systems Department, Electronic Research Institute, Giza 12611, EgyptComputer-aided diagnostic (CAD) systems provide fast and reliable diagnosis for medical images. In this paper, CAD system is proposed to analyze and automatically segment the lungs and classify each lung into normal or cancer. Using 70 different patients’ lung CT dataset, Wiener filtering on the original CT images is applied firstly as a preprocessing step. Secondly, we combine histogram analysis with thresholding and morphological operations to segment the lung regions and extract each lung separately. Amplitude-Modulation Frequency-Modulation (AM-FM) method thirdly, has been used to extract features for ROIs. Then, the significant AM-FM features have been selected using Partial Least Squares Regression (PLSR) for classification step. Finally, K-nearest neighbour (KNN), support vector machine (SVM), naïve Bayes, and linear classifiers have been used with the selected AM-FM features. The performance of each classifier in terms of accuracy, sensitivity, and specificity is evaluated. The results indicate that our proposed CAD system succeeded to differentiate between normal and cancer lungs and achieved 95% accuracy in case of the linear classifier.http://dx.doi.org/10.1155/2015/230830
spellingShingle Eman Magdy
Nourhan Zayed
Mahmoud Fakhr
Automatic Classification of Normal and Cancer Lung CT Images Using Multiscale AM-FM Features
International Journal of Biomedical Imaging
title Automatic Classification of Normal and Cancer Lung CT Images Using Multiscale AM-FM Features
title_full Automatic Classification of Normal and Cancer Lung CT Images Using Multiscale AM-FM Features
title_fullStr Automatic Classification of Normal and Cancer Lung CT Images Using Multiscale AM-FM Features
title_full_unstemmed Automatic Classification of Normal and Cancer Lung CT Images Using Multiscale AM-FM Features
title_short Automatic Classification of Normal and Cancer Lung CT Images Using Multiscale AM-FM Features
title_sort automatic classification of normal and cancer lung ct images using multiscale am fm features
url http://dx.doi.org/10.1155/2015/230830
work_keys_str_mv AT emanmagdy automaticclassificationofnormalandcancerlungctimagesusingmultiscaleamfmfeatures
AT nourhanzayed automaticclassificationofnormalandcancerlungctimagesusingmultiscaleamfmfeatures
AT mahmoudfakhr automaticclassificationofnormalandcancerlungctimagesusingmultiscaleamfmfeatures