Ultrasonic liver tissues classification by fractal feature vector based on M-band wavelet transform
Wen-Li Lee
Yung-Chang Chen
Kai-Sheng Hsieh
Dept. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan;
This paper appears in: Medical Imaging, IEEE Transactions on
Publication Date: March 2003
Volume: 22,
Issue: 3
On page(s): 382-392
Location: Davis, CA, USA,
ISSN: 0278-0062
INSPEC Accession Number: 7646079
Digital Object Identifier: 10.1109/TMI.2003.809593
Current Version Published: 2003-05-21
Abstract
Describes the feasibility of selecting a fractal feature vector based on M-band wavelet transform to classify ultrasonic liver images - normal liver, cirrhosis, and hepatoma. The proposed feature extraction algorithm is based on the spatial-frequency decomposition and fractal geometry. Various classification algorithms based on respective texture measurements and filter banks are presented and tested. Classifications for the three sets of ultrasonic liver images reveal that the fractal feature vector based on M-band wavelet transform is trustworthy. A hierarchical classifier, which is based on the proposed feature extraction algorithm is at least 96.7% accurate in the distinction between normal and abnormal liver images and is at least 93.6% accurate in the distinction between cirrhosis and hepatoma liver images. Additionally, the criterion for feature selection is specified and employed for performance comparisons herein.
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