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GVIP

CAD System for Preprocessing and Enhancement Of Digital Mammograms
 K.Thangavel1, M.Karnan2
1: Department of computer science, Periyar University, SalemTamil nadu,, india
2: Department of computer science, Gandhigram Rural Institute-Deemed University, Gandhigram-624302, Tamil Nadu, India.

ABSTRACT

This paper proposes a gradient-based image enhancement method for mammographic images, which is based on the first derivative and the local statistics. The proposed enhancement method consists of four processing steps. In the first step, the image is identified whether it is a left breast image or right breast image, then the film artifacts such as labels and x-ray marks are removed from the mammogram. Second, the high frequency components are removed using median filtering. In the third step, the mammogram images are normalized to avoid the difference in brightness and contrast between the mammograms caused by the recording procedure. And in the fourth step the pectoral muscle region is removed from the breast region to increase the reliability of the segmentation and classification of microcalcifications. The performance of the proposed method was also evaluated by means of signal-to noise-ratio (SNR) using the mammographic images from Mammographic Image Analysis Society (MIAS) database.

BIOGRAPHY:

THANGAVEL KUTTIANNAN, received the Master of Science from Department of Mathematics, Bharathidasan University in 1986, and Master of Computer Applications Degree from Madurai Kamaraj University, India in 2001. He got his Ph. D. Degree from Mathematics department, Gandhigram Rural Institute-Deemed University in 1999. Currently he is working as Professor in Computer science Department, Gandhigram Rural Institute-Deemed University, and his experience started from 1988; His area of interests includes medical image processing, artificial intelligence, neural network, and fuzzy logic.

 

KARNAN MARCUS, received the Master of Computer Science and Engineering Degree from Computer Science and Engineering Department, from Government College of Engineering, Manonmaniam Sundaranar University, Tamil Nadu, India, in 2000. Currently he is working as Professor, Department of Computer Science & Engineering Department, Hindusthan College of Engineering & Technology, Tamil Nadu, India. And doing part-time research in the Department of computer Science and Applications, Gandhigram Rural Institute-Deemed University, Tamil Nadu,  India. His area of interests includes medical image processing, artificial intelligence, neural network, genetic algorithm, pattern recognition and fuzzy logic.

BibTex:

@ARTICLE{P1150546007,

AUTHOR = {K.Thangavel and M.Karnan},

TITLE = {CAD System for Preprocessing and Enhancement Of Digital Mammograms},

JOURNAL = {ICGST International Journal on Graphics, Vision and Image Processing},

YEAR = {2005},

MONTH={DECEMBER},

VOLUME={05},

ISSUE = {9},

PAGES={69--74}

}

(Full Paper, 498 KB)