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International Journal of Image, Graphics and Signal Processing(IJIGSP)

ISSN: 2074-9074 (Print), ISSN: 2074-9082 (Online)

Published By: MECS Press

IJIGSP Vol.4, No.9, Sep. 2012

Segmentation of Pre-processed Medical Images: An Approach Based on Range Filter

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Author(s)

Amir Rajaei,Elham Dallalzadeh,Lalitha Rangarajan

Index Terms

Pre-processing, Special markings, Sobel edge detection technique, Medical image texture segmentation, Image enhancement, Texture filter, Range filter

Abstract

Medical image segmentation is a frequent processing step. Medical images are suffering from unrelated article and strong speckle noise. In this paper, we propose an approach to remove special markings such as arrow symbols and printed text along with medical image segmentation using range filter. The special markings are extracted using Sobel edge detection technique and then the intensity values of the detected markings are substituted by the intensity values of their corresponding neighborhood pixels. Next, three different image enhancement techniques are utilized to remove strong speckle noise as well enhance the weak boundaries of medical images. Finally range filter is applied to segment the texture content of different modalities of medical image. Experiment is conducted on ImageCLEF2010 database. Results show the efficacy of our proposed approach which lead to have precise content based medical image classification and retrieval systems.

Cite This Paper

Amir Rajaei,Elham Dallalzadeh,Lalitha Rangarajan,"Segmentation of Pre-processed Medical Images: An Approach Based on Range Filter", IJIGSP, vol.4, no.9, pp.8-16, 2012.

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