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Diagnostic Medical Image Compression Method using Visually Lossless Threshold on JPEG2000  

Bong, Jeong-Sik (동국대학교 공과대학 IT 학부 정보통신공학전공)
Yang, Gi-Joo (동국대학교 공과대학 IT 학부 정보통신공학전공)
Jeon, Joon-Hyeon (동국대학교 공과대학 IT 학부 정보통신공학전공)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.7C, 2009 , pp. 671-680 More about this Journal
Abstract
The diagnostic medical images(CT, MRI) in PACS require large storage and long transmission time. A simple and cheap way of overcoming these limitations is to increase the compression ratio. However, this requires a clinical validation for accurate diagnostic applications. The aim of this paper is to improve the compression efficiency of lossless JPEG2000 for diagnostic CT images by performing a visual-Iossless threshold filtering in high frequency subband. A proposed method, based on 5/3 reversible DWT, provides different subband-threshold values according to the compression ratio and gives the high subjective quality to reconstructed diagnostic CT images.
Keywords
Visually Lossless Threshold; JPEG2000; HVS(VDP); DWT;
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Times Cited By KSCI : 4  (Citation Analysis)
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