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http://dx.doi.org/10.3745/KIPSTB.2007.14-B.5.321

A Fast and Dynamic Region-of-Interest Coding Method using the Adaptive Code-Block Discrimination Algorithm in JPEG2000 Images  

Kang, Ki-Jun (경상대학교 컴퓨터과학과)
Seo, Yeong-Geon (경상대학교 컴퓨터교육과)
Park, Jae-Heung (경상대학교 컴퓨터과학과)
Yoo, Chang-Yeul (경남도립 남해전문대학 컴퓨터정보과)
Park, Soon-Hwa (경상대학교 컴퓨터과학과)
Lee, Jum-Suk (경상대학교 컴퓨터과학과)
Lee, Bu-Kwon (경상대학교 컴퓨터과학과)
Publication Information
The KIPS Transactions:PartB / v.14B, no.5, 2007 , pp. 321-328 More about this Journal
Abstract
In this paper, we propose a fast and dynamic Region-of-Interest coding method using the adaptive code-block discrimination algorithm in JPEG2000 images which complements the implicit ROI coding method and the modified implicit ROI coding method. For reducing the time of discriminating the code block, the proposed method estimates the characteristics of the shape of ROI and makes the shape of boundaries, and classifies the patterns of each code block. The method improves the preferred processing and loss of wavelet coefficients of background within the ROI code blocks by adaptively classifying the code blocks with the percentage of content of the wavelet coefficients using the thresholds of ROI and background. Also, the priority control of wavelet coefficients of background within ROI code block supports the rapid ROI coding by processing in batch based on patterns unlike the existing methods that process with unit of wavelet coefficients. To show the usefulness of this method, we compared this to the existing methods. There is no difference in performance, but we confirmed very speedy in processing time.
Keywords
JPEG2000; ROI; EBCOT;
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