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http://dx.doi.org/10.5207/JIEIE.2005.19.6.109

The Modeling of the Optimal Data Format for JPEG2000 CODEC on the Fixed Compression Ratio  

Seo, Choon-Weon (김포대학 컴퓨터네트워크과)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.19, no.6, 2005 , pp. 109-116 More about this Journal
Abstract
Recently, images/videos have been preferred as the communication media because of their information-implication and easy recognizability. But the amount of their data is so large that it has been the major research area to compress their data. This paper is related to optimization in th image data format, which can make a great effect in performance of data compression and is based on the wavelet transform and JPEG2000. This paper established a criterion to decide the data format to be used in wavelet transform, which is on the bases of the data errors in frequency transform and quantization. This criterion has been used to extract the optimal data format experimentally. The result were(1, 9) of 10-bit fixed-point format for filter coefficients and (9, 7) of 16-bit fixed-point data dormat for wavelet coefficients and their optimality was confirmed.
Keywords
Compression; JPEG2000; Data format;
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