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http://dx.doi.org/10.9723/jksiis.2011.16.3.023

An Image Coding Method by Using the Bit-Level Information of Wavelet Coefficients  

Park, Sung-Wook (유한대학교 정보통신과)
Park, Jong-Wook (인천대학교 전자공학과)
Publication Information
Journal of Korea Society of Industrial Information Systems / v.16, no.3, 2011 , pp. 23-33 More about this Journal
Abstract
In this paper, the wavelet image coder, that can encode the bit-level information of wavelet coefficients, is proposed. The proposed coder is used the modified EZW algorithm and significant coefficient array that has bit level information of the wavelet coefficients to reduce the memory requirement in coding process. The significant coefficient array is two dimensional data structure that has bit level information of the wavelet coefficients. The proposed algorithm performs the coding of the significance coefficients and coding of bit level information of wavelet coefficients at a time by using the significant coefficient array. Experimental results show a better or similar performance of the proposed method when compared with conventional embedded wavelet coding algorithm. Especially, the proposed algorithm performs stably without image distortion at various bit rates with minimum memory usage by using the significant coefficient array.
Keywords
Wavelet Coding; Zerotree Coding; Wavelet Coefficients;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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