Embedded Image Compression Scheme Using Rate-Distortion Optimized Block Coding of Wavelet Coefficients 


Vol. 39,  No. 11, pp. 625-636, Nov.  2014


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  Abstract

In this paper, we propose a new embedded image compression scheme which uses rate-distortion optimized block coding of wavelet coefficients. Unlike to previous works in which set-partition or block-partition is performed according to the magnitude of wavelet coefficients, the proposed scheme achieves rate-distortion optimization by sorting wavelet coefficients or blocks according to their expected rate-distortion slope. At the same time, it performs the optimized block-partition coding using the expected rate-distortion slope of blocks. The proposed scheme also uses various relationship of wavelet coefficients for the entropy coding. Experimental results demonstrate that the proposed image compression scheme provides better overall performance than the existing embedded coding schemes such as SPIHT and EBCOT, in which the PSNR gains of the proposed scheme are about 0.11~1.16dB and -0.18~0.52dB, respectively.

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  Cite this article

[IEEE Style]

C. M. Yang and K. Chung, "Embedded Image Compression Scheme Using Rate-Distortion Optimized Block Coding of Wavelet Coefficients," The Journal of Korean Institute of Communications and Information Sciences, vol. 39, no. 11, pp. 625-636, 2014. DOI: .

[ACM Style]

Chang Mo Yang and Kwangsue Chung. 2014. Embedded Image Compression Scheme Using Rate-Distortion Optimized Block Coding of Wavelet Coefficients. The Journal of Korean Institute of Communications and Information Sciences, 39, 11, (2014), 625-636. DOI: .

[KICS Style]

Chang Mo Yang and Kwangsue Chung, "Embedded Image Compression Scheme Using Rate-Distortion Optimized Block Coding of Wavelet Coefficients," The Journal of Korean Institute of Communications and Information Sciences, vol. 39, no. 11, pp. 625-636, 11. 2014.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880