New techniques for subband/wavelet transform coefficient coding applied to still image compression

Emmanuel Reusens; Touradj Ebrahimi

doi:10.1117/12.139090

12 January 1993 New techniques for subband/wavelet transform coefficient coding applied to still image compression

Emmanuel Reusens, Touradj Ebrahimi

Proceedings Volume 1771, Applications of Digital Image Processing XV; (1993) https://doi.org/10.1117/12.139090
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

New techniques for redundancy removal of quantized coefficients of a wavelet transform are discussed. Several strategies are developed to improve the redundancy reduction stage in subband/wavelet based image compression. The influence of the scanning path in coding the coefficients of the subbands after transformation are pointed out and solutions are proposed for exploiting the correlation between the coefficients in a more efficient way. New methods are also proposed to encode the address of non zero coefficients using blocks in both lossy and lossless approach. Simulations show a better performance of the proposed techniques when compared to classical methods, while maintaining an efficient implementation complexity.

Citation Download Citation

Emmanuel Reusens and Touradj Ebrahimi "New techniques for subband/wavelet transform coefficient coding applied to still image compression", Proc. SPIE 1771, Applications of Digital Image Processing XV, (12 January 1993); https://doi.org/10.1117/12.139090

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