A wavelet-based two-stage near-lossless coder with L&#8734;- error scalability

Sehoon Yea; William A. Pearlman

doi:10.1117/12.644000

19 January 2006 A wavelet-based two-stage near-lossless coder with L^∞- error scalability

Sehoon Yea, William A. Pearlman

Proceedings Volume 6077, Visual Communications and Image Processing 2006; 607714 (2006) https://doi.org/10.1117/12.644000
Event: Electronic Imaging 2006, 2006, San Jose, California, United States

Abstract

We present a wavelet-based near-lossless coder with L∞-error scalability. The method presented consists of a wavelet-based lossy layer encoder followed by multiple stages of residual refinements for L∞-error scalability. We introduce a successive refinement scheme in L∞-error sense for residual layers reminiscent of popular set-partitioning algorithms for embedded coding. The initial near-lossless error bound is attained by our previously proposed two-stage scheme which determines the bit-rate for the lossy layer 'on-the-fly' without any iteration. The resulting residual which is defined by the difference between the original and the initial near-lossless reconstruction is then further refined in L∞-error sense up to lossless reconstruction. This scheme provides a combination of L²-error embedded lossy reconstruction up to an automatically determined high-fidelity plus optional layers of scalable L∞-error. This may turn out to be particularly useful for scalable archival applications where the fidelity of reconstructions on the high-bit end needs to be strictly controlled.

Citation Download Citation

Sehoon Yea and William A. Pearlman "A wavelet-based two-stage near-lossless coder with L^∞- error scalability", Proc. SPIE 6077, Visual Communications and Image Processing 2006, 607714 (19 January 2006); https://doi.org/10.1117/12.644000

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