Statistically optimized PR-QMF design

Hakan Caglar; Yipeng Liu; Ali Naci Akansu

doi:10.1117/12.50231

1 November 1991 Statistically optimized PR-QMF design

Hakan Caglar, Yipeng Liu, Ali Naci Akansu

Proceedings Volume 1605, Visual Communications and Image Processing '91: Visual Communication; (1991) https://doi.org/10.1117/12.50231
Event: Visual Communications, '91, 1991, Boston, MA, United States

Abstract

A multivariable optimization problem is set to design 2-band PR-QMFs in this paper. The energy compaction, aliasing energy, step response, zero-mean high-pass filter, uncorrelated subband signals, constrained nonlinearity of the phase-response, and the given input statistics are simultaneously considered in the proposed optimal filter design technique. A set of optimal PR-QMF solutions and their optimization criteria along with their energy compaction performance are given for comparison. This approach of PR-QMF design leads to an input driven adaptive subband filter bank structure. It is expected that these optimal filters outperform the well-known fixed PR-QMFs in the literature for image and video coding applications.

Citation Download Citation

Hakan Caglar, Yipeng Liu, and Ali Naci Akansu "Statistically optimized PR-QMF design", Proc. SPIE 1605, Visual Communications and Image Processing '91: Visual Communication, (1 November 1991); https://doi.org/10.1117/12.50231

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