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Design of Linear Phase Cosine Modulated Filter Banks for Subband Image Compression

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Title: Design of Linear Phase Cosine Modulated Filter Banks for Subband Image Compression
Author: Odegard, Jan E.; Gopinath, Ramesh A.; Burrus, C. Sidney
Type: Report
Keywords: filter banks
Citation: J. E. Odegard, R. A. Gopinath and C. S. Burrus, "Design of Linear Phase Cosine Modulated Filter Banks for Subband Image Compression," Rice University CML Technical Report, 1994.
Abstract: Wavelet methods give a flexible alternative to Fourier methods in non-stationary signal analysis. The concept of band-limitedness plays a fundamental role in Fourier analysis. Since wavelet theory replaces frequency with scale, a natural question is whether there exists a useful concept of scale-limitedness. Obvious definitions of scale-limitedness are too restrictive, in that there would be few or no useful scale-limited signals. This paper introduces a viable definition for scale-limited signals, and shows that the class is rich enough to include bandlimited signals, and impulse trains, among others. Moreover, for a wide choice of criteria, we show how to design the optimal wavelet for representing a given signal, and how to design robust wavelets that optimally represent certain classes of signals.
Date Published: 1994-01-15

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  • ECE Publications [1048 items]
    Publications by Rice University Electrical and Computer Engineering faculty and graduate students
  • DSP Publications [508 items]
    Publications by Rice Faculty and graduate students in digital signal processing.