Linear phase paraunitary filter banks with unequal-length filters

M. Ikehara, T. D. Tran, T. Q. Nguyen

    Research output: Contribution to conferencePaper

    4 Citations (Scopus)

    Abstract

    This paper presents the theory, design, and efficient implementation of a new class of linear phase paraunitary filter banks (LPPUFB) which find application in transform-based image coding. These new LPPUFB have filters of different lengths: longer filters are kept for low-frequency components to prevent blocking, while shorter filters are reserved for high-frequency components to minimize ringing. The proposed lattice factorization structurally enforces the unequal-length property along with LP and PU properties, and it is robust under the quantization of lattice coefficients. Design and image coding examples are also presented to confirm the validity of the theory.

    Original languageEnglish
    Pages223-226
    Number of pages4
    Publication statusPublished - 1997 Dec 1
    EventProceedings of the 1997 International Conference on Image Processing. Part 2 (of 3) - Santa Barbara, CA, USA
    Duration: 1997 Oct 261997 Oct 29

    Other

    OtherProceedings of the 1997 International Conference on Image Processing. Part 2 (of 3)
    CitySanta Barbara, CA, USA
    Period97/10/2697/10/29

    ASJC Scopus subject areas

    • Hardware and Architecture
    • Computer Vision and Pattern Recognition
    • Electrical and Electronic Engineering

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  • Cite this

    Ikehara, M., Tran, T. D., & Nguyen, T. Q. (1997). Linear phase paraunitary filter banks with unequal-length filters. 223-226. Paper presented at Proceedings of the 1997 International Conference on Image Processing. Part 2 (of 3), Santa Barbara, CA, USA, .