Area-efficient 2-D digital filter architectures possessing diagonal and four-fold rotational symmetries

Pei Yu Chen, Lan-Da Van, Hari C. Reddy, I. Hung Khoo

    Research output: Contribution to conferencePaperpeer-review

    10 Scopus citations

    Abstract

    In this paper, two area-efficient two-dimensional (2-D) IIR filter architectures for 2-D transfer function with diagonal and four-fold rotational symmetries are proposed for image processing. For this purpose, two different intermediate transfer functions are applied and the corresponding two new filter architectures are obtained. Under satisfactory average error performance, we determine that the new filter structure requires less multiplier wordlength than the previously published Type-1 filter structure. With the features of less numerator multiplier wordlength and shorter critical path, the proposed diagonal and four-fold rotational symmetry filter architectures can result in 10.17% and 3.35% area reduction with respect to the published Type-1 IIR filter structures with diagonal and four-fold rotational symmetries in terms of synthesis results.

    Original languageEnglish
    DOIs
    StatePublished - 1 Jan 2013
    Event9th International Conference on Information, Communications and Signal Processing, ICICS 2013 - Tainan, Taiwan
    Duration: 10 Dec 201313 Dec 2013

    Conference

    Conference9th International Conference on Information, Communications and Signal Processing, ICICS 2013
    Country/TerritoryTaiwan
    CityTainan
    Period10/12/1313/12/13

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