Image interpolation using cosine-sine modulated filter bank

Shunsuke Iwamura, Seisuke Kyochi, Masaaki Ikehara, Naoto Kaneko

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    This paper proposes a new image interpolation technique by using direction-aware transform. In literature, it is known that Cosine-Sine modulated filter banks (CSMFB) can be regarded as alternative dual-tree complex wavelet transform, therefore, CSMFB has rich directional selectivity. Our interpolation procedure consists of two stages. First, we generate low frequency image and six directional images from the input image by using 4-channel CSMFB. Then each image is interpolated along with each direction. The simulation results show that our method can produce high visual quality images and improves some artifacts. Moreover, our method is quite feasible from the view point of hardware implementation since there is no branching procedure.

    Original languageEnglish
    Title of host publicationProceedings - 2010 1st IEEE Latin American Symposium on Circuits and Systems, LASCAS 2010
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages13-16
    Number of pages4
    ISBN (Print)9781509020768
    DOIs
    Publication statusPublished - 2016 Feb 17
    Event1st IEEE Latin American Symposium on Circuits and Systems, LASCAS 2010 - Foz do Iguacu, Brazil
    Duration: 2010 Feb 242010 Feb 26

    Other

    Other1st IEEE Latin American Symposium on Circuits and Systems, LASCAS 2010
    CountryBrazil
    CityFoz do Iguacu
    Period10/2/2410/2/26

    Keywords

    • cosine-sine modulated filter banks
    • Direction-aware transform
    • image interpolation

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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  • Cite this

    Iwamura, S., Kyochi, S., Ikehara, M., & Kaneko, N. (2016). Image interpolation using cosine-sine modulated filter bank. In Proceedings - 2010 1st IEEE Latin American Symposium on Circuits and Systems, LASCAS 2010 (pp. 13-16). [7410128] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/LASCAS.2010.7410128