Denoising intra-coded moving pictures using motion estimation and pixel shift

Jiro Katto, Junya Suzuki, Shusei Itagaki, Shinichi Sakaida, Kazuhisa Iguchi

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

    1 Citation (Scopus)

    Abstract

    This paper presents a denoising method of intra-coded pictures using motion estimation and pixel shift. Firstly, we show that pixel-aligned mixture of distorted images which are spatially shifted and differently encoded brings reduction of quantization errors. We show that this effect can be formulated as a special case of Wiener-Hopf equation and independence of quantization errors affects the performance. We then consider its application to denoising of intra-coded pictures by using motion estimation and pixel shift. Experiments using actual image sequences verify that motion estimation is effective in moving regions, pixel shift is effective in static regions and favorable PSNR gains are achieved.

    Original languageEnglish
    Title of host publicationICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
    Pages1393-1396
    Number of pages4
    DOIs
    Publication statusPublished - 2008
    Event2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP - Las Vegas, NV
    Duration: 2008 Mar 312008 Apr 4

    Other

    Other2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
    CityLas Vegas, NV
    Period08/3/3108/4/4

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    Keywords

    • Denoising
    • Motion estimation
    • Pixel shift
    • Wiener-hopf equation

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Signal Processing
    • Acoustics and Ultrasonics

    Cite this

    Katto, J., Suzuki, J., Itagaki, S., Sakaida, S., & Iguchi, K. (2008). Denoising intra-coded moving pictures using motion estimation and pixel shift. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (pp. 1393-1396). [4517879] https://doi.org/10.1109/ICASSP.2008.4517879