Demosaicing according to edge information based on frequency band partition

Shunsuke Iwamura, Masaaki Ikehara, Kenichi Ikenaga

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

    Abstract

    In this paper, we propose a new demosaicing method that interpolates RAW images in a Bayer pattern. We firstly apply a wavelet transform to a rotated G-channel of Bayer pattern. Then, according to the high frequency energy, Sobel operator and 2D FFT (Fast Fourier Transform) are performed par-allelly as edge-classifiers. Missing samples are interpolated along the estimated edge direction. In both subjective and objective evaluations, the proposed demosaicing algorithm show better results than those of conventional methods.

    Original languageEnglish
    Title of host publication2009 IEEE 13th Digital Signal Processing Workshop and 5th IEEE Signal Processing Education Workshop, DSP/SPE 2009, Proceedings
    Pages544-547
    Number of pages4
    DOIs
    Publication statusPublished - 2009 Apr 8
    Event2009 IEEE 13th Digital Signal Processing Workshop and 5th IEEE Signal Processing Education Workshop, DSP/SPE 2009 - Marco Island, FL, United States
    Duration: 2009 Jan 42009 Jan 7

    Publication series

    Name2009 IEEE 13th Digital Signal Processing Workshop and 5th IEEE Signal Processing Education Workshop, DSP/SPE 2009, Proceedings

    Other

    Other2009 IEEE 13th Digital Signal Processing Workshop and 5th IEEE Signal Processing Education Workshop, DSP/SPE 2009
    CountryUnited States
    CityMarco Island, FL
    Period09/1/409/1/7

    Keywords

    • Bayer array
    • Demosaicing
    • FFT
    • Frequency band partition
    • Sobel operator

    ASJC Scopus subject areas

    • Computer Networks and Communications
    • Signal Processing
    • Electrical and Electronic Engineering

    Fingerprint Dive into the research topics of 'Demosaicing according to edge information based on frequency band partition'. Together they form a unique fingerprint.

  • Cite this

    Iwamura, S., Ikehara, M., & Ikenaga, K. (2009). Demosaicing according to edge information based on frequency band partition. In 2009 IEEE 13th Digital Signal Processing Workshop and 5th IEEE Signal Processing Education Workshop, DSP/SPE 2009, Proceedings (pp. 544-547). [4785983] (2009 IEEE 13th Digital Signal Processing Workshop and 5th IEEE Signal Processing Education Workshop, DSP/SPE 2009, Proceedings). https://doi.org/10.1109/DSP.2009.4785983