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
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

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

Fingerprint

Fast Fourier transforms
Wavelet transforms
Frequency bands
Classifiers

Keywords

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

ASJC Scopus subject areas

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

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] https://doi.org/10.1109/DSP.2009.4785983

Demosaicing according to edge information based on frequency band partition. / Iwamura, Shunsuke; Ikehara, Masaaki; Ikenaga, Kenichi.

2009 IEEE 13th Digital Signal Processing Workshop and 5th IEEE Signal Processing Education Workshop, DSP/SPE 2009, Proceedings. 2009. p. 544-547 4785983.

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

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., 4785983, pp. 544-547, 2009 IEEE 13th Digital Signal Processing Workshop and 5th IEEE Signal Processing Education Workshop, DSP/SPE 2009, Marco Island, FL, United States, 09/1/4. https://doi.org/10.1109/DSP.2009.4785983
Iwamura S, Ikehara M, Ikenaga K. 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. 2009. p. 544-547. 4785983 https://doi.org/10.1109/DSP.2009.4785983
Iwamura, Shunsuke ; Ikehara, Masaaki ; Ikenaga, Kenichi. / Demosaicing according to edge information based on frequency band partition. 2009 IEEE 13th Digital Signal Processing Workshop and 5th IEEE Signal Processing Education Workshop, DSP/SPE 2009, Proceedings. 2009. pp. 544-547
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