Dictionary learning based color demosaicing for plenoptic cameras

Xiang Huang*, Oliver Strides Cossairt

*Corresponding author for this work

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

9 Scopus citations

Abstract

Recently plenoptic cameras have gained much attention, as they capture the 4D light field of a scene which is useful for numerous computer vision and graphics applications. Similar to traditional digital cameras, plenoptic cameras use a color filter array placed onto the image sensor so that each pixel only samples one of three primary color values. A color demosaicing algorithm is then used to generate a full-color plenoptic image, which often introduces color aliasing artifacts. In this paper, we propose a dictionary learning based demosaicing algorithm that recovers a full-color light field from a captured plenoptic image using sparse optimization. Traditional methods consider only spatial correlations between neighboring pixels on a captured plenoptic image. Our method takes advantage of both spatial and angular correlations inherent in naturally occurring light fields. We demonstrate that our method outperforms traditional color demosaicing methods by performing experiments on a wide variety of scenes.

Original languageEnglish (US)
Title of host publicationProceedings - 2014 IEEE Conference on Computer Vision and Pattern Recognition Workshops, CVPRW 2014
PublisherIEEE Computer Society
Pages455-460
Number of pages6
ISBN (Electronic)9781479943098, 9781479943098
DOIs
StatePublished - Sep 24 2014
Event2014 IEEE Conference on Computer Vision and Pattern Recognition Workshops, CVPRW 2014 - Columbus, United States
Duration: Jun 23 2014Jun 28 2014

Publication series

NameIEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops
ISSN (Print)2160-7508
ISSN (Electronic)2160-7516

Other

Other2014 IEEE Conference on Computer Vision and Pattern Recognition Workshops, CVPRW 2014
CountryUnited States
CityColumbus
Period6/23/146/28/14

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering

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  • Cite this

    Huang, X., & Cossairt, O. S. (2014). Dictionary learning based color demosaicing for plenoptic cameras. In Proceedings - 2014 IEEE Conference on Computer Vision and Pattern Recognition Workshops, CVPRW 2014 (pp. 455-460). [6910021] (IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops). IEEE Computer Society. https://doi.org/10.1109/CVPRW.2014.73