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Discriminative Color Descriptors
Université de Saint- Étienne, France.
Computer Vision Center, Barcelona, Spain.
Linköping University, Department of Electrical Engineering, Computer Vision. Linköping University, The Institute of Technology.
Université de Saint- Étienne, France.
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2013 (English)In: Computer Vision and Pattern Recognition (CVPR), 2013, IEEE Computer Society, 2013, 2866-2873 p.Conference paper, Published paper (Refereed)
Abstract [en]

Color description is a challenging task because of large variations in RGB values which occur due to scene accidental events, such as shadows, shading, specularities, illuminant color changes, and changes in viewing geometry. Traditionally, this challenge has been addressed by capturing the variations in physics-based models, and deriving invariants for the undesired variations. The drawback of this approach is that sets of distinguishable colors in the original color space are mapped to the same value in the photometric invariant space. This results in a drop of discriminative power of the color description. In this paper we take an information theoretic approach to color description. We cluster color values together based on their discriminative power in a classification problem. The clustering has the explicit objective to minimize the drop of mutual information of the final representation. We show that such a color description automatically learns a certain degree of photometric invariance. We also show that a universal color representation, which is based on other data sets than the one at hand, can obtain competing performance. Experiments show that the proposed descriptor outperforms existing photometric invariants. Furthermore, we show that combined with shape description these color descriptors obtain excellent results on four challenging datasets, namely, PASCAL VOC 2007, Flowers-102, Stanford dogs-120 and Birds-200.

Place, publisher, year, edition, pages
IEEE Computer Society, 2013. 2866-2873 p.
Series
IEEE Conference on Computer Vision and Pattern Recognition. Proceedings, ISSN 1063-6919
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-105462DOI: 10.1109/CVPR.2013.369OAI: oai:DiVA.org:liu-105462DiVA: diva2:707470
Conference
26th IEEE Conference on Computer Vision and Pattern Recognition (CVPR 2013), 23-28 June 2013, Portland, OR, USA
Projects
CUAS
Available from: 2014-03-24 Created: 2014-03-24 Last updated: 2014-03-31Bibliographically approved

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Khan, Fahad Shahbaz

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf