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Open Access item A color constancy algorithm for the robust description of images collected from a mobile robot

Authors:Vergés Llahí, Jaume
Sanfeliu Cortés, Alberto
Keywords:Color histograms, Color constancy, Mobile robots, Pattern recognition: Computer vision, Computer vision
Issue Date:2004
Citation:9th Iberoamerican Congress on Pattern Recognition: pp. 232-240 (2004)
Abstract:In mobile robotics, it is necessary to have a robust and efficient way of describing the visual stream provided by a vision system to be used afterwards in tasks such as object recognition. Color histograms are a useful tool to capture and represent color properties of sets of images taken from a certain position. Since those images were obtained at different time and light conditions, their appearance have greatly changed, reducing the performance of the color descriptor. In this work, we develop a color constancy algorithm that copes with the color variation among sets of images taken from nearly the same place. We show that the performance of the color histogram descriptor rises after color constancy, becoming a more robust and useful color descriptor. In the results section, we support that claim with several sets of images of scenes belonging to different positions.
Description:Iberoamerican Congress on Pattern Recognition (CIARP), 2004, Puebla (Mexico)
Appears in Collections:(IRII) Comunicaciones congresos

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