منابع مشابه
Illuminant estimation as cue combination.
This work briefly describes a model for illuminant estimation based on combination of candidate illuminant cues. Many of the research issues concerning cue combination in depth and shape perception translate well to the study of surface color perception. I describe and illustrate a particular experimental approach (perturbation analysis) employed in the study of depth and shape that is useful i...
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This paper discusses the implementation of the light source detection technique proposed by Zhang and Yang. The approach attempts to recover multiple light sources from an image of a sphere by locating cutoff curves. Three other approaches have extended this technique and generalize it to allow the analysis of arbitrary known geometries. The implementation is performed in MATLAB and is tested u...
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Colour based object recognition is a difficult problem because of the effect of scene illuminant and geometry on the captured image. In this paper the ability of an algorithm proposed by Finlayson and Drew [1] to separate similar colours is assessed. A new variant of this algorithm is then proposed that results in a slight improvement in performance. A significant performance improvement is ach...
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Only if we can estimate the colour of the prevailing light and discount it from the image can image colour be used as a stable cue for indexing, recognition and tracking (amongst other tasks). Almost all illumination estimation research uses the angle between the RGB of the actual measured illuminant colour and that estimated one as the recovery error. However here we identify a problem with th...
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ژورنال
عنوان ژورنال: Journal of the Franklin Institute
سال: 1912
ISSN: 0016-0032
DOI: 10.1016/s0016-0032(12)91197-7