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Shadows have long been a problem to computer vision algorithms. Removing shadow can significantly improve the performance of several vision task such as object detection and image segmentation. Various methods of shadow removal in images had been developed. In this paper, we discussed the characteristic of shadowed region with single texture statistically, based on an illumination model, and then...
In order to reduce huge computational burden and to improve poor matching performance for existing color SIFT descriptors, we propose a novel color SIFT descriptor via color quantization (CQ). Firstly we quantize the three components of the HSV space and define a one-dimension color vector with a rigorous constraint. Then we introduce the vector to the standard SIFT descriptor and propose the novel...
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