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Accurate stripe boundary detection is crucial for stripe coded structured light based 3-D reconstruction. In this paper, we propose an improved stripe boundary location scheme based on steerable filters. In the proposed scheme, adaptive median filter is first used to smooth the input image by suppressing impulsive and non-impulsive noise. Because of their better orientation selectivity than classical...
Using the framework of quotient image model, this paper presented a median filtering-based method (MFQI) for the illumination normalization of facial images. The proposed method first uses adaptive median filtering to derive an estimation of the received light, and then uses the quotient image model for local illumination normalization. Compared with the other quotient image methods, MFQI does not...
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