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To improve comprehensive performance of denoising range images, an impulsive noise (IN) denoising method with variable windows is proposed in this paper. Founded on several discriminant criteria, the principles of dropout IN detection and outlier IN detection are provided. Subsequently, a nearest non-IN neighbors searching process and an Index Distance Weighted Mean filter is combined for IN denoising...
Batch verification is a method devised to verify multiple signatures as a whole simultaneously. In literatures, we can see that some conventional batch verification schemes cannot effectively and efficiently identity bad signatures. Small Exponent test, a popular batch verification method, has its own problems, e.g., after a test, bad signatures still exist with some escape probabilities. In this...
Sampling is the most powerful tool for researchers to study important characteristics of the continuously growing Web. On Web page sampling problem, we collect a number of pages which are representative to the Web population. However, we believe Web sampling greatly differs from generic sampling problem. First of all, the randomness principle can not be applied to Web sampling mechanically; Secondly,...
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