Chengzhuan Yang

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This paper has analyzed the existent measures of uncertainty based on covering rough sets. It is revealed that they all bear some irrationality under specified situations. Here a concept of relative knowledge granularities based on covering rough sets is defined. And we propose an uncertainty measure of covering rough sets based on knowledge granularities(More)
Chamfer matching is one of the elegant and powerful tools for shape-based detection in cluttered images. However, the chamfer matching methods, including oriented chamfer matching (OCM) and directional chamfer matching (DCM), tend to produce bad detections due to deformation of object shapes and cluttering in the scene. To improve detection accuracy of(More)
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