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Visual object tracking algorithms based on middle level appearance have been widely studied for their effective representation to non-rigid appearance variation and partial occlusion. Sub-blocks are often adopted as local feature in mid-level based tracking algorithms. How to select representative sub-blocks to reveal the spatial structure of objects and retain the flexibility to model non-rigid deformation...
Local features have been widely used in visual object tracking for their robustness in illumination, deformation, rotation and partial occlusion. Traditional feature selection algorithms based on accumulated knowledge of previous frames usually adopt the perspective of continuity of changes, which could lead to degradation. Exploiting discrimination and uniqueness of local sub-blocks, we build an...
A signature verification system based on video is proposed in this paper.The signature information is obtained from video of camera which is different from traditional online or offline method.First,we set the camera in upper front of the white written paper,so that we can get the signatures have the most identifiability for human recognition. We locate the pen tip position using a contour-based method...
Tensor analysis has been widely utilized in image-related machine learning applications, which has preferable performance over the vector-based approaches for its capability of holding the spatial structure information in some research field. The traditional tensor representation only includes the intensity values, which is sensitive to illumination variation. For this purpose, a weighted tensor subspace...
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