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In this paper, we proposed a novel and simple gaze calibration procedure, namely Pattern Voting Scheme (PVS), for reducing the computing complex. The proposed method doesn't require multiple spatial coordinates to estimate the inner and outer parameters of the camera and without regard to the evaluation of accuracy. The iris location can be determined easy by using the voting weight. The PVS is a...
Illumination and expression variations are still a challenging problem in face recognition. In this work, we present an efficient face recognition method which can solve the above two problems with single training sample. At first, the effect of the lighting variation is effectively eliminated by the Multi-Scale Retinex algorithm. The Active Appearance Model is adopted to extract the facial block...
This paper presents a human action recognition system for recognizing various behaviors directly from videos. Firstly, we triangulate the human body to different triangle meshes. Then, we use a depth-first search (dfs) scheme to find a spanning tree from the set of meshes. All leafs of the spanning tree are adopted as the extremities. Different from traditional approaches to find the extremities on...
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