Jiyuan Dong

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This paper examines the feature extraction method based on force field transformation and develops a new two-stage approach for multi-pose ear feature extraction and recognition, i.e., force field transformation plus null space based kernel fisher discriminant analysis (NKFDA). Force field transformation assumes the pixel in the ear image as the particle(More)
This paper proposes a novel multiscale 3D keypoint detection method via the double Gaussian weighted dissimilarity measure. At each scale, the shape index value and the double Gaussian weighted dissimilarity measure value of each 3D point are firstly computed. Then the candidate keypoints with local maximum dissimilarity measure values are determined.(More)
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