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Invertible authentication techniques have been used in some special applications (such as medical or military applications), where original data can be recovered after being authenticated. In this paper, we proposed a new scheme combine features (relation of coefficients) in DCT domain with content features (edges or textures) of JPEG image into multi-feature, which is useful to authenticate images...
Video mosaic is to make a wide or a panoramic image from video sequence by assembling the individual overlapping video frames. In this paper a technique is presented for video mosaic, which employs block matching based on phase correlation and robust M-estimation method. Initial point correspondences between each pair of consecutive frames are computed by block matching method based on phase correlation,...
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