Distinctive Image Features from Scale-Invariant Keypoints
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...SIFT [15] descriptors are used in this experiment....
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"Distinctive Image Features from Sca..." refers background in this paper
...It has been shown by Koenderink (1984) and Lindeberg (1994) that under a variety of reasonable assumptions the only possible scale-space kernel is the Gaussian function....
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...In addition, the difference-of-Gaussian function provides a close approximation to the scale-normalized Laplacian of Gaussian, σ 2∇2G, as studied by Lindeberg (1994). Lindeberg showed that the normalization of the Laplacian with the factor σ 2 is required for true scale invariance....
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...In addition, the difference-of-Gaussian function provides a close approximation to the scale-normalized Laplacian of Gaussian, σ 2∇2G, as studied by Lindeberg (1994). Lindeberg showed that the normalization of the Laplacian with the factor σ 2 is required for true scale invariance. In detailed experimental comparisons, Mikolajczyk (2002) found that the maxima and minima of σ 2∇2G produce the most stable image features compared to a range of other possible image functions, such as the gradient, Hessian, or Harris corner function....
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"Distinctive Image Features from Sca..." refers background in this paper
...The research of Weber et al. (2000) and Fergus et al. (2003) has shown the potential of this approach by learning small sets of local features that are suited to recognizing generic classes of objects....
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"Distinctive Image Features from Sca..." refers background in this paper
...Recently, there has been an impressive body of work on extending local features to be invariant to full affine transformations (Baumberg, 2000; Tuytelaars and Van Gool, 2000; Mikolajczyk and Schmid, 2002; Schaffalitzky and Zisserman, 2002; Brown and Lowe, 2002)....
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1,574 citations
"Distinctive Image Features from Sca..." refers background in this paper
...Zhang et al. (1995) showed that it was possible to match Harris corners over a large image range by using a correlation window around each corner to select likely matches....
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