Object recognition from local scale-invariant features
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230 citations
230 citations
229 citations
Cites methods from "Object recognition from local scale..."
...To capture the visual appearance of a view, we extract SIFT [17] on a dense grid of 8×8 cells....
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...We perform PCA on each cell and take the first 300 components, giving a 1500-dimensional EMK SIFT feature vector....
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...Then we divide the image into a 2 × 2 grid and compute EMK features separately in each cell from only the SIFT features inside the cell....
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...First we compute a 1000-dimensional EMK feature using SIFT descriptors from the entire image....
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229 citations
Cites methods from "Object recognition from local scale..."
...627 SIFT is an algorithm employed in computer imaging used to detect and describe 628 local features in images (Lowe 1999)....
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228 citations
References
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"Object recognition from local scale..." refers background or methods in this paper
...This allows for the use of more distinctive image descriptors than the rotation-invariant ones used by Schmid and Mohr, and the descriptor is further modified to improve its stability to changes in affine projection and illumination....
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...For the object recognition problem, Schmid & Mohr [19] also used the Harris corner detector to identify interest points, and then created a local image descriptor at each interest point from an orientation-invariant vector of derivative-of-Gaussian image measurements....
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..., Schmid & Mohr [19]) has shown that efficient recognition can often be achieved by using local image descriptors sampled at a large number of repeatable locations....
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...However, recent research on the use of dense local features (e.g., Schmid & Mohr [19]) has shown that efficient recognition can often be achieved by using local image descriptors sampled at a large number of repeatable locations....
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1,574 citations
"Object recognition from local scale..." refers methods in this paper
...[23] used the Harris corner detector to identify feature locations for epipolar alignment of images taken from differing viewpoints....
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