Implementing “Visual Categorization with Bag of Keypoints”
نویسنده
چکیده
First of all, we downloaded 8 directories from Caltech 101, and used “sift.m” as a function by David Lowe to get SIFT descriptors from each image. However, it took almost forever when we used 8 directories. Therefore, we ended up using only 3 directories: anchors, elephants, and helicopters. By using function ‘sift’ we gathered many descriptors for each image. Some of the images and their SIFT features are shown in Figure 1.
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