5/22/2023 0 Comments Surfer 13 tutorial![]() ![]() ![]() This when represented as a vector gives SURF feature descriptor with total 64 dimensions. For each subregion, horizontal and vertical wavelet responses are taken and a vector is formed like this, \(v=( \sum)\). A neighbourhood of size 20sX20s is taken around the keypoint where s is the size. For feature description, SURF uses Wavelet responses in horizontal and vertical direction (again, use of integral images makes things easier).
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