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News/Higher order PCA-like rotation-invariant features for detailed shape descriptors modulo rotation
arxiv
PublishedJune 11, 2026 at 4:00 AM
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Higher order PCA-like rotation-invariant features for detailed shape descriptors modulo rotation

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arXiv:2601.03326v2 Announce Type: replace-cross Abstract: PCA can be used for rotation invariant features, describing a shape with its $p_{ab}=E[(x_i-E[x_a])(x_b-E[x_b])]$ covariance matrix approximating shape by ellipsoid, allowing for rotation invariants like its traces of powers. However, real sh

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