Isotropic PCA and Affine-Invariant Clustering.
S. Charles BrubakerSantosh S. VempalaPublished in: FOCS (2008)
Keyphrases
- affine invariant
- affine transformation
- k means
- principal component analysis
- principal components analysis
- clustering algorithm
- scale invariant
- multiscale
- object matching
- contour matching
- affine invariance
- dimensionality reduction
- high dimensional
- affine transform
- face recognition
- feature detectors
- fourier descriptors
- least squares
- singular value decomposition
- feature space
- data sets
- tensor field