Lower bounds for multivariate approximation by affine-invariant dictionaries.
Vitaly MaiorovRon MeirPublished in: IEEE Trans. Inf. Theory (2001)
Keyphrases
- affine invariant
- lower bound
- affine transformation
- upper bound
- multiscale
- fourier descriptors
- objective function
- scale invariant
- affine invariance
- min sum
- affine transform
- optimal solution
- contour matching
- object matching
- sparse representation
- feature detectors
- zernike moments
- convex hull
- log euclidean
- arc length
- scale space
- feature space
- image analysis
- error bounds