Shift invariant sparse arrays and their optimal signal and noise subspaces.
Kaushallya AdhikariRichard J. VaccaroDaniel D. SartoriPublished in: Signal Process. (2022)
Keyphrases
- shift invariant
- signal dependent
- sparse coding
- phase information
- wavelet packet transform
- wavelet domain
- discrete wavelet transform
- high dimensional
- rotation invariant
- low frequency
- wavelet coefficients
- high frequency
- sparse representation
- feature space
- natural images
- additive noise
- signal to noise ratio
- image segmentation
- edge preserving
- blurred images
- signal processing
- dimensionality reduction