L1 norm of high frequency components as a regularization term for compressed sensing reconstruction of image signals.
Suwichaya SuwanwimolkulJitkomut SongsiriParichat SermwuthisarnSupatana AuethavekiatPublished in: ISPACS (2012)
Keyphrases
- compressed sensing
- high frequency components
- regularization term
- image reconstruction
- high frequency
- energy functional
- natural images
- multiscale
- energy function
- sparse representation
- objective function
- back projection
- signal processing
- fourier domain
- input image
- image features
- image classification
- high resolution
- low frequency
- image analysis
- test images
- image data
- image segmentation
- noisy images
- random projections
- reconstructed image
- image structure
- spatial domain
- super resolution
- image processing
- frequency domain
- subband
- image representation
- level set