Keyphrases
- post processing
- dictionary learning
- low dose
- sparse representation
- sparse coding
- computed tomography
- x ray
- computer tomography
- sparsity constraints
- ct scans
- image reconstruction
- preprocessing
- ct images
- compressive sensing
- three dimensional
- natural images
- image classification
- medical images
- medical imaging
- imaging modalities
- high dimensional
- contrast enhancement
- computer vision
- multiscale
- lung nodules
- high quality
- image representation
- signal reconstruction
- image processing