Inter-slice Resolution Improvement of Lung 4D-CT via Adaptively Patch Partition and Sparse Representation.
Yu ZhangLei CaoQianjin FengWufan ChenPublished in: ICIG (2013)
Keyphrases
- sparse representation
- image patches
- ct images
- dictionary learning
- sparse coding
- lung cancer
- computed tomography
- image classification
- face recognition
- ct data
- compressive sensing
- random projections
- high dimensional data
- ground glass opacity
- regularized least squares
- joint optimization
- sparse approximations
- ct scans
- reconstruction error
- dimensionality reduction
- image representation
- negative matrix factorization
- test images
- signal processing
- low resolution
- medical imaging
- sparse reconstruction
- compressed sensing
- lung cancer patients
- high resolution
- sparse learning
- piecewise smooth
- sparsity constraints
- data sets
- lung disease
- image reconstruction
- norm minimization
- image processing
- pattern recognition
- multislice
- neural network
- three dimensional
- higher order
- face images
- bag of words