Nonconvex L1/2- regularized nonlocal self-similarity denoiser for compressive sensing based CT reconstruction.
Yunyi LiYiqiu JiangHengmin ZhangJianxun LiuXiangling DingGuan GuiPublished in: J. Frankl. Inst. (2023)
Keyphrases
- compressive sensing
- sparse reconstruction
- signal reconstruction
- random projections
- sparse representation
- objective function
- compressive sampling
- image recovery
- signal processing
- orthogonal matching pursuit
- distributed source coding
- ct images
- image reconstruction
- image representation
- x ray
- natural images
- least squares
- fan beam
- denoising
- data sets
- convex optimization
- sparse coding
- principal component analysis
- machine learning
- neural network