Low-dose spectral CT reconstruction using L0 image gradient and tensor dictionary.
Weiwen WuYanbo ZhangQian WangFenglin LiuPeijun ChenHengyong YuPublished in: CoRR (2018)
Keyphrases
- low dose
- image gradient
- computer tomography
- low contrast
- imaging modalities
- computed tomography
- x ray
- image reconstruction
- ct scans
- ct images
- medical images
- contrast enhancement
- positron emission tomography
- object boundaries
- dual energy
- three dimensional
- medical imaging
- lung nodules
- ct data
- medical diagnosis
- input image
- image structure
- clinical applications
- magnetic resonance imaging
- blood vessels
- optical flow
- active contours
- x ray images
- fully automatic
- gray level
- high resolution
- diffusion tensor
- image enhancement
- multiscale
- image registration
- energy functional
- image regions
- image data
- automatic segmentation
- intraoperative
- shape prior
- surgical procedures
- high frequency
- image analysis
- mr images
- image processing