Coupling reconstruction and motion estimation for dynamic MRI through optical flow constraint.
Ningning ZhaoDaniel O'ConnorWenbo GuDan RuanAdrian BasarabKe ShengPublished in: Medical Imaging: Image Processing (2018)
Keyphrases
- optical flow
- motion estimation
- brightness constancy assumption
- image sequences
- motion field
- optical flow computation
- optical flow estimation
- least squares
- block matching
- multi frame
- motion model
- flow field
- inter frame
- smoothness constraint
- motion segmentation
- motion vectors
- motion parameters
- high resolution
- camera motion
- moving objects
- video coding
- motion compensated
- magnetic resonance imaging
- dynamic environments
- feature tracking
- vector field
- magnetic resonance images
- image motion
- optical flow fields
- brightness constancy
- constraint equation
- motion compensation
- reference frame
- phase unwrapping
- frame interpolation