Surface extraction and thickness measurement of the articular cartilage from MR images using directional gradient vector flow snakes.
Jinshan TangSteven MillingtonScott T. ActonJeff CrandallShepard HurwitzPublished in: IEEE Trans. Biomed. Eng. (2006)
Keyphrases
- articular cartilage
- mr images
- gradient vector flow
- manual segmentation
- active contours
- active contour model
- magnetic resonance
- force field
- magnetic resonance images
- medical images
- external force
- vector field
- edge preserving
- object boundaries
- automated segmentation
- diffusion process
- nonrigid registration
- smoothness constraint
- image data
- level set method
- segmentation method
- deformable models
- image segmentation
- energy function
- energy functional
- image intensity
- higher order
- automatic segmentation
- shape prior
- image analysis
- medical imaging
- x ray
- three dimensional