Combining position-based dynamics and gradient vector flow for 4D mitral valve segmentation in TEE sequences.
Lennart TautzLars WalczakJoachim GeorgiiAmer JazaerliKatharina VellguthIsaac WamalaSimon H. SündermannVolkmar FalkAnja HennemuthPublished in: Int. J. Comput. Assist. Radiol. Surg. (2020)
Keyphrases
- gradient vector flow
- active contours
- active contour model
- gvf snake
- vector field
- external force
- diffusion process
- mitral valve
- edge preserving
- patient specific
- level set
- image segmentation
- object boundaries
- shape prior
- segmentation method
- smoothness constraint
- level set method
- cardiac cycle
- segmentation algorithm
- improved algorithm
- multiscale
- edge map
- region growing
- video data
- least squares