 |
HAL-LIRMM - Open Archive |  |
Journal articles
A triangular radial cubic spline deformation model for efficient 3D beating heart tracking
Abstract : A novel deformable model is proposed for efficient 3D visual tracking of beating heart. The model is parameterized by the 3D coordinates of four control points: the three vertices and the circumcenter of a triangular target region. Nonlinear deformation on heart surfaces is handled by cubic spline interpolation based on radial pixel distances from the circumcenter. With a pre-computable design matrix, the model can be represented efficiently by a simple matrix equation. An iterative algorithm is developed based on the efficient second-order minimization to compute model parameters at each frame. The proposed tracking method is validated on the stereo-endoscopic videos of phantom heart and in vivo heart that are recorded by the da Vinci ® surgical system.
Keywords :
Beating heart tracking
https://hal-lirmm.ccsd.cnrs.fr/lirmm-01624764
Contributor : Chao Liu <>
Submitted on : Thursday, October 26, 2017 - 4:57:02 PM
Last modification on : Wednesday, September 5, 2018 - 10:54:01 AM
Contributor : Chao Liu <>
Submitted on : Thursday, October 26, 2017 - 4:57:02 PM
Last modification on : Wednesday, September 5, 2018 - 10:54:01 AM