An Algorithm for Total Variation Minimization and Applications
Journal of Mathematical Imaging and Vision
Unwrap mosaics: a new representation for video editing
ACM SIGGRAPH 2008 papers
Gaze-Contingent 3D Control for Focused Energy Ablation in Robotic Assisted Surgery
MICCAI '08 Proceedings of the 11th International Conference on Medical Image Computing and Computer-Assisted Intervention, Part II
Soft Tissue Tracking for Minimally Invasive Surgery: Learning Local Deformation Online
MICCAI '08 Proceedings of the 11th International Conference on Medical Image Computing and Computer-Assisted Intervention, Part II
Gaze-Contingent Motor Channelling and Haptic Constraints for Minimally Invasive Robotic Surgery
MICCAI '08 Proceedings of the 11th International Conference on Medical Image Computing and Computer-Assisted Intervention, Part II
Affine-invariant anisotropic detector for soft tissue tracking in minimally invasive surgery
ISBI'09 Proceedings of the Sixth IEEE international conference on Symposium on Biomedical Imaging: From Nano to Macro
A duality based approach for realtime TV-L1 optical flow
Proceedings of the 29th DAGM conference on Pattern recognition
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Tissue deformation tracking is an important topic of minimally invasive surgery with applications ranging from intra-operative guidance to augmented reality visualisation. In this paper, we present a technique for visual tracking of irregular structures with an arbitrary degree of connectivity in space. The variational formulation of the proposed method ensures that correlation is maximised between tracked points and their computed new positions while the overall structure shape variation is minimised, thus maintaining spatial coherence of the tracked structure. The proposed method is applied to surgical annotation and tracking in 3D for telementoring and path-planning. The results are validated both on a CT-scanned phantom model and in vivo, showing an average alignment error of 1.79 mm (±0.72 mm).