title: B-spline explicit active surfaces: an efficient framework for real-time 3-D region-based segmentation.
abstract: A new formulation of active contours based on explicit functions has been recently suggested. This novel framework allows real-time 3-D segmentation since it reduces the dimensionality of the segmentation problem. In this paper, we propose a B-spline formulation of this approach, which further improves the computational efficiency of the algorithm. We also show that this framework allows evolving the active contour using local region-based terms, thereby overcoming the limitations of the original method while preserving computational speed. The feasibility of real-time 3-D segmentation is demonstrated using simulated and medical data such as liver computer tomography and cardiac ultrasound images.
authors.affiliation: Laboratory on Cardiovascular Imaging and Dynamics, Katholieke Universiteit Leuven, Leuven, Belgium. daniel.barbosa@uzleuven.be
authors.forename: Daniel
authors.initials: D
authors.lastname: Barbosa
authors.forename: Thomas
authors.initials: T
authors.lastname: Dietenbeck
authors.forename: Joel
authors.initials: J
authors.lastname: Schaerer
authors.forename: Jan
authors.initials: J
authors.lastname: D'hooge
authors.forename: Denis
authors.initials: D
authors.lastname: Friboulet
authors.forename: Olivier
authors.initials: O
authors.lastname: Bernard
mesh_terms: D000465:Algorithms; D003952:Diagnostic Imaging / Q000379:methods*; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D009716:Numerical Analysis, Computer-Assisted; D010363:Pattern Recognition, Automated / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity