title: Model completion via deformation cloning based on an explicit global deformation model.
abstract: Our main focus is the registration and visualization of a pre-built 3D model from preoperative images to the camera view of a minimally invasive surgery (MIS). Accurate estimation of soft-tissue deformations is key to the success of such a registration. This paper proposes an explicit statistical model to represent global non-rigid deformations. The deformation model built from a reference object is cloned to a target object to guide the registration of the pre-built model, which completes the deformed target object when only a part of the object is naturally visible in the camera view. The registered target model is then used to estimate deformations of its substructures. Our method requires a small number of landmarks to be reconstructed from the camera view. The registration is driven by a small set of parameters, making it suitable for real-time visualization.
authors.affiliation: Center for Visualization and Virtual Environments, University of Kentucky, USA. qhan@engr.uky.edu
authors.forename: Qiong
authors.initials: Q
authors.lastname: Han
authors.forename: Stephen E
authors.initials: SE
authors.lastname: Strup
authors.forename: Melody C
authors.initials: MC
authors.lastname: Carswell
authors.forename: Duncan
authors.initials: D
authors.lastname: Clarke
authors.forename: Williams B
authors.initials: WB
authors.lastname: Seales
mesh_terms: D000465:Algorithms; D001185:Artificial Intelligence; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008953:Models, Anatomic; D015233:Models, Statistical; D010363:Pattern Recognition, Automated / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013382:Subtraction Technique