title: Automatic deformable surface registration for medical applications by radial basis function-based robust point-matching.
abstract: Deformable surface mesh registration is a useful technique for various medical applications, such as intra-operative treatment guidance and intra- or inter-patient study. In this paper, we propose an automatic deformable mesh registration technique. The proposed method iteratively deforms a source mesh to a target mesh without manual feature extraction. Each iteration of the registration consists of two steps, automatic correspondence finding using robust point-matching (RPM) and local deformation using a radial basis function (RBF). The proposed RBF-based RPM algorithm solves the interlocking problems of correspondence and deformation using a deterministic annealing framework with fuzzy correspondence and RBF interpolation. Simulation tests showed promising results, with the average deviations decreasing by factors of 21.2 and 11.9, respectively. In the human model test, the average deviation decreased from 1.72±1.88mm to 0.57±0.66mm. We demonstrate the effectiveness of the proposed method by presenting some medical applications.
authors: Center for Bionics, Korea Institute of Science and Technology, Seoul, South Korea; Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA, United States. Electronic address: junekim@kist.re.kr.
authors: Youngjun
authors: Y
authors: Kim
authors: Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA, United States. Electronic address: yonghum@gmail.com.
authors: Yong Hum
authors: YH
authors: Na
authors: Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA, United States. Electronic address: lei@stanford.edu.
authors: Lei
authors: L
authors: Xing
authors: Department of Radiation Oncology, Ewha Woman's University College of Medicine, Seoul, South Korea. Electronic address: renalee@ewha.ac.kr.
authors: Rena
authors: R
authors: Lee
authors: Center for Bionics, Korea Institute of Science and Technology, Seoul, South Korea. Electronic address: sehyung@kist.re.kr.
authors: Sehyung
authors: S
authors: Park
mesh_terms: D000465:Algorithms; D054893:Cone-Beam Computed Tomography; D003952:Diagnostic Imaging / Q000379:methods*; D006257:Head / Q000000981:diagnostic imaging; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional; D008954:Models, Biological; D061848:Optical Imaging; D011880:Radiotherapy Planning, Computer-Assisted
keywords: Automatic correspondence; Deformable registration; Mesh deformation; Radial basis function; Robust point matching