title: Surface reconstruction from planar x-ray images using moving least squares.
abstract: Planar radiographs still are the gold standard for the measurement of the skeletal weight-bearing shape and posture. In this paper, we propose to use an as-rigid-as-possible deformation approach based on moving least squares to obtain 3D personalized bone models from planar x-ray images. Our prototype implementation is capable of performing interactive rate shape editing. The biplane reconstructions of both femur and vertebrae show a good accuracy when compared to CT-scan.
authors.affiliation: Ecole de Technologie Supèrieure, 1100 rue Notre-Dame Ouest, Montréal, Quebec, Canada.
authors.forename: T
authors.initials: T
authors.lastname: Cresson
authors.forename: B
authors.initials: B
authors.lastname: Godbout
authors.forename: D
authors.initials: D
authors.lastname: Branchaud
authors.forename: R
authors.initials: R
authors.lastname: Chav
authors.forename: P
authors.initials: P
authors.lastname: Gravel
authors.forename: J A
authors.initials: JA
authors.lastname: De Guise
mesh_terms: D000465:Algorithms; D001842:Bone and Bones / Q000000981:diagnostic imaging / Q000473:pathology; D003198:Computer Simulation; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods*; D016018:Least-Squares Analysis; D008279:Magnetic Resonance Imaging / Q000379:methods; D015233:Models, Statistical; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D015203:Reproducibility of Results; D013499:Surface Properties; D014965:X-Rays