Automatic Extraction of Femur Contours from Calibrated Fluoroscopic Images

  • Authors:
  • Xiao Dong;Miguel A. Gonzalez Ballester;Guoyan Zheng

  • Affiliations:
  • University of Bern, MEM Research Center, Bern, Switzerland;University of Bern, MEM Research Center, Bern, Switzerland;University of Bern, MEM Research Center, Bern, Switzerland

  • Venue:
  • WACV '07 Proceedings of the Eighth IEEE Workshop on Applications of Computer Vision
  • Year:
  • 2007

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Abstract

Automatic identification and extraction of bone contours from x-ray images is an essential first step task for further medical image analysis. In this paper we propose a 3D statistical model based framework for the proximal femur contour extraction from calibrated x-ray images. The automatic initialization is solved by an Estimation of Bayesian Network Algorithm to fit a multiple component geometrical model to the x-ray data. The contour extraction is accomplished by a non-rigid 2D/3D registration between a 3D statistical model and the x-ray images, in which bone contours are extracted by a graphical model based Bayesian inference. Preliminary experiments on clinical data sets verified its validity.