Fluoroscopic image processing for computer-aided orthopaedic surgery

  • Z. Yaniv
  • L. Joskowicz
  • A. Simkin
  • M. Garza-Jinich
  • C. Milgrom
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1496)


This paper describes the fluoroscopic X-ray image processing techniques of Fracas, a computer-integrated orthopaedic system for bone fracture reduction. Fluoroscopic image processing consists of image dewarping, camera calibration, and bone contour extraction. Our approach focuses on bone imaging and emphasizes integration, full automation, simplicity, robustness, and practicality. We describe the experimental setup and report results quantifying the accuracy of our methods. We show that after dewarping and calibration, submillimetric spatial positioning accuracy is achievable with standard equipment. We present a new bone contour segmentation algorithm based on robust image region statistics computation which yields good results on clinical images.


Camera Calibration Gradient Image Fluoroscopic Image Calibration Object Transpedicular Screw 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • Z. Yaniv
    • 1
  • L. Joskowicz
    • 1
  • A. Simkin
    • 2
    • 3
  • M. Garza-Jinich
    • 4
  • C. Milgrom
    • 3
  1. 1.Institute of Computer ScienceThe Hebrew Univ.JerusalemIsrael
  2. 2.Lab. of Experimental SurgeryHadassah Univ. HospitalJerusalemIsrael
  3. 3.Dept. of Orthopaedic SurgeryHadassah Univ. HospitalJerusalemIsrael
  4. 4.IIMAS - Univ. Nacional Autonoma de MexicoMexico 01000 DF

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