Bayesian differentiation of multi-scale line-structures for model-free instrument segmentation in thoracoscopic images

  • Authors:
  • Luke Windisch;Farida Cheriet;Guy Grimard

  • Affiliations:
  • Ecole Polytechnique de Montreal, Montreal, Canada;Ecole Polytechnique de Montreal, Montreal, Canada;Department of Orthopaedics, Sainte Justine Hospital, Montreal, Canada

  • Venue:
  • ICIAR'05 Proceedings of the Second international conference on Image Analysis and Recognition
  • Year:
  • 2005

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Abstract

A reliable method to segment instruments in endoscope images is required as part of an enhanced reality system for minimally invasive surgery of the spine. Numerous characteristics of these images make typical intensity or model constraints for segmentation impractical. Rather, line-structure concepts are used to exploit the high length-to-diameter ratio expected of surgical instruments. A Bayesian selection scheme is proposed, and is shown to reliably differentiate these target objects from other line-like background structures.