In vivo comparison of real-time tracking algorithms for interventional flexible endoscopy

Authors:
N. Masson;Fl. Nageotte;Ph. Zanne;M. De Mathelin
Affiliations:
Strasbourg University, LSIIT, UMR, CNRS;Strasbourg University, LSIIT, UMR, CNRS;Strasbourg University, LSIIT, UMR, CNRS;Strasbourg University, LSIIT, UMR, CNRS
Venue:
ISBI'09 Proceedings of the Sixth IEEE international conference on Symposium on Biomedical Imaging: From Nano to Macro
Year:
2009

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Abstract

Flexible endoscopes are used in many diagnostic and interventional procedures. Physiological motions may render the physicians task very difficult to perform. Assistance could be achieved by using motorized endoscopes and real-time visual tracking algorithm to automatically follow a selected target. In order to control the motors, one needs to have an accurate estimation of the motion of the target in the endoscopic view, which requires an efficient tracking algorithm. In this paper, we compare existing tracking algorithms on various in vivo targets in order to assess their behavior under different conditions. The study shows that several issues have to be overcome by tracking algorithms in in vivo environment like illumination change and forward/backward motions of the target.