The Pathfinder image-guided surgical robot

被引:27
|
作者
Deacon, G. [1 ]
Harwood, A. [2 ]
Holdback, J. [3 ]
Maiwand, D. [4 ]
Pearce, M. [5 ]
Reid, I. [6 ]
Street, M. [7 ]
Taylor, J. [8 ]
机构
[1] Vis & Graph Ltd, Robot, Reigate, England
[2] EDC Int Ltd, Reading, Berks, England
[3] Measurement Technol Ltd, Moreton In Marsh, England
[4] JP Morgan, London, England
[5] Toshiba Med Visualizat Syst Europe Ltd, Edinburgh, Midlothian, Scotland
[6] Univ Oxford, Oxford, England
[7] Prosurgics Ltd, Bracknell, Berks, England
[8] Enodo Ltd, Manchester, Lancs, England
关键词
frameless stereotaxy; kinematic calibration; camera calibration; non-linear parameter identification; multiple view geometry; image registration; bundle adjustment; POSITIONING ACCURACY;
D O I
10.1243/09544119JEIM617
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
This paper first describes the workflow of the Pathfinder image-guided surgical robot that has been designed to replace the stereotactic frame in neurosurgery, and then details the calibration stages employed in order to achieve submillimetre positioning accuracy of a tool tip. The process uses non-linear parameter identification techniques in conjunction with some procedures for camera calibration, which exploit the fact that the camera is mounted to a calibrated robot arm that executes precise motions.
引用
收藏
页码:691 / 713
页数:23
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