发明名称 |
Distortion-immune position tracking using redundant measurements |
摘要 |
A method and device for tracking a position of an object includes using a field sensor (52) associated with the object to measure field strengths of magnetic fields generated by two or more field generators (42), wherein a measurement of at least one of the field strengths is subject to a distortion. Rotation-invariant location coordinates of the object are calculated responsively to the measured field strengths. Corrected location coordinates of the object are determined by applying to the rotation-invariant location coordinates a coordinate correcting function so as to adjust a relative contribution of each of the measured field strengths to the corrected location coordinates responsively to the distortion in the measured field strengths. |
申请公布号 |
EP1887309(B1) |
申请公布日期 |
2016.07.06 |
申请号 |
EP20070253087 |
申请日期 |
2007.08.06 |
申请人 |
BIOSENSE WEBSTER, INC. |
发明人 |
BAR-TAL, MEIR;GOVARI, ASSAF |
分类号 |
G01B7/004;A61B5/06;A61M25/01;B25J9/16;G01D5/20;G01R33/025;G01R35/00;G01V3/08 |
主分类号 |
G01B7/004 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|