发明名称 |
Distortion-immune position tracking using redundant magnetic field measurements |
摘要 |
A method for tracking a position of an object includes using a field sensor associated with the object to measure field strengths of magnetic fields generated by two or more field generators, 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 |
US8082020(B2) |
申请公布日期 |
2011.12.20 |
申请号 |
US20060462733 |
申请日期 |
2006.08.07 |
申请人 |
BAR-TAL MEIR;GOVARI ASSAF;BIOSENSE WEBSTER, INC. |
发明人 |
BAR-TAL MEIR;GOVARI ASSAF |
分类号 |
A61B5/05 |
主分类号 |
A61B5/05 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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