发明名称 |
Wireless optical instrument for position measurement and method of use therefor |
摘要 |
Disclosed is a wireless instrument tracking system. The wireless instrument tracking system is used for determining the location of at least one point relative to the instrument in a three-dimensional space relative to a three-dimensional coordinate tracking system. Advantageously, a first wireless instrument can be placed into the optical field with the wireless instrument including a wireless receiver and at least one optical position indicator. The optical position indicator is typically light emitting diodes (18) and communicates with corresponding measurement sensors (30) across a wireless optical link. The wireless optical link is time multiplexed with repetitive time frames divided into time slots. Each LED (18) emits an infrared signal or flashes in a respective time slot of a time frame. The measurement sensors (30) are preferably CCD cameras. The LEDs (18) are synchronized with the cameras and once synchronized each LED (18) flashes in a different time slot in synchronization with the camera frame rate. |
申请公布号 |
AU3467499(A) |
申请公布日期 |
1999.10.25 |
申请号 |
AU19990034674 |
申请日期 |
1999.04.02 |
申请人 |
IMAGE GUIDED TECHNOLOGIES, INC.;IVAN FAUL;WALDEAN A SCHULZ;BRETT R. SKELTON;RONALD M. PASQUINI |
发明人 |
IVAN FAUL;WALDEAN A SCHULZ;BRETT R. SKELTON;RONALD M. PASQUINI |
分类号 |
G01B21/00;G01B11/03;G06F3/033;G06F3/042;G08C23/04 |
主分类号 |
G01B21/00 |
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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