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Positional marker system with point light sources

  • US 7,444,178 B2
  • Filed: 10/05/2005
  • Issued: 10/28/2008
  • Est. Priority Date: 10/05/2004
  • Status: Expired due to Fees
First Claim
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1. A positional marker system trackable by an optical tracking system having a sensor with a predetermined pixel size, comprising:

  • at least one of a light-emitting and light-reflecting marker that can be positionally detected by the sensor of the optical tracking system, said at least one of the light-emitting and light-reflecting marker formed as a point light, said point light dimensioned such that an image of the point light detected by the sensor is smaller in size than the predetermined pixel size of the sensor, wherein the optical tracking system is a medical tracking system.

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