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US 7,444,178 B2Granted
Positional marker system with point light sources
AssigneeBrainlab AG
InventorGünter Goldbach
Life of this patent
Estimating the term…
Abstract
A positional marker system is disclosed. The positional marker system includes at least one light-emitting or light-reflecting marker that can be positionally detected by an optical tracking system, such as a medical tracking system, wherein the emitting and/or reflecting portion of the marker or markers is formed as a point light source and/or point light reflector.
Claims13
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.
Dependencies are inferred from the claim text.