Method for calibrating objects in a reference coordinate system and method for tracking objects
AssigneeCarl Zeiss Meditec AG
InventorsSteffen Urban, Stefan Saur, Christian Voigt
Life of this patent
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Abstract
A method for calibrating an object includes determining a position and an alignment of the object in a reference coordinate system, determining the position of at least three measurement spots by at least one capture apparatus, determining a target spot having a fixed spatial relationship with the measurement spots, determining a spatial relationship between the target spot and a tracking spot located on the object by virtue of the tracking spot being positioned at a calibration spot, and determining the spatial location of the calibration spot by a sensor.
Claims14
A method for calibrating an object, the method comprising:
- determining a position and an alignment of the object in a reference coordinate system;
- determining positions of at least three measurement spots by at least one capture apparatus;
- determining a target spot having a fixed spatial relationship with the at least three measurement spots;
- determining a spatial relationship between the target spot and a tracking spot located on the object with the tracking spot being positioned at a calibration spot;
- and
- determining a spatial location of the calibration spot by a sensor.
A method for tracking an object in a reference coordinate system, the method comprising:
- calibrating of the object by:
- determining a position and an alignment of the object in the reference coordinate system;
- determining the position of at least three measurement spots by at least one capture apparatus;
- determining a target spot having a fixed spatial relationship with the at least three measurement spots;
- determining a spatial relationship between the target spot and a tracking spot located on the object with the tracking spot being positioned at a calibration spot;
- and
- determining a spatial location of the calibration spot by a sensor.
Dependencies are inferred from the claim text.