| CPC G06T 7/85 (2017.01) [A61B 90/20 (2016.02); A61B 2034/2065 (2016.02); G06T 2207/10056 (2013.01)] | 20 Claims |
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1. A computer-implemented method of calibrating an optical system of a surgical microscope, the method comprising:
acquiring first position data via the optical system having a first calibration, wherein the first position data describes an estimated spatial position of a distal section of an associated object within a first co-ordinate system assigned to the optical system;
acquiring second position data via a detection system separate from the optical system, wherein the second position data describes a spatial position of a proximal section of the associated object within a second co-ordinate system assigned to the detection system;
acquiring transformation data that describes a co-ordinate transformation between the first co-ordinate system and the second co-ordinate system;
acquiring object model data that describes a predefined relative position between the distal section of the associated object and the proximal section of the associated object;
determining calibration data based on the first position data, the second position data, the transformation data, and the object model data, wherein the calibration data describes a second calibration of the optical system for which the spatial position of the associated object acquired via the optical system using the second calibration would align with the spatial position of the associated object acquired via the detection system; and
acquiring adjusted first position data via the optical system using the second calibration, wherein the adjusted first position data describes a corrected spatial position of the associated object within the first co-ordinate system assigned to the optical system.
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