Patent ID: 11947736
Assignee: VARJO TECHNOLOGIES OY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 21:
22. The method of claim 15, wherein the at least one light source comprises a first light source and a second light source that, in operation, provide light having a first wavelength and a second wavelength, respectively, the second wavelength being different from the first wavelength, and wherein the at least one image segment comprises a first image segment and a second image segment that represent the first light source and the second light source, respectively,
wherein the method comprises:
determining a first level of focussing of the first light source in the at least one image and a second level of focussing of the second light source in the at least one image, based on characteristics associated with pixels of the first image segment and the second image segment, respectively; and
determining a first distance between the at least one camera and the first light source and a second distance between the at least one camera and the second light source, by interpolating and/or extrapolating reference focussing distances corresponding to the first wavelength and the second wavelength of light according to the first level of focussing and the second level of focussing, the first distance and the second distance being used for determining the pose of the at least one controller in the global coordinate space.