A hand‐eye calibration method for augmented reality applied to computer‐assisted orthopedic surgery

摘要

Abstract Background: Augmented reality (AR) allows the surgeon to represent holographic patient‐specific anatomical information and surgical instruments in the physical world. To correctly superimpose virtual and physical objects, a hand‐eye (HE) calibration method for mapping the virtual and physical spaces was proposed. Methods: Mathematical relationships between the virtual camera and the physical space were derived. Finally, the accuracy and robustness of the proposed HE calibration method were qualitatively and quantitatively evaluated. Results: The proposed calibration method allows us to determine an optimal invariant spatiotemporal mapping between the virtual camera and the physical space. Conclusion: Qualitatively and quantitatively reliable and accurate estimates for the physical‐virtual mapping transformation were verified. Consequently, imaging data and surgical instruments holograms can be precisely represented in the physical space.