Marcelo E de Oliveira1, Henrique G Debarba1, Alexandre Lädermann2,3, Sylvain Chagué1, Caecilia Charbonnier1,4. 1. Medical Research Department, Artanim Foundation, Geneva, Switzerland. 2. Division of Orthopedics and Trauma Surgery, La Tour Hospital, Geneva, Switzerland. 3. Department of Orthopedic Surgery and Traumatology, Geneva University Hospital, Geneva, Switzerland. 4. Faculty of Medicine, University of Geneva, Geneva, Switzerland.
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.
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.
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