Persistent and automatic intraoperative 3D digitization of surfaces under dynamic magnifications of an operating microscope
3D stereovision digitization delivers persistent input for brain shift compensation. Feature-based algorithm recovers microscope zoom factors used by neurosurgeon. Zoom factors estimated within 0.06 on 4 full-length clinical brain tumor surgery videos. 3D cortical surfaces digitized in near real-time with accuracy in 0.541.35mm range.
magnification operating microscope stereovision intraoperative digitization surface reconstruction