Figure 4.

NeRF surfaces capture much finer detail and sharper edges than surfaces from the VECTRA H1 camera but are much noisier and more susceptible to artifacts from light reflections. (Top) From left to right, a surface obtained from a CT of a hip implant with fiducials from the CT surface and both H1 and NeRF surface fiducials overlaid, an H1 surface of a hip implant registered to the CT surface, and a NeRF surface registered to the CT surface. Red markers indicate CT fiducials, green indicate H1 surface fiducials, and yellow indicate NeRF surface fiducials. Similar results are shown for the knee implant (center) and the chuck-eye steak (bottom). Surface colors indicate the surface distance of each point on the photogrammetry surface to the CT surface.