Simple Example of a Turntable Scan

sketchfab

This is a simple method for scanning bones that I'm about to demonstrate with a quick example. Since I didn't have any actual bones on hand, I grabbed something else to use - a little bust of a character I created for fun years ago. A single loop of 25 images was shot using a 50mm lens on my Canon Rebel. Focusing was done in a lazy manner, with the chest area being the only part that received any attention. The shoulders were the most out-of-focus areas, and it's likely this is why they appear noisiest. With more careful focusing, cleaner results can be achieved. The camera settings used were 1/15th shutter speed, F/13.0 aperture, and an ISO of 800. Generated in MetaShape at "High" quality, I decided to skip creating a dense point cloud and instead generated the mesh from depth maps only. If you examine the edges of the subject which weren't captured by my camera, you'll see how the mesh was extrapolated from these areas. This creates an interesting effect if flipped over and viewed from the bottom. Using full coverage or generating a mesh with a dense point cloud can avoid this issue altogether.