This is a photogrammetry scan of a mannequin head made for a YouTube video on how to copy physical objects. This head was scanned with 40 images using Agisoft Photoscan. As is obvious this scan had a lot of issues, but still managed to come out somewhat interesting.
Watch the full video for more in depth in how this was created: https://youtu.be/0WTns1ItVss
Also make sure to check out the three other models in this series, one other failure, one successful and cropped scan and one scan complete with textures.