I thought that, maybe, if I colored the face before scanning it, the surface would be recognized by algorithm. So, I took to seqeunces of photos. One without traces over the skin, and other with traces over the skin.
You can see in the scanning above, some areas empty.
Tutorial: Howto make 3d scanning with picures: http://arc-team-open-research.blogspot.com.br/2012/12/how-to-make-3d-scan-with-pictures-and.html
Well, I could use two photos, taken in front and side, but the face would be deformed by the perspective... I don't have a good camera (with controls) and this is expansive here in Brazil. I had to solve this problem using my simple smartphone with a 3.1 megapixels camera.
Addon: Bundler file importer (.out): https://projects.blender.org/tracker/index.php?func=detail&aid=30893&group_id=153&atid=467
So I imported the reconstructed face and I aligned it with the sparse points cloud.
Using four photos I projected the texture over the surface.