Wrapping photorealistic textures

I want wo wrap textures (photos of a person) on a 3D-scan of that person. The result should be photorealistic. I have found no appropriate tutorials or documentation for this. Is that possible at all with Blender? Could anyone show me an example made with Blender?

You should look at Projection Painting the image onto your model
Examples:
http://www.blendercookie.com/2010/10/13/update-projection-painting-in-2-5/
http://www.youtube.com/watch?v=liWluJimWM0
http://www.youtube.com/watch?v=DBV4kReUigM&feature=related

Hi Richard,
thank you very much for the links! That´s what I was looking for.