I am quite a noob in terms of modelling, as a matter of fact I am no artist, my expertise in software engineering and I happen to work with 3D graphics a lot.

My problem is as follows:

I have a character that was animated in Maya, using blended shapes for facial expressions. Now, I need to deform this characters face so that it matches as much as possible the geometry of a 3D scan of an actual head. (It doesn't need to be perfect)

Is there an easy way to do this without manually modifying the verticies of the original model?

I don't know about Maya, but in Softimage there are tools that allow to project a 3d object to another 3d object.
Even 3ds max have such tools.
I suppose Maya should have something similar.

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Andyba, 3d artist
skills: 3d modeling, texturing, rendering, 3d character animation, compositing
3d software experience: 3ds max, Maya, Softimage XSI, Deep Paint 3d, Body Paint 3D, Wings 3D, Z Brush
2d software experience: Adobe Photoshop, Adobe After effects, Macromedia Flash, Freehand