Restoration without the restoration
Fascinating idea from the Computer Science guys at Purdue.
Instead of doing expensive and dangerous chemical restoration on art, you use this completely non-evasive method. A 3D image of the object is acquired. One then calculates how the restored item is supposed to look (filling in paint gaps/color correction/etc), and this program controls projectors that projects the color and image correction back onto the object via off the shelf digital projectors. Fascinating!