Reflectance Transformation Imaging

Reflectance Transformation Imaging

Reflectance Transformation Imaging is a way to get high-resolution models of the surfaces of objects. It works by having taking many pictures from the same location while changing the angle of light on the object, casting many different shadows on it.

One way to go about this is to have a single light in a dark room that is moved around by hand, taking measurements of each motion. Because that can be cumbersome and inaccurate, we based our design around another method, which was to place a semi-circular dome filled with high-power lights at precise angles over the object, and to switch to lights on and off.