1. Department of Ophthalmology, Moran Eye Center, University of Utah, Salt Lake City, Utah, U.S.A.
2. Scientific Computing and Imaging Institute, University of Utah, Salt Lake City, Utah, U.S.A.
3. Sorenson Media, Salt Lake City, Utah, U.S.A.
4. Department Electrical and Computer Engineering, University of Utah, Salt Lake City, Utah, U.S.A.