Jason Porter, PhD, is a post-doctoral research fellow at the University of Rochester's Center for Visual Science in the laboratory of Dr. David R. Williams.Julianna E. Lin, M.Eng, is a member of the Research and Technology Staff for the Xerox Innovation Group at the Wilson Center for Research and Technology in Webster, NY.Hope Marcotte Queener, M.Sc, is an Application Developer at the University of Houston College of Optometry.Karen ThornAbdul Awwal, PhD, is a Research Scientist at the Lawrence Livermore National Laboratory.