Jonathan Ragan-Kelley is a PhD student in computer science at MIT, where he works with Frédo Durand and Saman Amarasinghe. His work focuses on high-efficiency computer graphics, at the intersection of graphics with systems, architecture, and compilers. He is currently building a programming language and compiler for efficient image processing. He was previously in Pat Hanrahan's group at Stanford, has worked at all three major GPU vendors in architecture, software, compilers, and research, and built a real-time preview system for the special effects industry in collaboration with Industrial Light & Magic.

http://people.csail.mit.edu/jrk