Jonathan Ragan-Kelley

Bio

I am a PhD student in computer science at MIT, where I work with Frédo Durand and Saman Amarasinghe. My work focuses on high-efficiency computer graphics, at the intersection of graphics with systems, architecture, and compilers. I am currently building a programming language and compiler for efficient image processing. I was previously in Pat Hanrahan's group at Stanford, have 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.

Faculty Application Materials

Curriculum Vitae

Research Statement

Teaching Statement

Publications

 

Halide: A Language and Compiler for Optimizing Parallelism, Locality, and Recomputation in Image Processing Pipelines

Jonathan Ragan-Kelley, Connelly Barnes, Andrew Adams, Sylvain Paris, Frédo Durand, Saman Amarasinghe

PLDI 2013

 

Decoupling Algorithms from Schedules for Easy Optimization of Image Processing Pipelines

Jonathan Ragan-Kelley, Andrew Adams, Sylvain Paris, Marc Levoy, Saman Amarasinghe, Frédo Durand

ACM Transactions on Graphics 31(4) (Proc. SIGGRAPH 2012)

 

Decoupled Sampling for Graphics Pipelines

Jonathan Ragan-Kelley, Jaakko Lehtinen, Jiawen Chen, Michael Doggett, Frédo Durand

ACM Transactions on Graphics 30(3) (Presented at SIGGRAPH 2011)

 

A Hierarchical Volumetric Shadow Algorithm for Single Scattering

Ilya Baran, Jiawen Chen, Jonathan Ragan-Kelley, Frédo Durand, Jaakko Lehtinen

ACM Transactions on Graphics 29(5) (Proc. SIGGRAPH Asia 2010)

 

The Lightspeed Automatic Interactive Lighting Preview System

Jonathan Ragan-Kelley, Charlie Kilpatrick, Brian Smith, Doug Epps, Paul Green, Christophe Hery, Frédo Durand

ACM Transactions on Graphics 26(3) (Proc. Siggraph 2007)

 

The Lightspeed Automatic Interactive Lighting Preview System

Master's thesis, MIT, June 2007

(William A. Martin award for best S.M. thesis in Computer Science at MIT.)

 

Practical Interactive Lighting Design for RenderMan Scenes

Undergraduate honors thesis, Stanford, May 2004

(Best Undergraduate Thesis award in Computer Science; Firestone Medal for Undergraduate Research.)