His research is in the areas of Computer Vision, Machine Learning and Computer Graphics. He is interested in building statistical models of images both at the high level of objects and scenes and also at the low level of pixels and edges. These models may then be deployed in a variety of problems. Those of particular interest include: object recognition, image search and computational photography.

He currently works with two students: Dilip Krishnan and Melanie Clements. He is a member of the Vision, Learning and Graphics group.