I joined the Electrical, Computer, and Systems Engineering department at Rensselaer Polytechnic Institute in August, 2001, where I am now a Full Professor.I have a dual B.A. degree in math and computational and applied math from Rice University,an M.A. in computational and applied math from Rice University, and M.A. and Ph.D. degrees in electrical engineering from Princeton University. I was an intern at the Mathworks, developing numerical linear algebra and signal processing routines. During my Ph.D. I investigated several estimation problems in digital video, including the efficient estimation of projective transformations and the synthesis of photorealistic "virtual video", in collaboration with IBM's Tokyo Research Laboratory.

My current research interests include computer vision problems related to modeling 3D environments with visual and range imagery, designing and analyzing large camera networks, and machine learning problems for radiotherapy applications. I am affiliated with the NSF Engineering Research Center for Subsurface Sensing and Imaging Systems (CenSSIS), the DHS Center of Excellence on Explosives Detection, Mitigation and Response (ALERT), and Rensselaer's Experimental Media and Performing Arts Center (EMPAC). I received an NSF CAREER award in March 2003 and was a member of the 2007 DARPA Computer Science Study Group. I am a Senior Member of the IEEE and an Associate Editor of IEEE Transactions on Image Processing. In Fall 2012, Cambridge University Press published my textbook Computer Vision for Visual Effects. I have a Youtube channel filled with lectures on computer vision, image processing, and signal processing.