I lead the Interactive Visual Media Group at Microsoft Research, the research arm of Microsoft Corporation. I also have an Affiliate Professor appointment at the University of Washington.

My research areas include computer vision and computer graphics.

My particular interests are in using vision to automatically build 3-D models from images, computational photography, and image-based rendering. I have worked on both traditional 3-D volumetric and surface model reconstruction, and on high-resolution image mosaic construction. I am also interested in using computer vision for human-computer interaction and for analysing image databases. I have additional research interests in geometric modeling, motion estimation, multiresolution algorithms and representations, and optimization algorithms.