Computer Graphics
Postdoctoral Researcher


Research Areas:

Appearance Modeling

Describing the appearance real physical materials with new models and algorithms.

Photorealistic Image Synthesis

Developing new techniques to generate images indistinguishable from what we see around us in the natural world.

Efficient Light Transport Models

Developing efficient, practical, and accurate models for light transport in complex materials.

Measurement Techniques

Designing methods for accurate measurement of real world material characteristics for use in various scientific fields.

Recent Publications:

A Layered, Heterogeneous Reflectance Model for Acquiring and Rendering Human Skin
Conditionally accepted to ACM Trans. Graph. (Proceedings of SIGGRAPH Asia), 2008

Radiance Caching for Participating Media
ACM Trans. Graphic., 27(1):1-11, 2008

Rendering Translucent Materials Using Photon Diffusion
In Rendering Techniques (Proceedings of the Eurographics Symposium on Rendering), 2007, 234--251, 2007.

Radiance Caching for Participating Media
In ACM SIGGRAPH Sketches and Applications, 2007

A Spectral BSSRDF for Shading Human Skin
In Rendering Techniques (Proceedings of the Eurographics Symposium on Rendering), pages 409--417, 2006

Acquiring Scattering Properties of Participating Media by Dilution
ACM Trans. Graphic. (Proceedings of ACM SIGGRAPH 2006), 25:1003--1012, 2006

Analysis of Human Faces using a Measurement-Based Skin Reflectance Model
ACM Trans. Graphic. (Proceedings of ACM SIGGRAPH 2006), 25:1013--1024, 2006

A Spectral Shading Model for Human Skin
In ACM SIGGRAPH Sketches and Applications, 2006

Light Diffusion in Multi-Layered Translucent Materials
ACM Trans. Graphic. (Proceedings of ACM SIGGRAPH 2005), 24(3):1032--1039, 2005

Bio:

I am currently a Postdoctoral Researcher in the Computer Graphics group at Columbia University, with Professor Ravi Ramamoorthi. Before joining the lab here at Columbia, I was a postdoc in the Graphics group of the University of California, San Diego, where I also did my Ph.D. under Professor Henrik Wann Jensen.