Graphics & User Interfaces
A fourth-year PhD student advised by Changxi Zheng, Li was selected for his research in a relatively new area of computer graphics: simulating sound based on the physics of actions and motions occurring within an animation.
Researchers create an algorithm that computes a reflector shape to boost signals for desired indoor areas while weakening them elsewhere. The reflector can be 3D-printed for $35. Limiting signal coverage also helps prevent nearby cyberattacks.
About
Computation is fundamentally changing the way people see and interact with the world. Many parts of society have been transformed by graphics and user interfaces.
The group has played instrumental roles in developing groundbreaking graphics for Hollywood movies, life-saving augmented and virtual reality applications in the medical field, camera phone technology used by billions of people, 3D printing technologies for consumers and industry uses, and AI tools that aid the computational design process. Additionally, they have a strong commitment to enabling computers to be used by all people regardless of ability.
The classes involve hands-on learning and help students develop a portfolio of projects that demonstrate their unique abilities and interests.
Computer-Enabled Abilities Laboratory 
Computer Vision and Graphics Center 
Columbia Computer Graphics Group 
Computer Graphics and User Interfaces Laboratory 
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