"Visual Computing Café Seminar — Principles and Observation: How do people move?"

Jehee Lee, Seoul National University/Disney Research

September 27th (Friday), 12:30pm
Harold Frank Hall, Room 1132 (CS Conference Room)

The animation and simulation of human behavior is an important issue in the context of computer animation, games, robotics, and virtual environments. The study on human movements and animal locomotion has revealed various principles based on physics, biomechanics, physiology, and psychology. Many of existing animation techniques rely on those principles, which may be described as a form of mathematical equations, sets of rules, procedures, or algorithms. Another stream of research, called data-driven animation, made use of human motion data captured from live actors. The research on data-driven animation has developed a variety of techniques to edit, manipulate, segment and splice motion capture clips. In this talk, we argue that these two approaches are complementary to each other.

Over the past few years, we have explored several methods that addressed the problem of simulating human behaviors in virtual environments. Each solution relies on different principles of human movements and motion data captured at different scales. We found that principles and observed data can interact with each other in several ways. Sometimes, motion data drive physically-simulated bipeds to walk, turn, and spin. Physics principles guide interactive motion editing to make a canned jump higher/wider and a spin longer. Some principles can be learned from observed data to understand how people move in complex environments, what regularities human motion tends to exhibit, and how pedestrians behave in crowds. Understanding the interaction between principles and observed data would be a key aspect of character animation research.

About Jehee Lee:

photo of jehee lee Jehee Lee is a professor in the Department of Computer Science and Engineering at Seoul National University and currently with Disney Research at Los Angeles as a visiting research scientist. His research is in the area of computer graphics. He is particularly interested in developing new ways of understanding, representing, and animating human movements. This involves full-body motion analysis and synthesis, motion capture, motion planning, interactive avatar control, and intelligent synthetic characters. He is leading the Movement Research Lab.

About The Visual Computing Café Series:

The VCC is a new seminar series for the UCSB Center for Visual Computing. The bi-weekly seminar series will feature topics related to visual computing, spanning areas such as computer vision, computer graphics, image processing, augmented/virtual reality, imaging, visualization, and human-computer interaction. The speakers will be researchers in visual computing from both UCSB and the outside community.

Hosted by: UCSB Center for Visual Computing