时间：12月11日星期四下午13：30
地点：浙大紫金港校区CAD&CG国家重点实验室402室
报告人：Dr. Yotam Gingold
主持人：黄劲　副教授
Title: Making and Editing Computer Graphics, with and without a Crowd

Abstract: Curves, surfaces, and images lie at the core of computer graphics. Algorithms for image and shape editing are difficult, because the underlying structures---the flowers in a photograph or sharp edges in a shape---are obvious to humans but challenging for computers to recognize.
In the first part of this talk, I will present a deformation technique that preserves the hand-made structure in 2D and 3D vector graphics (splines and subdivision surfaces). The technique is efficient, applies to the vector graphics formats used throughout 2D (PDF's, fonts, the web, illustrations) and 3D (industrial design and computer-aided design) computer graphics, and enables the entire body of existing linear blend skinning approaches to be used with vector graphics for the first time.
In the second portion of this talk, I will show how humans can help computers solve challenging perceptual problems, enabling structured image editing. I will show crowd-powered "algorithms" to add depth maps, normal maps, and bilateral symmetry maps to existing photographs.
In the final portion of this talk, I will preview several types of crowd creativity (drawing, painting, singing, and sculpting).

Bio: Yotam Gingold is an Assistant Professor in the computer science department at George Mason University. He runs the the Creativity and Graphics Lab (CraGL), whose mission is to solve challenging visual, geometry, and design problems and pursue foundational research into human creativity. His work is supported by the National Science Foundation and Google. Previously he was a post-doctoral researcher in the computer science departments of Columbia University, Rutgers University, Tel-Aviv University, and Herzliya IDC. Yotam earned his Ph.D. in Computer Science from New York University in 2009, where he was awarded the Janet Fabri Prize for most outstanding dissertation.