Computational symmetry: Frieze and Wallpaper Groups and their applications
Yanxi Liu, School of Computer Science, Penn State

Frieze and wallpaper groups provide mathematical insights on 2D periodic patterns, while automatic classification of symmetry groups from real-world images is a non-trivial computational task. I will describe our effort in machine perception of periodic patterns for computer vision and computer graphics applications. I will also describe our effort in the formalization and computation of "skewed symmetry groups".