Abstract
Over the last decade, digital photography has entered the mainstream
with inexpensive, miniaturized cameras for consumer use. Digital
projection is poised to make a similar breakthrough, with a variety of
vendors offering small, low-cost projectors. As a result, active
imaging is a topic of renewed interest in the computer graphics
community. In particular, low-cost homemade 3D scanners are now within
reach of students and hobbyists with a modest budget.This course provides a beginner with the necessary mathematics, software, and practical details to leverage projector-camera systems in their own 3D scanning projects. An example-driven approach is used throughout; each new concept is illustrated using a practical scanner implemented with off-the-shelf parts. The course concludes by detailing how these new approaches are used in rapid prototyping, entertainment, cultural heritage, and web-based applications.