Environment Matting Extensions: Towards Higher Accuracy and Real-Time Capture
Journal
SIGGRAPH 2000 - Proceedings of the 27th Annual Conference on Computer Graphics and Interactive Techniques
ISBN
1581132085
Date Issued
2000-07-01
Author(s)
Abstract
Environment matting is a generalization of traditional bluescreen matting. By photographing an object in front of a sequence of structured light backdrops, a set of approximate light-transport paths through the object can be computed. The original environment matting research chose a middle ground—using a moderate number of photographs to produce results that were reasonably accurate for many objects. In this work, we extend the technique in two opposite directions: recovering a more accurate model at the expense of using additional structured light backdrops, and obtaining a simplified matte using just a single backdrop. The first extension allows for the capture of complex and subtle interactions of light with objects, while the second allows for video capture of colorless objects in motion.
Subjects
Alpha channel | augmented reality | blue spill | blue-screen matting | clip art | colored transparency | environment map | environment matte | image-based rendering | real-time capture | reflection | refraction
SDGs
Type
conference paper