Exploring Defocus Matting: Nonparametric Acceleration, Super-Resolution, and Off-Center Matting

Defocus matting is a fully automatic and passive method for pulling mattes from video captured with coaxial cameras that have different depths of field and planes of focus. Nonparametric sampling can accelerate the video-matting process from minutes to seconds per frame. In addition, a super-resolution technique efficiently bridges the gap between mattes from high-resolution video cameras and those from low-resolution cameras. Off-center matting pulls mattes for an external high-resolution camera that doesn´t share the same center of projection as the low-resolution cameras used to capture the defocus matting data. In this article, we address these limitations and extend defocus matting in several important ways. IEEE Computer Graphics and Applications This work may not be copied or reproduced in whole or in part for any commercial purpose. Permission to copy in whole or in part without payment of fee is granted for nonprofit educational and research purposes provided that all suc...

• Type: Journal
• Year: 2007
• Where: CGA
• Authors: Neel Joshi, Wojciech Matusik, Shai Avidan, Hanspeter Pfister, William T. Freeman
• Keywords: Cameras, CGA 2007, Computational Geometry, Electric Research Laboratories, Mitsubishi Electric Research