CHI '92 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Dynamic shadow removal from front projection displays
Proceedings of the conference on Visualization '01
Scalable alignment of large-format multi-projector displays using camera homography trees
Proceedings of the conference on Visualization '02
The Interactive Workspaces Project: Experiences with Ubiquitous Computing Rooms
IEEE Pervasive Computing
iLamps: geometrically aware and self-configuring projectors
ACM SIGGRAPH 2003 Papers
Camera-Based Detection and Removal of Shadows from Interactive Multiprojector Displays
IEEE Transactions on Visualization and Computer Graphics
Virtual rear projection: do shadows matter?
CHI '05 Extended Abstracts on Human Factors in Computing Systems
Improving the Speed of Virtual Rear Projection: A GPU-Centric Architecture
CVPR '05 Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Workshops - Volume 03
UIST '06 Proceedings of the 19th annual ACM symposium on User interface software and technology
To frame or not to frame: the role and design of frameless displays in ubiquitous applications
UbiComp'05 Proceedings of the 7th international conference on Ubiquitous Computing
Visible imagination: projected play
Proceedings of the 23rd British HCI Group Annual Conference on People and Computers: Celebrating People and Technology
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Front projection allows large displays to be deployed relatively easily. However, it is sometimes difficult to find a location to place a projector, especially for ad-hoc installations. Additionally, front projection suffers from shadows and occlusions, making it ill-suited for interactive displays. The GVU-PROCAMS system allows programmers to deploy projectors and displays easily in arbitrary locations by enabling enhanced keystone correction via warping on 3D hardware. In addition, it handles the calibration of multiple projectors using computer vision to produce a redundantly illuminated surface. Redundant illumination offers robustness in the face of occlusions, providing a user with the experience of a rear-projected surface. This paper presents a stand-alone application (WinPVRP) and a programming system (GVU-PROCAMS) that easily allows others to create projected displays with enhanced warping and redundant illumination.