Abstract:

Early generations of tiled multi-projector displays were expensive, driven by cost prohibitive monolithic rendering machines which justified the use of expensive rigid optical and mechanical infrastructure to register the images from the many projectors. Current generation multi-projector displays use commodity projectors, are driven by inexpensive PC clusters, and hence are very affordable. To support scalability, common due to reduced cost, automatic camera-based registration techniques have been explored in the last decade.

But, despite the low cost and the supposed flexibility imparted by the automated registration, these displays are still quarantined to hi-tech environments that can provide a critical mass of 'educated' users. This is due to two reasons. First, these displays are still very constrained in terms of the devices, environment and architecture used, resulting in an utterly complicated deployment, unreasonable to expect of 'layman' users. Second, perfect seamlessness is yet to be successfully achieved in these, especially when built of commodity products.

This talk presents the advances made to remove such constraints and bring in an hitherto unrealized ease in deployment that can be achieved by almost anyone. Methodologies will be presented that allow imperfect/uncalibrated devices, flexible driving architecture, and new generation devices and still achieve perceptually seamless displays. Thus, we advance the frontiers towards self-calibrating, flexible, reconfigurable and hence truly scalable displays.

Bio:

Aditi Majumder is an assistant professor at the Department of Computer Science in University of California, Irvine. She received her BE in Computer Science and Engineering from Jadavpur University, Calcutta, India in 1996 and PhD from Department of Computer Science, University of North Carolina at Chapel Hill in 2003.

Her research area is computer graphics and vision, image processing with primary focus on multi-projector displays. Her research aims to make multi-projector displays truly commodity products and easily accessible to the common man. Her significant research contributions include photometric and color registration across multi-projector displays, enabling use of imperfect projectors in tiled displays and more recently a distributed framework for tiled displays via a distributed network of projector-camera pairs. She is the co-author of the book "Practical Multi-Projector Display Design". She was the program and general co-chair of the Projector-Camera Workshop 2005, co-located with CVPR'05. She was also the conference co-chair for ACM Virtual Reality Software and Technology 2007.