Prof. H. Joel Trussell, Professor and Director of Graduate Programs
North Carolina State University
Multi-projector displays use multiple commercial digital projectors to display large images in a cost effective, spatially compact environment. Recent work has shown that the alignment and coordination of the projectors can be done with software, without the time-consuming precision of physical alignment that was necessary with previous systems. We will discuss the formulation and solution of the problems of aligning the projectors’ fields, blending of the overlapping regions of projectors, performing interpolation and resolution enhancement, and maintaining color quality. The advantages of such a software controlled system include versatility, flexibility, scalability and cost effectiveness.
Joel Trussell joined the Los Alamos Scientific Laboratory, NM, where he began working in the image and signal processing in 1971. He was a visiting professor at Heriot-Watt University, Edinburgh, Scotland (1978-79). In 1980, he joined the Electrical and Computer Engineering Department at North Carolina State University, Raleigh, NC, where he is professor and director of graduate programs. He was visiting scientist at the Eastman Kodak Company (1988-89) and at Color Savvy Systems (1997-98). He was a Visiting Fellow Commoner at Trinity College of Cambridge University in 2007. He is curently a visiting scientist with HP labs in Palo Alto, CA. He served as associate editor for several IEEE publications and was elected to the board of the IEEE-SP Society. He is a Fellow of the IEEE and co-recipient of two IEEE best paper awards.