Mitsubishi Electric Research Lab
Projector calibration paper, presented at UIST 2004 in Santa Fe, New Mexico.
Projector calibration video (31.8 MB).
I spent the summer of 2003 as a research intern at Mitsubishi Electric Research Lab (MERL) in Cambridge, Massachusetts. While at MERL, I worked with Paul Dietz on a project called Digital Merchandising, an effort to apply projection, sensing, and real-time data analysis technologies to meet the needs of modern retailers. I worked on an interactive store display that used sensors to detect the focus of interest of shoppers and projected dynamic imagery on and around the displayed products.
As part of this project, I collaborated with Johnny Lee on a system for automatically calibrating projectors using light sensors embedded in the projection surface. By by rapidly projecting a sequence of light patterns and on the sensors, we could find their locations relative to the projector and warp the image to align it properly with the surface, eliminating distortion and keystoning.
