Suhit Gupta
08-18-2004, 10:00 PM
<div class='os_post_top_link'><a href='http://www.uni-weimar.de/~bimber/research.php' target='_blank'>http://www.uni-weimar.de/~bimber/research.php</a><br /><br /></div><i>"Video projectors will play a major role in future home entertainment and edutainment applications – ranging from movies and television, over computer games, to multimedia presentations. However, we have to give up living space and ambience to set up artificial canvases that have to be as large as the desired image. Smart projectors are able to display correct images onto arbitrary existing screen surfaces, like wallpapered walls or window curtains ... Our smart projectors combine camera feedback with structured light projection to gain information about the screen surface and the environment."</i><br /><br /><img src="http://www.digitalmediathoughts.com/images/research40.jpg" /><br /><br />This technique can be highly useful when you don't have large spaces for projection. Callibrating of this projector is done on a per-pixel level and it can be achieved in real time. And it appears that neither geometry, nor project or camera information needs to be known before hand. It looks like the way it all works is that their smart projectors combine camera feedback with structured light projection to gain information about the screen surface and the environment. The screenshots on the site gives a better idea about results. Most importantly, they have a video (22MB) that really shows off their techniques and results which recommend watching.