%0 Journal Article %J Proc. of Mobisys %D 2006 %T IDiexis: Mobile image-based search on world wide web-a picture is worth a thousand keywords %A Tollmar,K. %A Tom Yeh %A Darrell,T. %X Images of objects as queries is a new approach to searchfor information on the web. Image-based information retrieval goes beyond only matching images, as information in other modalities also can be extracted from data collections using image search. We demonstrate a new system that uses images to search for web-based information. We introduce a point-by-photograph paradigm, where users can specify an object simply by taking pictures. Our technique uses content-based image retrieval methods to search the web or other databases for matching images and their source pages to find relevant location-based information. We have developed a prototype on a camera phone and conducted user studies to demonstrate the efficacy of our approach compared to other alternatives. %B Proc. of Mobisys %8 2006/// %G eng