IDiexis: Mobile image-based search on world wide web-a picture is worth a thousand keywords

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.