Tom Yeh, Konrad Tollmar, Trevor Darrell
2004 Extended abstracts of the 2004 conference on Human factors and computing systems - CHI '04  
In this paper we describe an image-based approach to finding location-based information from camera-equipped mobile devices. We introduce a point-by-photograph paradigm, where users can specify a location 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. In contrast to conventional approaches to location detection, our method can refer to
more » ... distant locations and does not require any physical infrastructure beyond mobile internet service. We have developed a prototype on a camera phone and conducted user studies to demonstrate the efficacy of our approach compared to a map-based alternative.
doi:10.1145/985921.985933 dblp:conf/chi/YehTD04 fatcat:hppnrgdzrreqbl4cdxannniree