Sciweavers

Share
IJDAR
2008

Mobile Retriever: access to digital documents from their physical source

9 years 1 months ago
Mobile Retriever: access to digital documents from their physical source
In this paper we describe an image based document retrieval system which runs on camera enabled mobile devices. "Mobile Retriever" aims to seamlessly link physical and digital documents by allowing users to snap a picture of the text of a document and retrieve its electronic version from a database. Experiments show that for a database of 100,093 pages, the correct document can be retrieved in less than 4 seconds at a success rate over 95%. Our system extracts token pairs from the text, to efficiently index and retrieve candidate pages using only a small portion of the image. We use token triplets that define the orientation of three corresponding tokens to effectively prune the false positives and identify the correct page to retrieve. We stress the importance of geometrical relationship between feature points and show its effectiveness in our camera based image retrieval system. Keywords Document retrieval
Xu Liu, David S. Doermann
Added 12 Dec 2010
Updated 12 Dec 2010
Type Journal
Year 2008
Where IJDAR
Authors Xu Liu, David S. Doermann
Comments (0)
books