Word image based latent semantic indexing for conceptual querying in document image databases
Sameek Banerjee, Gaurav Harit, Santanu Chaudhury · Proceedings of the International Conference on Document Analysis and Recognition · 2007
In this paper we present an application of latent semantic analysis (LSA) for indexing and retrieval of document images with text. The query is specified as a set of word images and the documents which best match with the query representation in the the latent semantic space are retrieved. We show through extensive experiments on a large database that use of LSA for document images provides improvements in retrieval precision as is the case with electronic text documents.