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2011 International Conference on Document Analysis and Recognition Retrieval of Envelope Images Using Graph Matching

By Li Liu and Ching Y. Suen


Abstract—A graph matching approach is proposed to retrieve envelope images from a large image database. First, the graph representation of an envelop image is generated based on the image segmentation results, in which each node corresponds to one segmented region. The attributes of nodes and edges in the graph are described by characteristics of the envelope image. Second, a minimum weighted bipartite graph matching method is employed to compute the distance between two graphs. Finally, the whole retrieval system including two principal stages is presented, namely, rough matching and fine matching. The experiments on a database of envelope images captured from real-life mailpieces demonstrate that the proposed method achieves promising results. Keywords-Envelope image retrieval; graph matching; graph representation; I

Year: 2013
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