On-line document registering and retrieving system for AR annotation overlay
Proceedings of the 1st Augmented Human International Conference
DAS '10 Proceedings of the 9th IAPR International Workshop on Document Analysis Systems
Document area identification for extending books without markers
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
CBDAR'11 Proceedings of the 4th international conference on Camera-Based Document Analysis and Recognition
Pattern Recognition Letters
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We propose a real-time retrieval method for document images in various languages. In this method, queries are images of documents captured by a web-camera. The document images corresponding to the queries are retrieved from the document image database in real time. Since we have already proposed a document image retrieval method for English documents, the proposed method is an extension for retrieval of documents in various languages. In the previous English document image retrieval method, only centroids of word regions are used as feature points. Therefore it cannot be applied to some languages including Japanese and Chinese due to no separation between words and periodic arrangements of characters. In the proposed method, additional features are introduced to realize real-time retrieval for document images in various languages.