Japanese / English


論文の言語 英語
著者 Kazutaka Takeda, Koichi Kise, Masakazu Iwamura
論文名 Real-Time Document Image Retrieval for a 10 Million Pages Database with a Memory Efficient and Stability Improved LLAH
論文誌名 2011 International Conference on Document Analysis and Recognition
ページ pp.1054-1058
発表場所 Beijing, China
発表の種類 口頭発表
年月 2011年9月
要約 This paper presents a real-time document image retrieval method for a large-scale database with Locally Likely Arrangement Hashing (LLAH). In general, when a database is scaled up, a large amount of memory is required and retrieval accuracy drops due to insufficient discrimination power of features. To solve these problems, we propose three improvements: memory reduction by sampling feature points, improvement of discrimination power by increasing the number of feature dimensions and stabilizing features by reducing redundancy. From the experimental results, we have confirmed that the proposed method realizes 50% memory reduction, and achieves 99.4% accuracy and 38ms processing time for a database of 10 million pages.
DOI 10.1109/ICDAR.2011.213