Camera Based Document Image Retrieval with More Time and Memory Efficient LLAH
| 言語 | 英語 |
|---|---|
| 種類 | 国際会議等の予稿 |
| 著者 | Tomohiro Nakai，Koichi Kise，Masakazu Iwamura |
| 論文名 | Camera Based Document Image Retrieval with More Time and Memory Efficient LLAH |
| 論文誌名 | Proc. Second International Workshop on Camera-Based Document Analysis and Recognition (CBDAR2007) |
| ページ | pp.21-28 |
| 発表場所 | Curitiba, Brazil |
| 査読の有無 | 有 |
| 年月 | 2007年9月 |
| 分野 | 文書画像解析, 文書画像検索 |
| キー | Nakai2007_CBDARa (id=994) |
要約
In this paper, we propose improvements of our camera-based document image retrieval method with Locally Likely Arrangement Hashing (LLAH). While LLAH has high accuracy, efficiency and robustness, it requires a large amount of memory. It is also required to speed up the retrieval of LLAH for applications to real-time document image retrieval. For these purposes, we introduce the following two improvements. The first one is reduction of the required amount of memory by removing less important features for indexing from the database and simplifying structure of the database. The second improvement is to reduce exploring alternatives during the retrieval process. From the experimental results, we have confirmed that the proposed improvements realize reduction of the required amount of memory by about 80% and that of processing time by about 60%.
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