| Paper Abstract and Keywords |
| Presentation |
2005-03-18 14:30
Document Image Retrieval Based on Cross-Ratio and Hashing
Tomohiro Nakai, Koichi Kise, Masakazu Iwamura, Keinosuke Matsumoto (Osaka Pref. Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
In this report, we propose a new method of document image retrieval using digital cameras. The proposed method is to retrieve from document images which include parts or the whole of document images acquired by a digital camera. For this purpose, it is required to solve the problem of ``perspective distortion'' of images, as well as to establish a way for matching parts of document images flexibly. These are achieved based on the following characteristic points of the proposed method: (1) Indexing of document images using the projective invariant called the ``cross-ratio'', (2) Voting with hashes whose indices are defined by the cross-ratios. From experimental results using digital cameras with high resolution and a camera phone, we demonstrate the effectiveness of the proposed method. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Document image retrieval / Digital camera / Cross-ratio / Hashing / Voting / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 104, no. 742, PRMU2004-249, pp. 103-108, March 2005. |
| Paper # |
PRMU2004-249 |
| Date of Issue |
2005-03-11 (TL, PRMU) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
PRMU TL |
| Conference Date |
2005-03-17 - 2005-03-18 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
|
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
|
| Paper Information |
| Registration To |
PRMU |
| Conference Code |
2005-03-PRMU-TL |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Document Image Retrieval Based on Cross-Ratio and Hashing |
| Sub Title (in English) |
|
| Keyword(1) |
Document image retrieval |
| Keyword(2) |
Digital camera |
| Keyword(3) |
Cross-ratio |
| Keyword(4) |
Hashing |
| Keyword(5) |
Voting |
| Keyword(6) |
|
| Keyword(7) |
|
| Keyword(8) |
|
| 1st Author's Name |
Tomohiro Nakai |
| 1st Author's Affiliation |
Osaka Prefecture University (Osaka Pref. Univ.) |
| 2nd Author's Name |
Koichi Kise |
| 2nd Author's Affiliation |
Osaka Prefecture University (Osaka Pref. Univ.) |
| 3rd Author's Name |
Masakazu Iwamura |
| 3rd Author's Affiliation |
Osaka Prefecture University (Osaka Pref. Univ.) |
| 4th Author's Name |
Keinosuke Matsumoto |
| 4th Author's Affiliation |
Osaka Prefecture University (Osaka Pref. Univ.) |
| 5th Author's Name |
|
| 5th Author's Affiliation |
() |
| 6th Author's Name |
|
| 6th Author's Affiliation |
() |
| 7th Author's Name |
|
| 7th Author's Affiliation |
() |
| 8th Author's Name |
|
| 8th Author's Affiliation |
() |
| 9th Author's Name |
|
| 9th Author's Affiliation |
() |
| 10th Author's Name |
|
| 10th Author's Affiliation |
() |
| 11th Author's Name |
|
| 11th Author's Affiliation |
() |
| 12th Author's Name |
|
| 12th Author's Affiliation |
() |
| 13th Author's Name |
|
| 13th Author's Affiliation |
() |
| 14th Author's Name |
|
| 14th Author's Affiliation |
() |
| 15th Author's Name |
|
| 15th Author's Affiliation |
() |
| 16th Author's Name |
|
| 16th Author's Affiliation |
() |
| 17th Author's Name |
|
| 17th Author's Affiliation |
() |
| 18th Author's Name |
|
| 18th Author's Affiliation |
() |
| 19th Author's Name |
|
| 19th Author's Affiliation |
() |
| 20th Author's Name |
|
| 20th Author's Affiliation |
() |
| Speaker |
Author-1 |
| Date Time |
2005-03-18 14:30:00 |
| Presentation Time |
30 minutes |
| Registration for |
PRMU |
| Paper # |
TL2004-81, PRMU2004-249 |
| Volume (vol) |
vol.104 |
| Number (no) |
no.740(TL), no.742(PRMU) |
| Page |
pp.103-108 |
| #Pages |
6 |
| Date of Issue |
2005-03-11 (TL, PRMU) |
|