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| Presentation | 2011-12-15 09:30 A study on spatio-temporal CoHOG features for recognition of generic objects in video Shogo Nakamura, Daisuke Deguchi (Nagoya Univ.), Tomokazu Takahashi (Gifu Shotoku Gakuen Univ.), Ichiro Ide, Hiroshi Murase (Nagoya Univ.)  PRMU2011-124 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Recognizing objects in videos is one of the important technologies to search a large amount of videos efficiently on the Web. Recently, generic object recognition has been actively studied for still images, but almost not for videos. As for the generic object recognition in a video, it is important to use both the shape features and the motion features obtained from multiple frames in the video efficiently. In this paper, we propose spatio-temporal CoHOG (Co-occurrence Histograms of Oriented Gradients) features. This is an extension of CoHOG features that provide a high performance for pedestrian detection and others. The spatio-temporal CoHOG features are co-occurrence histograms of oriented spatio-temporal gradients in local regions in a video. In the recognition, a BoF (Bag of Features) representation and a kernel SVM are employed. We conducted an experiment on 1,000 videos including 10 categories collected from the Web. The experimental results showed the effectiveness of the spatio-temporal CoHOG features compared with conventional optical flow features and SIFT features. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Generic object recognition / Video / Spatio-temporal CoHOG features / BoF representation / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 353, PRMU2011-124, pp. 1-6, Dec. 2011. | |
| Paper # | PRMU2011-124 | |
| Date of Issue | 2011-12-08 (PRMU) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | PRMU2011-124 |
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| Conference Information | |
| Committee | PRMU FM |
| Conference Date | 2011-12-15 - 2011-12-16 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hamamatsu Campus, Shizuoka Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | PRMU |
| Conference Code | 2011-12-PRMU-FM |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study on spatio-temporal CoHOG features for recognition of generic objects in video |
| Sub Title (in English) | |
| Keyword(1) | Generic object recognition |
| Keyword(2) | Video |
| Keyword(3) | Spatio-temporal CoHOG features |
| Keyword(4) | BoF representation |
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| 1st Author's Name | Shogo Nakamura |
| 1st Author's Affiliation | Nagoya University (Nagoya Univ.) |
| 2nd Author's Name | Daisuke Deguchi |
| 2nd Author's Affiliation | Nagoya University (Nagoya Univ.) |
| 3rd Author's Name | Tomokazu Takahashi |
| 3rd Author's Affiliation | Gifu Shotoku Gakuen University (Gifu Shotoku Gakuen Univ.) |
| 4th Author's Name | Ichiro Ide |
| 4th Author's Affiliation | Nagoya University (Nagoya Univ.) |
| 5th Author's Name | Hiroshi Murase |
| 5th Author's Affiliation | Nagoya University (Nagoya Univ.) |
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| Speaker | Author-1 |
| Date Time | 2011-12-15 09:30:00 |
| Presentation Time | 30 minutes |
| Registration for | PRMU |
| Paper # | PRMU2011-124 |
| Volume (vol) | vol.111 |
| Number (no) | no.353 |
| Page | pp.1-6 |
| #Pages | 6 |
| Date of Issue | 2011-12-08 (PRMU) |
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