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Paper Abstract and Keywords
Presentation 2011-12-16 15:15
Rotation and scale-invariant local feature based on co-occurrence of edge gradient and its application to general object recognition
Yoshihiko Kawai, Mahito Fujii (NHK) CS2011-78 IE2011-102
Abstract (in Japanese) (See Japanese page) 
(in English) A bag-of-visual-words method based on a frequency histogram of local features is widely used for detecting general object from video data. However, the conventional method cannot take into account the relationship between the local features and it ignores positional relation between subregions. This paper proposes a rotation and scale-invariant local feature based on co-occurrence of edge gradient. The proposed method determines the scale of the feature point based on the difference of Gaussian and determines the dominant direction based on the frequency of edge directions around the feature point. The feature descriptor is then calculated based on the co-occurrence matrix between weighted edge-direction histograms in the surrounding area. In addition, this paper describes the method of utilizing the proposed local feature for the general object recognition method. The experiment on video data about 400 hours long was performed to verify the effectiveness of the proposed method.
Keyword (in Japanese) (See Japanese page) 
(in English) Semantic contents analysis / general object recognition / bag-of-visual-words / co-occurrence / rotation and scale invariant / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 349, IE2011-102, pp. 139-144, Dec. 2011.
Paper # IE2011-102 
Date of Issue 2011-12-08 (CS, IE) 
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 CS2011-78 IE2011-102

Conference Information
Committee CS IPSJ-AVM ITE-BCT IE  
Conference Date 2011-12-15 - 2011-12-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagoya Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Image Coding, Streaming, etc. 
Paper Information
Registration To IE 
Conference Code 2011-12-CS-AVM-BCT-IE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Rotation and scale-invariant local feature based on co-occurrence of edge gradient and its application to general object recognition 
Sub Title (in English)  
Keyword(1) Semantic contents analysis  
Keyword(2) general object recognition  
Keyword(3) bag-of-visual-words  
Keyword(4) co-occurrence  
Keyword(5) rotation and scale invariant  
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1st Author's Name Yoshihiko Kawai  
1st Author's Affiliation Japan broadcasting corporation (NHK)
2nd Author's Name Mahito Fujii  
2nd Author's Affiliation Japan broadcasting corporation (NHK)
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Speaker Author-1 
Date Time 2011-12-16 15:15:00 
Presentation Time 25 minutes 
Registration for IE 
Paper # CS2011-78, IE2011-102 
Volume (vol) vol.111 
Number (no) no.348(CS), no.349(IE) 
Page pp.139-144 
#Pages 6 
Date of Issue 2011-12-08 (CS, IE) 

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