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Paper Abstract and Keywords
Presentation 2016-07-01 15:15
Local Motion Removal based Dynamic Camera Calibration for Synthesizing Free Viewpoint Soccer Video
Qiang Yao, Keisuke Nonaka, Hiroshi Sankoh, Sei Naito (KDDI Labs) IE2016-44
Abstract (in Japanese) (See Japanese page) 
(in English) Accurate camera parameter is regarded as a key factor in generating free viewpoint video with a high quality. Video registration is the most popular method for moving camera calibration, and it is composed of feature points detection and matching, and homography matrix estimation for camera calibration. However, the main problem in video registration-based moving camera calibration is that the calibration accuracy is very low if the detected feature points are from moving objects. In this paper, we propose a robust camera calibration method for moving camera. The proposed method tracks the feature points along several video frames to construct a trajectory matrix of feature points, and the constructed trajectory matrix is decomposed into a low-rank matrix representing global camera motion and a sparse matrix representing local motion. Therefore, according to such decomposition, local motions of dynamic feature points are removed. Experimental results show that the proposed method achieves more accurate calibration result in terms of both objective and subjective evaluations.
Keyword (in Japanese) (See Japanese page) 
(in English) Free Viewpoint Soccer Video / Moving Camera Calibration / Homography Matrix / Low Rank Decomposition / / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 119, IE2016-44, pp. 49-53, July 2016.
Paper # IE2016-44 
Date of Issue 2016-06-24 (IE) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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)
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Conference Information
Committee IE  
Conference Date 2016-07-01 - 2016-07-01 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To IE 
Conference Code 2016-07-IE 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Local Motion Removal based Dynamic Camera Calibration for Synthesizing Free Viewpoint Soccer Video 
Sub Title (in English)  
Keyword(1) Free Viewpoint Soccer Video  
Keyword(2) Moving Camera Calibration  
Keyword(3) Homography Matrix  
Keyword(4) Low Rank Decomposition  
1st Author's Name Qiang Yao  
1st Author's Affiliation KDDI R&D Laboratories, Inc. (KDDI Labs)
2nd Author's Name Keisuke Nonaka  
2nd Author's Affiliation KDDI R&D Laboratories, Inc. (KDDI Labs)
3rd Author's Name Hiroshi Sankoh  
3rd Author's Affiliation KDDI R&D Laboratories, Inc. (KDDI Labs)
4th Author's Name Sei Naito  
4th Author's Affiliation KDDI R&D Laboratories, Inc. (KDDI Labs)
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Date Time 2016-07-01 15:15:00 
Presentation Time 30 
Registration for IE 
Paper # IEICE-IE2016-44 
Volume (vol) IEICE-116 
Number (no) no.119 
Page pp.49-53 
#Pages IEICE-5 
Date of Issue IEICE-IE-2016-06-24 

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