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Paper Abstract and Keywords
Presentation 2012-04-27 16:20
Estimating Homography Matrix Using Directed Intersection Point Matching
Kaoru Kawakita, Akira Kubota (Chuo Univ), Hiroshi Sankoh, Sei Naito (KDDI Labs) IE2012-15
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we suggest that method to estimate homography matrix automatically from a image that is important in the synthesis of free viewpoint video in an effort to estimate dynamic moving camera parameters used in broadcasting in soccer scene.
To estimate homography matrix, which need to connect image points to the known court model points of a world coordinate.
Traditionally, because it was to guess the corresponding intersection by limiting the position and orientation of camera's point of view, the use of images taken from various locations was difficult.
Therefore, by the direction of the court to grant the line components that extend from that point at the intersection, the intersection of the court and make a matching model to estimate the support from the component placement and direction of the intersection.
By comparing the placement of the intersection from the vertical and horizontal at the time of matching, will be robust in the direction of shooting, to get the plane projection matrix in far fewer restrictions.
This paper investigates an efficiency of propose method, it is tested by using actual soccer scene images.
This paper investigates an efficiency of propose method, it is tested by
Keyword (in Japanese) (See Japanese page) 
(in English) homography / soccer / moving camera / / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 20, IE2012-15, pp. 81-86, April 2012.
Paper # IE2012-15 
Date of Issue 2012-04-20 (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 2012-04-27 - 2012-04-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Seikei University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Image Processing and Coding, etc. 
Paper Information
Registration To IE 
Conference Code 2012-04-IE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Estimating Homography Matrix Using Directed Intersection Point Matching 
Sub Title (in English)  
Keyword(1) homography  
Keyword(2) soccer  
Keyword(3) moving camera  
1st Author's Name Kaoru Kawakita  
1st Author's Affiliation Chuo University (Chuo Univ)
2nd Author's Name Akira Kubota  
2nd Author's Affiliation Chuo University (Chuo Univ)
3rd Author's Name Hiroshi Sankoh  
3rd Author's Affiliation KDDI R&D Laboratories (KDDI Labs)
4th Author's Name Sei Naito  
4th Author's Affiliation KDDI R&D Laboratories (KDDI Labs)
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Date Time 2012-04-27 16:20:00 
Presentation Time 25 
Registration for IE 
Paper # IEICE-IE2012-15 
Volume (vol) IEICE-112 
Number (no) no.20 
Page pp.81-86 
#Pages IEICE-6 
Date of Issue IEICE-IE-2012-04-20 

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