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Paper Abstract and Keywords
Presentation 2007-09-27 10:00
Statistical Segmentation and Normalization of Trajectories of Finger-Tip Movements for a Gesture Interface
Kazuhiro Morimoto, Chiyomi Miyajima, Norihide Kitaoka (Nagoya Univ.), Katunobu Itou (Hosei Univ.), Kazuya Takeda (Nagoya Univ.) SIP2007-83 SIS2007-19 SP2007-45
Abstract (in Japanese) (See Japanese page) 
(in English) This paper presents a virtual push-button interface created by drawing a shape or line in the air with a fingertip. As an example of such a gesture-based interface, we developed a four-button interface for entering multi-digit numbers by making pushing gestures within an invisible 2x2 button matrix inside a square drawn by the user. Trajectories of the fingertip movements entering randomly chosen multi-digit numbers are captured with a 3D position sensor mounted on the tip of the forefinger. We propose a statistical segmentation method for the trajectory of movements and a normalization method, associated with direction and size of gestures. The performance of the proposed method is evaluated in HMM-based gestures recognition. Recognition rate of 60.0% was improved to 91.3% after applying the normalization method.
Keyword (in Japanese) (See Japanese page) 
(in English) Gesture interface / 3D position sensor / Principal component analysis / Affine transformation / Hidden Markov model / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 234, SIP2007-83, pp. 1-6, Sept. 2007.
Paper # SIP2007-83 
Date of Issue 2007-09-20 (SIP, SIS, SP) 
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 SIP2007-83 SIS2007-19 SP2007-45

Conference Information
Committee SIP SIS SP  
Conference Date 2007-09-27 - 2007-09-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagoya Inst. of Tech. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Signal Processing, Intelligent Multimedia Systems, etc. 
Paper Information
Registration To SIP 
Conference Code 2007-09-SIP-SIS-SP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Statistical Segmentation and Normalization of Trajectories of Finger-Tip Movements for a Gesture Interface 
Sub Title (in English)  
Keyword(1) Gesture interface  
Keyword(2) 3D position sensor  
Keyword(3) Principal component analysis  
Keyword(4) Affine transformation  
Keyword(5) Hidden Markov model  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Kazuhiro Morimoto  
1st Author's Affiliation Nagoya University (Nagoya Univ.)
2nd Author's Name Chiyomi Miyajima  
2nd Author's Affiliation Nagoya University (Nagoya Univ.)
3rd Author's Name Norihide Kitaoka  
3rd Author's Affiliation Nagoya University (Nagoya Univ.)
4th Author's Name Katunobu Itou  
4th Author's Affiliation Hosei University (Hosei Univ.)
5th Author's Name Kazuya Takeda  
5th Author's Affiliation Nagoya University (Nagoya Univ.)
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Speaker Author-1 
Date Time 2007-09-27 10:00:00 
Presentation Time 25 minutes 
Registration for SIP 
Paper # SIP2007-83, SIS2007-19, SP2007-45 
Volume (vol) vol.107 
Number (no) no.234(SIP), no.236(SIS), no.238(SP) 
Page pp.1-6 
#Pages 6 
Date of Issue 2007-09-20 (SIP, SIS, SP) 

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