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Paper Abstract and Keywords
Presentation 2012-04-20 11:40
Highly Realistic Collaboration System by using 4K Multi JPEG2000 Codecs and 6-Channel Acoustic Echo Canceller
Sunyong Kim, Takayuki Nakachi, Satoru Emura, Tatsuya Fujii, Yoichi Haneda (NTT) CQ2012-16
Abstract (in Japanese) (See Japanese page) 
(in English) We developed a novel tele-collaboration system with low latency and high reliability by using three 4K 60p JPEG2000 video streaming systems and a 6-channel echo canceller. Our system enables to synchronize multiple video streams without one-frame delay and transmit 4K 60p streams with 80 msec of one-way latency, so that users can communicate with one another without unnatural pauses. Furthermore, our system can localize each user's speech at the position where he or she is displayed, by using a novel high-performance multi-channel acoustic echo canceller. We conducted a subjective assesment of our system through confrontational role-playing tasks and found that our system helps to share the feelings and atmosphere with other participants and enhances the cooperation among them.
Keyword (in Japanese) (See Japanese page) 
(in English) remote collaboration / 4K video streaming / acoustic echo canceller / ultra-realistic communication / QoE / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 10, CQ2012-16, pp. 87-92, April 2012.
Paper # CQ2012-16 
Date of Issue 2012-04-12 (CQ) 
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF CQ2012-16

Conference Information
Committee CS CQ  
Conference Date 2012-04-19 - 2012-04-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Ishigakijima 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Service Quality, Cloud, SDN (Software-Defined Network), Contents Delivery, etc 
Paper Information
Registration To CQ 
Conference Code 2012-04-CS-CQ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Highly Realistic Collaboration System by using 4K Multi JPEG2000 Codecs and 6-Channel Acoustic Echo Canceller 
Sub Title (in English)  
Keyword(1) remote collaboration  
Keyword(2) 4K video streaming  
Keyword(3) acoustic echo canceller  
Keyword(4) ultra-realistic communication  
Keyword(5) QoE  
1st Author's Name Sunyong Kim  
1st Author's Affiliation NTT Network Innovation Labs. (NTT)
2nd Author's Name Takayuki Nakachi  
2nd Author's Affiliation NTT Network Innovation Labs. (NTT)
3rd Author's Name Satoru Emura  
3rd Author's Affiliation NTT Cyberspace Labs. (NTT)
4th Author's Name Tatsuya Fujii  
4th Author's Affiliation NTT Network Innovation Labs. (NTT)
5th Author's Name Yoichi Haneda  
5th Author's Affiliation NTT Cyberspace Labs. (NTT)
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Date Time 2012-04-20 11:40:00 
Presentation Time 20 
Registration for CQ 
Paper # IEICE-CQ2012-16 
Volume (vol) IEICE-112 
Number (no) no.10 
Page pp.87-92 
#Pages IEICE-6 
Date of Issue IEICE-CQ-2012-04-12 

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