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Paper Abstract and Keywords
Presentation 2021-11-25 11:05
[Encouragement Talk] Overhead Reduction for High-Quality Graph-Based Point Cloud Delivery
Soushi Ueno, Takuya Fujihashi (Osaka Univ.), Toshiaki Koike-Akino (MERL), Takashi Watanabe (Osaka Univ.) NS2021-85
Abstract (in Japanese) (See Japanese page) 
(in English) The point cloud expresses three-dimensional (3D) information by using many points on 3D space. It is important to be able to express 3D information more accurately in a limited band when the sender transmit a point cloud through a wireless channel. The method using graph signal processing can effectively compress multiple points scattered on 3D space, however, it requires communication overhead for its conversion. In this paper, we propose a new point cloud transmission scheme to reduce communication overhead while maintaining 3D content quality. More concretely, the amount of data required for transmission of the basis matrix is reduced by combining Givens rotation and non-uniform quantization, and the obtained angle parameters are transmitted to the receivers in order. Performance evaluation results using a point cloud reveal that the proposed scheme smoothly improves the quality for wireless channel and reduces the communication overhead by up to 40% compared to the conventional scheme using uniform quantization.
Keyword (in Japanese) (See Japanese page) 
(in English) Point Cloud / Communication Overhead Reduction / Graph Signal Processing / Givens Rotation / Non-Uniform Quantization / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 262, NS2021-85, pp. 7-12, Nov. 2021.
Paper # NS2021-85 
Date of Issue 2021-11-18 (NS) 
ISSN 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 NS2021-85

Conference Information
Committee CQ ICM NS NV  
Conference Date 2021-11-25 - 2021-11-26 
Place (in Japanese) (See Japanese page) 
Place (in English) JR Hakata Stn. Hakata EkiHigashi Rental Room 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Network quality, Network measurement/management, Network virtualization, Network service, Blockchain, Security, Network intelligence/AI, etc. 
Paper Information
Registration To NS 
Conference Code 2021-11-CQ-ICM-NS-NV 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Overhead Reduction for High-Quality Graph-Based Point Cloud Delivery 
Sub Title (in English)  
Keyword(1) Point Cloud  
Keyword(2) Communication Overhead Reduction  
Keyword(3) Graph Signal Processing  
Keyword(4) Givens Rotation  
Keyword(5) Non-Uniform Quantization  
Keyword(6)  
Keyword(7)  
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1st Author's Name Soushi Ueno  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Takuya Fujihashi  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Toshiaki Koike-Akino  
3rd Author's Affiliation Mitsubishi Electric Research Laboratories (MERL)
4th Author's Name Takashi Watanabe  
4th Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2021-11-25 11:05:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2021-85 
Volume (vol) vol.121 
Number (no) no.262 
Page pp.7-12 
#Pages 6 
Date of Issue 2021-11-18 (NS) 

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