Paper Abstract and Keywords |
Presentation |
2021-06-25 10:45
Overhead Reduction for Point Cloud Wireless Delivery using Graph Signal Processing Soushi Ueno, Takuya Fujihashi (Osaka Univ.), Toshiaki Koike-Akino (MERL), Takashi Watanabe (Osaka Univ.) NS2021-29 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Graph-based compression can compact the signal energy of three-dimensional (3D) point cloud and realize high quality 3D point cloud delivery over wireless channels. However, it requires significant communication overhead for decoding operation and such a large overhead. We propose a novel scheme for wireless point cloud delivery to significantly reduce the amount of communication overhead while maintaining high reconstruction quality. For this purpose, our scheme integrates two methods: Givens rotation and non-uniform quantization. The Givens rotation transforms the GFT basis matrix into angle parameters to keep unitarity of the matrix after the compression. The angle parameters are then non-uniformly quantized into the limited number of bits based on an empirical power cumulative distribution function (CDF). Evaluation results show the proposed scheme achieves a significant overhead reduction compared with the existing graph-based point cloud delivery schemes. For example, the proposed scheme achieves 28.6% overhead reduction and 2dB gain compared with the conventional point cloud delivery scheme. |
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. 74, NS2021-29, pp. 21-26, June 2021. |
Paper # |
NS2021-29 |
Date of Issue |
2021-06-17 (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 |
NS2021-29 |
Conference Information |
Committee |
PN NS OCS |
Conference Date |
2021-06-24 - 2021-06-25 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Online |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
|
Paper Information |
Registration To |
NS |
Conference Code |
2021-06-PN-NS-OCS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Overhead Reduction for Point Cloud Wireless Delivery using Graph Signal Processing |
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) |
|
Keyword(8) |
|
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.) |
5th Author's Name |
|
5th Author's Affiliation |
() |
6th Author's Name |
|
6th Author's Affiliation |
() |
7th Author's Name |
|
7th Author's Affiliation |
() |
8th Author's Name |
|
8th Author's Affiliation |
() |
9th Author's Name |
|
9th Author's Affiliation |
() |
10th Author's Name |
|
10th Author's Affiliation |
() |
11th Author's Name |
|
11th Author's Affiliation |
() |
12th Author's Name |
|
12th Author's Affiliation |
() |
13th Author's Name |
|
13th Author's Affiliation |
() |
14th Author's Name |
|
14th Author's Affiliation |
() |
15th Author's Name |
|
15th Author's Affiliation |
() |
16th Author's Name |
|
16th Author's Affiliation |
() |
17th Author's Name |
|
17th Author's Affiliation |
() |
18th Author's Name |
|
18th Author's Affiliation |
() |
19th Author's Name |
|
19th Author's Affiliation |
() |
20th Author's Name |
|
20th Author's Affiliation |
() |
Speaker |
Author-1 |
Date Time |
2021-06-25 10:45:00 |
Presentation Time |
25 minutes |
Registration for |
NS |
Paper # |
NS2021-29 |
Volume (vol) |
vol.121 |
Number (no) |
no.74 |
Page |
pp.21-26 |
#Pages |
6 |
Date of Issue |
2021-06-17 (NS) |
|