| Presentation | 2021-11-25 [Encouragement Talk] Overhead Reduction for High-Quality Graph-Based Point Cloud Delivery Soushi Ueno, Takuya Fujihashi, Toshiaki Koike-Akino, Takashi Watanabe, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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) |
| Keyword(in English) | Point Cloud / Communication Overhead Reduction / Graph Signal Processing / Givens Rotation / Non-Uniform Quantization |
| Paper # | NS2021-85 |
| Date of Issue | 2021-11-18 (NS) |
| Conference Information | |
| Committee | CQ / ICM / NS |
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| Conference Date | 2021/11/25(2days) |
| 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. |
| Chair | Jun Okamoto(NTT) / Kazuhiko Kinoshita(Tokushima Univ.) / Akihiro Nakao(Univ. of Tokyo) |
| Vice Chair | Takefumi Hiraguri(Nippon Inst. of Tech.) / Gou Hasegawa(Tohoku Univ.) / Haruo Ooishi(NTT) / Eiji Takahashi(NEC) / Tetsuya Oishi(NTT) |
| Secretary | Takefumi Hiraguri(NTT) / Gou Hasegawa(Ritsumeikan Univ.) / Haruo Ooishi(Bosco) / Eiji Takahashi(Fujitsu) / Tetsuya Oishi(NTT) |
| Assistant | Yoshiaki Nishikawa(NEC) / Ryoichi Kataoka(KDDI Research) / Kimiko Kawashima(NTT) / Yoshifumi Kato(NTT) / Kotaro Mihara(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Communication Quality / Technical Committee on Information and Communication Management / Technical Committee on Network Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Encouragement Talk] 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 |
| 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.) |
| Date | 2021-11-25 |
| Paper # | NS2021-85 |
| Volume (vol) | vol.121 |
| Number (no) | NS-262 |
| Page | pp.pp.7-12(NS), |
| #Pages | 6 |
| Date of Issue | 2021-11-18 (NS) |