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| Presentation | 2019-01-16 13:00 [Encouragement Talk] IoTorch: Intuitively Obtaining Information from Devices in Visible Region by LED-to-Camera Communication Yuki Hokazono, Koichi Hasegawa, Yoshiaki Narusue (Tokyo Univ.), Aoi Koizuka (KDDI Research, Inc.), Makoto Suzuki (Sonas, Inc.), Hiroyuki Morikawa (Tokyo Univ.)  MoNA2018-61 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Towards ``intuitive'' communication, which allows a user to directly obtain information from a device in the user interest, we are developing IoTorch, a flexible LED-to-camera communication for smartphones. IoTorch has two communication modes: 1) a long-range mode that supports several 10 bps of transmission even when an LED appears only few pixels to a smartphone, and 2) a short-range mode that supports several 1000~bps when an LED occupies an entire screen of a smartphone. In a long-range mode, IoTorch can receive the information regardless of the time at which the camera is started by adding information to the differential color shift between consecutive frames. On the other hand, in a short-range mode, IoTorch realizes fast and reliable communication by a minimum-repetition one-way transmission method considering characteristics of a rolling shutter system. By combining these modes, the user can specify a desired information source through the screen of the smartphone from long-range, and can obtain detailed information by approaching the device. The experimental results using multiple smartphone models show that IoTorch can be used regardless of the models. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | LED-to-camera communication for smartphones / rolling shutter / visible-light communication / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 118, no. 389, MoNA2018-61, pp. 25-25, Jan. 2019. | |
| Paper # | MoNA2018-61 | |
| Date of Issue | 2019-01-09 (MoNA) | |
| 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 | MoNA2018-61 |
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| Conference Information | |
| Committee | MoNA |
| Conference Date | 2019-01-16 - 2019-01-17 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | T. B. D. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | MoNA |
| Conference Code | 2019-01-MoNA |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | IoTorch: Intuitively Obtaining Information from Devices in Visible Region by LED-to-Camera Communication |
| Sub Title (in English) | |
| Keyword(1) | LED-to-camera communication for smartphones |
| Keyword(2) | rolling shutter |
| Keyword(3) | visible-light communication |
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| 1st Author's Name | Yuki Hokazono |
| 1st Author's Affiliation | Graduate School of Engineering, The University of Tokyo (Tokyo Univ.) |
| 2nd Author's Name | Koichi Hasegawa |
| 2nd Author's Affiliation | Graduate School of Engineering, The University of Tokyo (Tokyo Univ.) |
| 3rd Author's Name | Yoshiaki Narusue |
| 3rd Author's Affiliation | Graduate School of Engineering, The University of Tokyo (Tokyo Univ.) |
| 4th Author's Name | Aoi Koizuka |
| 4th Author's Affiliation | KDDI Research, Inc. (KDDI Research, Inc.) |
| 5th Author's Name | Makoto Suzuki |
| 5th Author's Affiliation | Sonas, Inc. (Sonas, Inc.) |
| 6th Author's Name | Hiroyuki Morikawa |
| 6th Author's Affiliation | Graduate School of Engineering, The University of Tokyo (Tokyo Univ.) |
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| Speaker | Author-1 |
| Date Time | 2019-01-16 13:00:00 |
| Presentation Time | 25 minutes |
| Registration for | MoNA |
| Paper # | MoNA2018-61 |
| Volume (vol) | vol.118 |
| Number (no) | no.389 |
| Page | p.25 |
| #Pages | 1 |
| Date of Issue | 2019-01-09 (MoNA) |
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