Presentation 2022-11-07
[Technology Exhibit] An Implementation of Propeller-type Rotary LED Transmitter for Event Camera-based Image Sensor Communication
Zhengqiang Tang, Takaya Yamazato, Shintaro Arai,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) With the spread of LED technology, the development of image sensor communication (ISC) is rapidly accelerating. In ISC, a camera captures the blinking of LEDs, which are transmitted signals, and demodulates the information from the captured images. ISC simultaneously realizes various functions such as illumination and visual information transmission along with information transmission. This study focuses on ISCs that use an event camera as the receiver. Since an event camera detects and outputs changes in LED light in microseconds, it can achieve faster and lower latency communication compared to ISC using a commercial camera, which has a slower shooting speed. However, if the same signal is continuously transmitted, the event camera does not output any information because the LED light does not change. To solve this problem, this study uses a propeller-type rotary LED transmitter. The transmitter transmits data using the afterimage created by rotating the LED light. This allows the afterimage of the light to be output as an event because the LEDs on the image sensor move continuously. The output events are then projected onto the time axis and the data is demodulated. In this paper, the operation of the proposed system is verified through experiments, and the demodulation process is performed in an offline environment to evaluate the communication quality of this system.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) image sensor communication (ISC) / propeller-type rotary LED transmitter / event camera
Paper # SR2022-55
Date of Issue 2022-10-31 (SR)

Conference Information
Committee SR
Conference Date 2022/11/7(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Fukuoka University
Topics (in Japanese) (See Japanese page)
Topics (in English) Software Defined Radio, Cognitive Radio, Spectrum Sharing, etc.
Chair Suguru Kameda(Hiroshima Univ.)
Vice Chair Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) / Kazuto Yano(ATR)
Secretary Osamu Takyu(Mie Univ.) / Kentaro Ishidu(Tokai Univ.) / Kazuto Yano(NTT)
Assistant Taichi Ohtsuji(NEC) / WANG Xiaoyan(Ibaraki Univ.) / Akemi Tanaka(MathWorks) / Katsuya Suto(Univ. of Electro-Comm)

Paper Information
Registration To Technical Committee on Smart Radio
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Technology Exhibit] An Implementation of Propeller-type Rotary LED Transmitter for Event Camera-based Image Sensor Communication
Sub Title (in English)
Keyword(1) image sensor communication (ISC)
Keyword(2) propeller-type rotary LED transmitter
Keyword(3) event camera
Keyword(4)
1st Author's Name Zhengqiang Tang
1st Author's Affiliation Nagoya University(Nagoya Univ.)
2nd Author's Name Takaya Yamazato
2nd Author's Affiliation Nagoya University(Nagoya Univ.)
3rd Author's Name Shintaro Arai
3rd Author's Affiliation Okayama University of Science(Okayama Univ. of Sci.)
Date 2022-11-07
Paper # SR2022-55
Volume (vol) vol.122
Number (no) SR-243
Page pp.pp.52-57(SR),
#Pages 6
Date of Issue 2022-10-31 (SR)