Visible Light Communication with LED Traffic Lights Using 2-Dimensional Image Sensor

2006 ◽  
Vol E89-A (3) ◽  
pp. 654-659 ◽  
Author(s):  
H. BINTI CHE WOOK
Keyword(s):  
Visible Light ◽  
Visible Light Communication ◽  
Image Sensor ◽  
Traffic Lights ◽  
Dimensional Image

Researching the Information of Transmission Technology Based on Traffic Lights

2014 ◽  
Vol 644-650 ◽  
pp. 4538-4541
Author(s):  
Qiang Li ◽  
Xin Rui Zhang
Keyword(s):  
Visible Light ◽  
Image Recognition ◽  
Communication Technology ◽  
High Speed ◽  
Visible Light Communication ◽  
Qr Code ◽  
Visible Light Communications ◽  
Traffic Light ◽  
Traffic Lights ◽  
Very High

This design is based on Visible Light Communication Technology, to achieve outdoor visible light communications and image recognition etc. through traffic lights. It will play a role on promoting the utilization of traffic lights. The system uses a LED dot matrix to imitate the traffic light, loading QR Code information on the LED dot matrix and then transporting it in a very high-speed flashing. In receiving terminal, first, webcam OV7670 collects information which from the LED dot matrix, then conveys the picture to FPGA, which is the processor. FPGA will handle the picture by gray scale processing, medium filtering and binary processing at last. Thus, the picture from the LED dot matrix will change to ‘0’ and ‘1’ in binary area. Secondly, as there’s a relationship between LED dot matrix and webcam pixels, we can count how many pixels represent one LED. Finally, we can decode the QR Code based on its own style, and display the final result on the TFT screen.

scholarly journals Using advertisement light-panel and CMOS image sensor with frequency-shift-keying for visible light communication

2018 ◽  
Vol 26 (10) ◽  
pp. 12530 ◽  
Author(s):  
Chi-Wai Chow ◽  
Ruei-Jie Shiu ◽  
Yen-Chun Liu ◽  
Xin-Lan Liao ◽  
Kun-Hsien Lin ◽  
...  
Keyword(s):  
Visible Light ◽  
Frequency Shift ◽  
Visible Light Communication ◽  
Cmos Image Sensor ◽  
Image Sensor ◽  
Frequency Shift Keying ◽  
Shift Keying

Image-sensor-based visible light communication for automotive applications

2014 ◽  
Vol 52 (7) ◽  
pp. 88-97 ◽  
Author(s):  
Takaya Yamazato ◽  
Isamu Takai ◽  
Hiraku Okada ◽  
Toshiaki Fujii ◽  
Tomohiro Yendo ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Communication ◽  
Image Sensor ◽  
Automotive Applications
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