High-speed-camera image processing based LED traffic light detection for road-to-vehicle visible light communication

2010 ◽  
Author(s):  
H. Chinthaka N. Premachandra ◽  
Tomohiro Yendo ◽  
Mehrdad Panahpour Tehrani ◽  
Takaya Yamazato ◽  
Hiraku Okada ◽  
...  
Keyword(s):  
Image Processing ◽  
Visible Light ◽  
High Speed ◽  
Visible Light Communication ◽  
High Speed Camera ◽  
Traffic Light ◽  
Light Detection ◽  
Camera Image

LED Traffic Light Detection Using High-speed-camera Image Processing for Visible Light Communication

2011 ◽  
Vol 65 (3) ◽  
pp. 354-360 ◽  
Author(s):  
H. Chinthaka N. Premachandra ◽  
Tomohiro Yendo ◽  
Mehrdad Panahpour Tehrani ◽  
Takaya Yamazato ◽  
Hiraku Okada ◽  
...  
Keyword(s):  
Image Processing ◽  
Visible Light ◽  
High Speed ◽  
Visible Light Communication ◽  
High Speed Camera ◽  
Traffic Light ◽  
Light Detection ◽  
Camera Image

Detection of LED traffic light by image processing for visible light communication system

2009 ◽  
Author(s):  
H. Chinthaka ◽  
N. Premachandra ◽  
Tomohiro Yendo ◽  
Takaya Yamasato ◽  
Toshiaki Fujii ◽  
...  
Keyword(s):  
Image Processing ◽  
Visible Light ◽  
Communication System ◽  
Visible Light Communication ◽  
Traffic Light

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.

Outdoor Road-to-Vehicle Visible Light Communication Using On-Vehicle High-Speed Camera

2014 ◽  
Vol 13 (1) ◽  
pp. 28-36 ◽  
Author(s):  
Chinthaka Premachandra ◽  
Tomohiro Yendo ◽  
Mehrdad Panahpour Tehrani ◽  
Takaya Yamazato ◽  
Hiraku Okada ◽  
...  
Keyword(s):  
Visible Light ◽  
High Speed ◽  
Visible Light Communication ◽  
High Speed Camera
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