RM-002 LED Traffic Light Detection Using a High-speed-camera for a Road-to-vehicle Visible Light Communication System

情報処理学会

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A new visible light road-to-vehicle communication system at intersections is proposed for the area of ITS. In this system, the communication between a vehicle and an LED traffic light is conducted using an LED traffic light as a transmitter, and an on-vehicle high-speed camera as a receiver. The LEDs in the transmitter emit light in high frequency and those emitting LEDs are captured by the high-speed camera for making communication. Here, the luminance value of LEDs in the transmitter should be captured in consecutive frames to achieve communication. For this purpose, finding the transmitter and tracking it in consecutive frames by processing the images from the high-speed camera is important. We propose new effective algorithms for finding and tracking the transmitter, which result in a increased communication speed, compared to the previous methods. Experiments using appropriate images showed the effectiveness of the proposals.

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