Outdoor visible light communication LED detection method based on edge detection

• Main Authors: GUAN WEIPENG, HUANG MOUXIAO, CHENG YIBIN, KANG YICHEN, WEN SHANGSHENG, CHEN ZHOUNAN, CHEN SHIHUAN
• Format: Patent
• Language: Chinese; English
• Published: 18.12.2018
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention discloses an outdoor visible light communication LED detection method based on edge detection, which takes an LED traffic light as a sending end and a high-speed camera on a vehicle as areceiving end to realize communication between the vehicle and the LED traffic light. The LED traffic light on the transmitting side transmits light at a frequency of 500 Hz, and the LED traffic light is set to a sufficient brightness value to identify successive frames of the camera image, and is used for communication after being identified. In order to realize the communication, the first stepis to identify the sender, and then when the vehicle is moving, the continuous frame image captured from the camera is processed by image processing to realize the tracking of the sender. Therefore,the LED detection method based on the outdoor visible light communication of the edge detection disclosed by the invention realizes the tracking of the identified transmitting end in a continuous frame, and has a broad utilizat