TY  - JOUR
PY  - 2020//
TI  - Real-time traffic light detection with frequency patterns using a high-speed camera
JO  - Sensors (Basel)
A1  - Yabuuchi, Kento
A1  - Hirano, Masahiro
A1  - Senoo, Taku
A1  - Kishi, Norimasa
A1  - Ishikawa, Masatoshi
SP  - e4035
EP  - e4035
VL  - 20
IS  - 14
N2  - LEDs are widely employed as traffic lights. Because most LED traffic lights are driven by alternative power, they blink at high frequencies, even at twice their frequencies. We propose a method to detect a traffic light from images captured by a high-speed camera that can recognize a blinking traffic light. This technique is robust under various illuminations because it can detect traffic lights by extracting information from the blinking pixels at a specific frequency. The method is composed of six modules, which includes a band-pass filter and a Kalman filter. All the modules run simultaneously to achieve real-time processing and can run at 500 fps for images with a resolution of 800 × 600. This technique was verified on an original dataset captured by a high-speed camera under different illumination conditions such as a sunset or night scene. The recall and accuracy justify the generalization of the proposed detection system. In particular, it can detect traffic lights with a different appearance without tuning parameters and without datasets having to be learned.<p />  <p>Language: en</p>
LA  - en
SN  - 1424-8220
UR  - http://dx.doi.org/10.3390/s20144035
ID  - ref1
ER  -