Abstract
We developed a high-speed line scanning laser sensor that has a wide field-of-view (FOV) for a fixed
receiver. The FOV covers the entire region illuminated by laser scanning using a MEMS mirror. The
sensor can acquire the intensity and range images with high resolution and can measure the vehicle’s
shape with high spatial resolution for high-speed vehicles. We demonstrated the sensor performance for
vehicle and tire detection in an electronic toll collection (ETC) gate and realized 100% vehicle detection
and 99.99% tire detection in all-weather conditions. We also studied for the detection of vehicles that
exceeded the legal restrictions on maximum vehicle dimensions and demonstrated±100 mm accuracy
for width and height and 10% accuracy for vehicle length under all-weather conditions.
