Traffic and Transportation (ITS)
How to monitor and properly manage traffic conditions is a common social issue not only in developed countries where automobiles are widespread but also emerging countries where the same trends are expected for the future. ITS (Intelligent Transport Systems) is now being constructed as an infrastructure to prevent traffic accidents by utilizing the latest technology and to maintain a traffic environment where anyone can drive safely. Various efforts including preventive safety measures are in progress toward a safe automotive society, including the use of cameras to detect traffic violations such as speeding and ignoring of traffic lights and to capture license plates.
License plate recognition
Global shutter image sensors that support high-speed shutter and readout can be applied to identify license plates of vehicles traveling in high-traffic environments. Security camera image sensors are used as devices that can recognize license plates clearly, even in dark environments or environments with highly variable lighting conditions.
Confirming the number of individuals in a vehicle (reflection removal)
In observations conducted by fixed-point cameras to enforce traffic regulations, light can be reflected by vehicle windshields depending on the time period and angle, sometimes making it impossible to identify individuals in the vehicle. When installed appropriately, polarization image sensors make it possible to reduce or remove reflected light and detect the number of individuals in a vehicle.
Monitoring in bright or dark environments
Sony’s security camera image sensors, with their high performance in low-light environments and wide dynamic range, are applied in outdoor environments with strict illuminance conditions. They are used to grasp traffic volume, identify traffic congestion, detect traffic accidents or vehicles driving in the wrong direction, identify vehicle registrations, and various other applications.
The mechanism of reflection removal using polarized light, and the features of polarization image sensors
Learn more about polarization image sensor technology in detail.
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