How HD license plate recognition works:
1. Strong light shielding: Based on the low-light color camera, through the function of the software, the brightest part of the image is blocked in the traffic monitoring. Generally, the headlight's strong light can be blocked and the license plate can be captured more clearly. But the biggest drawback of this camera is that the software is not clear, the brightest part of the image is unclear, it is possible to block the license plate number, and it is impossible to handle the capture of high-speed moving objects. More than one, the effect varies from party to party
2. Adjustable electronic shutter: For high-speed movement of objects capture (vehicle speed on the highway is generally more than 70KM / hour), you can achieve a clear capture by reducing the electronic shutter speed, usually through manual adjustment but this The biggest problem with the way is that the illumination during the day and night is not the same. It is necessary to set two shutter speeds to adapt to daytime and nighttime monitoring respectively.
3. Wide dynamic function: This is the best way to solve the impact of headlights on capture. The wide dynamic was originally proposed by Matsushita. When the background light was too bright, ordinary cameras could not solve the display problem of light and dark images well.
As the most important means of identifying vehicle identities in the field of intelligent transportation, license plate recognition technology has played a significant role in realizing the intelligent management of traffic, and it has infiltrated the license plate recognition technology in various tasks.
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