License plate recognition system identification accuracy is not high what reason?

2022-09-01 00:00:00

At present, the market most of the parking lot of license plate recognition system has been adopted.License plate recognition is a basic configuration of the parking lot, however, when the owner left the parking lot, still can’t again through exports, license plate recognition camera does not recognize the license plate, must return to identify.So, what influence the effect of license plate recognition cameras? title="nantong huanli"

1: license plate recognition camera installation location problems

is generally recommended that the front vehicle adjust vehicle identification into the area, so it can crawl to the hd license plate.The level of the camera Angle shall be maintained at between 15 and 20 degrees.Specific details need to adjust the Angle of license plate filming machine according to the environment.

2: the speed of the vehicle

we can see video, usually are made up by multiple pictures, this is also known.And license plate recognition cameras will be from the play continuously in the picture, select one of the images as the output, in which to select different frames as recognition images.To achieve the result of video identification;So there is a kind of situation, when the speed too fast, easy to frame drop, identify not to come out, so you can see most of the methods of dealing with the manufacturer’s, and a speed bump.

3: feeling buried coil position and distance

ground sense coil and way don’t get too close to the gate, the first easy to hit the vehicle, the second will affect the license plate recognition rate, and finally maintain in 2-3 m distance.

4: license plate recognition algorithm

to improve the license plate recognition rate, the algorithm of license plate recognition system must be accurate and powerful.License plate recognition cameras will now have their own algorithms, but the license plate recognition camera under different environmental conditions will be affected, so environment has great influence on license plate recognition.

5: environmental impact weather

when the license plate recognition cameras used in outdoor, too much can lead to license plate reflection light, will be reduced, and the lack of lighting needs supplementary lighting at night.Second encounter heavy rain, heavy snow weather, such as license plate recognition rate will be slightly lower than normal.