What else do you need to know about the license plate recognition system?
Nowadays, the license plate recognition system has quickly become the darling of major shopping malls, communities and office buildings. It continues to expand its market share with its unique card-free convenience, quick entry and exit. However, is the license plate recognition system really "high and complete" as we see it? To put aside what we know to be familiar with, we also need to understand and pay attention to what issues are the license plate recognition systems in car park management. Today Xiao Bian will give you some details on the license plate recognition.
The conflict between recognition speed and large pixels
The farther the license plate is for the license plate recognition camera, the smaller the pixels are, the larger the pixels are the closer they are. The parking lot has shorter lanes than other scenes, and the recognition of the current license plate recognition system is real-time. To ensure the recognition speed, it supports the identification of large-pixel-width license plates, which is a typical contradiction. Usually the license plate pixel width is too large, the recognition speed must be slow, recognition speed is faster, it requires the license plate pixel width within a certain range.
Use existing conditions to make the algorithm efficient
Parking lanes usually have two lanes. In order to better identify the effect, a deceleration belt is usually installed at the entrance and exit of the parking lot to ensure that the pictures captured by the license plate recognition camera are clearer. Therefore, it is possible to maximize the use of conditions such as slow speed, good lighting, low interference conditions, and generally only one car at a time, so that the algorithm can reach a perfect state under such conditions.
Multi-technology to achieve a good parking entrance "vehicle match rate"
The license plate recognition system's own architecture and internal recognition algorithms are also constantly improving and improving. Particularly worthy of attention is that some technologies developed based on the license plate recognition hardware platform, such as video speed measurement, vehicle identification, vehicle local feature identification and comparison, etc., cooperate with license plate recognition in order to achieve good parking entrances and exits. "This is only the characteristics of the parking lot environment.
White list function
A major feature of residential car parks is that the vehicles entering and leaving the car every day are basically fixed, so the white list function of the license plate recognition system can be used for this part of the car. After the white list is imported into the license plate recognition system, the vehicles in the white list function list can be automatically released. Blacklists can also be added to vehicles that you do not want to put.
The conflict between recognition speed and large pixels
The farther the license plate is for the license plate recognition camera, the smaller the pixels are, the larger the pixels are the closer they are. The parking lot has shorter lanes than other scenes, and the recognition of the current license plate recognition system is real-time. To ensure the recognition speed, it supports the identification of large-pixel-width license plates, which is a typical contradiction. Usually the license plate pixel width is too large, the recognition speed must be slow, recognition speed is faster, it requires the license plate pixel width within a certain range.
Use existing conditions to make the algorithm efficient
Parking lanes usually have two lanes. In order to better identify the effect, a deceleration belt is usually installed at the entrance and exit of the parking lot to ensure that the pictures captured by the license plate recognition camera are clearer. Therefore, it is possible to maximize the use of conditions such as slow speed, good lighting, low interference conditions, and generally only one car at a time, so that the algorithm can reach a perfect state under such conditions.
Multi-technology to achieve a good parking entrance "vehicle match rate"
The license plate recognition system's own architecture and internal recognition algorithms are also constantly improving and improving. Particularly worthy of attention is that some technologies developed based on the license plate recognition hardware platform, such as video speed measurement, vehicle identification, vehicle local feature identification and comparison, etc., cooperate with license plate recognition in order to achieve good parking entrances and exits. "This is only the characteristics of the parking lot environment.
White list function
A major feature of residential car parks is that the vehicles entering and leaving the car every day are basically fixed, so the white list function of the license plate recognition system can be used for this part of the car. After the white list is imported into the license plate recognition system, the vehicles in the white list function list can be automatically released. Blacklists can also be added to vehicles that you do not want to put.
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