Chat About the Impact of Our License Plate Characteristics on License Plate Recognition Rate - Tiger

We have analyzed the technical difficulties of license plate recognition in the parking lot system last time. This time, we want to discuss: the foreign license plate recognition rate is high and the technology is mature, while China has introduced license plate recognition for several years. Although good results have been achieved, why is there still a gap in the overall effect? In addition to the gap in algorithm, the characteristics of license plates in China will also affect the recognition rate. 1. Foreign automobile license plates, such as Europe and America, are generally composed of English letters and Arabic numerals, which are easier to identify, while China is composed of Chinese characters, letters and numbers, which makes it more difficult to identify. 2. Foreign license plate specifications are relatively unified in terms of size and character arrangement, which is convenient for video recognition. Due to China's special national conditions, different vehicle types require different specifications and formats, such as military vehicles, government vehicles, police vehicles, etc., which will also affect license plate recognition. 3. The color of foreign license plate is generally composed of license plate background color and character color, and the color contrast is relatively strong, which is easy to identify; In China, the license plate color is composed of a variety of colors, such as white license plate on blue background, black license plate on yellow background, and black license plate on white background, which will have an impact on license plate recognition. 4. In China, due to road and environmental reasons, the license plate is easy to be polluted and can be used on the road, which also brings difficulties to recognition. After the above analysis, we can see that in China, the recognition rate is not only affected by the algorithm, but also affected by some ideologies. What an amazing conclusion.