Automatic license plate recognition has two essential technological issues:
· the quality of the license plate recognition software with its applied recognition algorithms , and
· the quality of the image acquisition technology , the camera and the illumination .
The very key factor is the license plate recognition software . The sophistication of the recognition software, the intelligence and quality of the applied license plate recognition algorithms , the mathematical knowledge and the years of experience behind determines the capabilities of the recognition software. The better the algorithms are, the highest the quality of the recognition software is:
the highest recognition accuracy it has,
the fastest processing speed it has,
the most type of plates it can handle,
the widest range of picture quality it can handle,
· the most tolerant against distortions of input data it is.
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