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Network built-in type multiplex license plate detecting system and method thereof

A license plate detection and embedded technology, which is applied in the traffic control system of road vehicles, traffic control system, character and pattern recognition, etc., can solve problems such as unsatisfactory effects, and achieve improved recognition rate, strong anti-interference, and improved quality effect

Active Publication Date: 2008-06-11
北京海鑫科金高科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A lot of work has been done on the precise positioning of the license plate at home and abroad, but the effect is not very satisfactory, such as the tilt of the license plate, surface dirt and wear, light, etc. are all important factors affecting the positioning accuracy

Method used

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  • Network built-in type multiplex license plate detecting system and method thereof
  • Network built-in type multiplex license plate detecting system and method thereof
  • Network built-in type multiplex license plate detecting system and method thereof

Examples

Experimental program
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Embodiment 1

[0020] This embodiment is a network-embedded multi-channel license plate detection system, as shown in the block diagram of FIG. 1 . The system includes: four camera devices for image data acquisition, the camera devices are connected to the input ends of the multi-channel high-resolution video image acquisition interface for transmitting image data, and the multi-channel high-resolution video image acquisition The output end of interface is connected with the input end of video decoder, and the output end of video decoder is connected with the signal input end of digital signal processor DSP as central processing unit, and described digital signal processor is connected with first-in-first-out memory FIFO, Synchronous dynamic random access memory SDRAM, rewritable memory, and complex programmable logic device CPLD are connected; the Ethernet interface EMAC of the digital signal processor is connected with the Ethernet transceiver that realizes the RJ45 Ethernet interface; the ...

Embodiment 2

[0024] This embodiment is an improvement on the camera device based on the first embodiment. The camera device may be one of a camera, a digital camera, and a digital video camera. It is an image acquisition device that can output digital image signals.

Embodiment 3

[0026] This embodiment is an improvement on the camera device based on the first embodiment. The camera device may be an electronic device capable of collecting analog video signals. That is, it may be one of an analog camera, an analog camera, and the like.

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Abstract

The present invention relates to a network embedded multi-channel license plate detection system and a license plate detecting method, which is a system and method that can flexibly configure various detection parameters through networks to realize multi-channel and high-definition license plate detection. The system comprises a central processor module, a memory module and an input-output module which are connected with each other through a bus. The method is based on multi-channel image shooting, which has the advantages of more comprehensive image shooting and more information collecting for more useful data so as to contribute to significant improvement in the analysis of image. As the present invention uses the character identification technology based on Gabor filter groups to detect license plates, and as the method has the advantages of strong anti-interference performance, accurate identification, etc., the influence of the background on license plate images is eliminated. Therefore, even under less favorable conditions, the license plate images can be clearly analyzed, which improves the recognition rate of license plates.

Description

technical field [0001] The invention relates to a network-embedded multi-channel license plate detection system and a license plate detection method. system. The invention is a system and method capable of flexibly configuring various detection parameters through a network to realize multi-channel, high-definition license plate detection. Background technique [0002] License plate recognition is an important part of the intelligent transportation system and a relatively popular research topic. Many scientific and technological workers have made efforts for this; the task of license plate recognition is to analyze and process the collected car images, and automatically recognize the car plate number. [0003] The automatic license plate recognition system has a wide range of applications: 1. Urban road monitoring and violation management. 2. Traffic statistics, safety management, etc. 3. Community, parking lot management. 4. Expressway toll collection, monitoring and man...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/36G08G1/017
Inventor 张进王贤良刘晓春刘长松
Owner 北京海鑫科金高科技股份有限公司
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