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Method and device for fake-license-plate analysis

A deck and technology to be analyzed, which is applied in traffic control systems, instruments, traffic control systems, etc. of road vehicles, can solve the problem of car C being mistaken for a deck, and achieve the effect of reducing false positives and improving the rate of deck discovery

Active Publication Date: 2014-07-09
ZHEJIANG UNIVIEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the minimum time interval between the two bayonets and the time difference of the vehicle passing through the shooting, it may cause the car C to be mistaken for a deck when it goes from bayonet 6680 to bayonet 3351 or from bayonet 3351 to bayonet 6681

Method used

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  • Method and device for fake-license-plate analysis
  • Method and device for fake-license-plate analysis
  • Method and device for fake-license-plate analysis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Please refer to image 3 The flow shown, the method includes:

[0032] S11. Obtain information on each shooting bayonet and shooting time of the license plate to be analyzed in the monitoring system.

[0033]Usually a monitoring system includes several bayonets, and each bayonet (referring to the bayonet camera here) will take pictures of passing vehicles. If the bayonet has the recognition function for the license plate, the license plate of the photographed vehicle can be recognized, and the recognized license plate and the shooting time of the license plate are sent to the server of the monitoring system, and the server saves it and the bayonet information in the license plate database; if the bayonet does not have the function of license plate recognition, the captured vehicle photos will be sent directly to the server, and the server will perform the recognition of the license plate, and record the recognized license plate, the shooting time of the vehicle photo, ...

Embodiment 2

[0050] In this embodiment, the method in Embodiment 1 is further improved. Please refer to the specific implementation process Figure 5 .

[0051] S21 is the same as S11, S22 is the same as S12, and S23 is the same as S13, and the description will not be repeated here.

[0052] S24. Confirm the adjacent bayonet to n-level adjacent bayonet information of the adjacent bayonet of any inconsistent bayonet according to the pre-stored bayonet connection information.

[0053] S25. Judging whether the adjacent bayonets to the n-level adjacent bayonets of the adjacent bayonets of any inconsistent bayonet have photographed license plates similar to the license plate in sequence within the relevant time, and the adjacent bayonet has not photographed any license plate similar to the said license plate. If there is a similar license plate to the above license plate, then the license plate is not overlapped, otherwise execute S26.

[0054] refer to Figure 4 To explain the adjacent bay...

Embodiment approach

[0055] Still combining the above example, assuming that n is equal to 1, assuming that the license plate similar to license plate 1 is license plate 2. Here, the adjacent bayonet of the inconsistent bayonet is 2111, so it is necessary to judge whether the adjacent bayonet of bayonet 2111 and the first-level adjacent bayonet have the license plate 2 sequentially photographed within the relevant time and the adjacent bayonet does not have the license plate 2 photographed. If so, it is determined that the license plate 1 is not decked, otherwise further judgment is required. If the time when the license plate 1 is photographed by the adjacent bayonet 2111 of the inconsistent bayonet is t, then the relevant time for judging whether the adjacent bayonet 2111 and the first-level adjacent bayonet sequentially photographed the license plate 2 is the time related to t. The adjacent bayonets of the bayonet 2111 and the level 1 adjacent bayonets may be upstream bayonets 2110, 2109, or do...

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Abstract

The invention provides a method for fake-license-plate analysis. The method comprises the steps that (1) information of all shooting checkpoints and information of the shooting time of license plates, to be analyzed, in a monitoring system are obtained; (2) the checkpoints are sequenced according to the sequence of the shooting time of the license plates; (3) whether information of a checkpoint adjacent to any checkpoint of the sequenced checkpoints is consistent with prestored checkpoint communicating information or not is judged, if yes, the license plates are real, and if not, the step (4) is executed, wherein the checkpoint communicating information is used for recording adjacency relation of the checkpoints; (4) all reachable paths from any inconsistent checkpoint to a checkpoint adjacent to the inconsistent checkpoint are determined according to the prestored checkpoint communicating information, whether a path meeting the requirement that the number of the checkpoints on the path is smaller than or equal to a preset value N exists in the reachable paths or not is judged, if yes, the license plates are real, and if not, fake license plates exist in the license plates. The method for fake-license-plate analysis overcomes the defect caused by fake-license-plate analysis through time track collisions.

Description

technical field [0001] The present invention relates to the technical field of video surveillance, in particular to a method for deck analysis Background technique [0002] As the number of urban taxis increases, there are more and more illegal taxis, such as operating without a license, fake licenses, and license plates. These vehicle violations are becoming more and more rampant, seriously disrupting market order and social security. With the rapid development of intelligent traffic management systems, the current management of illegal vehicles no longer uses the traditional manual check method. Some existing vehicle identification systems compare the collected license plate information with the data of the monitoring center, and then automatically analyze illegal vehicles and process them. [0003] The analysis and judgment of license plate vehicles in the prior art mainly adopts the bayonet camera in video surveillance to capture the license plate information, and reco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/017
Inventor 张磊周斌
Owner ZHEJIANG UNIVIEW TECH CO LTD
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