Driving examination system based on CCD monocular distance measurement

Abstract

The invention discloses a driving examination system based on CCD monocular distance measurement and belongs to the image processing field. The system comprises an image acquisition module, an image processing module, an illegal determination module and an examination evaluation module. Through acquiring surrounding image information of an examination vehicle, pretreatment is performed on the image information, an examination marker in a pretreatment result is extracted and a distance between the current examination vehicle and the examination marker is determined. According to a size relation between the distance and a preset threshold, information of whether an illegal condition is generated is generated and a examination result is performed according to the information. Compared to the prior art, by using the system of the invention, whether the examination passes can be accurately determined and a defect that the examination result can not be determined because examination vehicle information can not be acquired according to GPS in the prior art is overcome.

Description

technical field [0001] The invention belongs to the field of image processing, in particular to a driving test system based on CCD monocular distance measurement. Background technique [0002] In the initial driving test, the examiner follows the car to assess the driving level of the candidates. The traditional examination method tends to be replaced by the electronic examination system due to its shortcomings such as consuming police force, being easily affected by the subjective judgment of the examiner, and easily causing mental stress to the examinee. The electronic test systems that have been launched so far include: electronic pile test system, field electronic road test system and actual road electronic test system. [0003] The realization of the driving test using the electronic test system is mainly through the GPS detection method, that is, a GPS positioning system is installed on the test vehicle, and the driving position of the vehicle is located based on the ...

AI Technical Summary

Problems solved by technology

[0005] Existing GPS detection method can only locate the position of the GPS receiving antenna installed on the test car, therefore, in some cases (as the vehicle travels very slowly, turns especially when parking), it is impossible to determine the direction of the test car , so it is impossible to infer the coordinates of other parts of the test vehicle, which is not conducive to the promotion of GPS technology in driving test applications

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