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Intelligent identification method for vehicle exhaust inspection report

A technology of intelligent recognition and tail gas, applied in character and pattern recognition, instruments, calculations, etc., can solve problems such as high labor costs, increased error rates, and low efficiency, and achieve the effect of saving manpower

Inactive Publication Date: 2019-09-17
上海眼控科技股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional vehicle exhaust inspection report detection is mainly through manual verification. This method has high labor costs and low efficiency. Working for a long time will also lead to an increase in the error rate.

Method used

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  • Intelligent identification method for vehicle exhaust inspection report
  • Intelligent identification method for vehicle exhaust inspection report
  • Intelligent identification method for vehicle exhaust inspection report

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Experimental program
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Embodiment Construction

[0041] The present invention will be further described below in conjunction with the accompanying drawings.

[0042] The invention is mainly based on a target detection module, a character extraction module and a judgment module.

[0043] Such as figure 2 As shown, the target detection module is composed of an image correction unit, a table format detection unit, a seal detection unit, and a text detection unit. First, the image correction unit uses Canny edge detection and LSD line detection to obtain the angle of image deflection and correct the image. Then use the corrected image as the input of the table format detection unit, apply the table format detection model, and obtain the ROI area; use the corrected image as the input of the seal detection unit, apply the seal detection model, and detect the red stamp and the MA stamp; according to the ROI Region offset gets the candidate region of text class information, takes the candidate region as the input of the text dete...

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Abstract

The invention discloses an intelligent identification method for a vehicle exhaust inspection report. The method comprises the following steps of correcting a vehicle exhaust inspection report image by adopting the affine transformation; positioning an ROI (region of interest), marking the vehicle exhaust inspection report, positioning a red stamp and an MA (multiple access) stamp, and performing offset according to the positioned ROI to obtain a candidate area, and positioning a sign, a conclusion, a license plate number and a rectangular frame of a frame number; detecting whether the signature is qualified; and finally, extracting the license plate number characters by adopting a character segmentation model based on a deep learning network, comparing the license plate number characters with the archived content of the server, and counting the result of the whole process to judge whether the vehicle exhaust inspection report passes or not. According to the invention, the automatic identification of the vehicle exhaust inspection report is realized, the existing manual auditing mode is replaced, the manpower is saved, the auditing speed is increased, and the disclosure and justice of the auditing work are ensured.

Description

technical field [0001] The invention relates to the technical field of artificial intelligence judgment of image recognition, in particular to the technical field of intelligent recognition of vehicle exhaust inspection reports. Background technique [0002] With the rapid development of social economy and the continuous improvement of people's living standards, the number of urban motor vehicles has increased rapidly. The workload of the annual inspection of motor vehicles has also increased rapidly. The traditional vehicle exhaust inspection report detection is mainly through manual verification. This method has high labor costs and low efficiency. Working for a long time will also lead to an increase in the error rate. [0003] How to accurately and quickly check the annual inspection tax payment certificate, while avoiding the high cost and low efficiency of manual checking, and the high error rate caused by long-term work, is a technical problem that needs to be solved...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/32G06K9/62
CPCG06V30/413G06V30/414G06V30/418G06V30/40G06V10/25G06V2201/134G06F18/214
Inventor 周康明秦征骁
Owner 上海眼控科技股份有限公司
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