Manhole cover anomaly detection method and device and application thereof

Abstract

The invention provides a manhole cover anomaly detection method. The manhole cover anomaly detection method comprises the steps of obtaining a road surface video image containing image depth information, an inclination angle of shooting equipment when the road surface video image is shot, and an internal reference coefficient of the shooting equipment; obtaining a well lid image and a well lid state from the road surface video image, and calculating the deformation depth or deformation height of each image point after the well lid image is subjected to rasterization according to the inclination angle and the internal reference coefficient of the shooting equipment and the image depth information; and based on the deformation depth or deformation height of each image point, judging whether the well lid is abnormal or not in different well lid states. According to the method, a road surface video image containing image depth information is collected, a well lid image is obtained from the road surface video image, the well lid state is detected and obtained, the deformation depth or the deformation height of each image point is calculated, and then whether the well lid is abnormal or not in different well lid states is judged according to the deformation depth or the deformation height of each image point.

Description

technical field [0001] The present application relates to the technical fields of urban management and image recognition, and in particular to a method, device and application for manhole cover abnormality detection. Background technique [0002] With the rapid development of my country's economic level, people's material consumption level continues to increase, and the corresponding number of cars is also increasing rapidly, so the problem of abnormal road manhole covers is becoming more and more prominent. Manhole covers are widely distributed in every corner of modern cities, such as common water manhole covers and sewer manhole covers, etc. Industries such as electric power and communications also basically use low-level wiring. However, in recent years, manhole covers have often been lost, damaged, or deformed so that they cannot be closed, which poses a huge safety hazard to the lives and properties of the public. [0003] Existing road manhole cover abnormality inspe...

AI Technical Summary

Problems solved by technology

However, in recent years, manhole covers have often been lost, damaged, and manhole covers deformed so that they cannot be closed, which poses a huge safety hazard to the lives and properties of the public.

[0003] Existing road manhole cover abnormality inspection is mainly through manual visual judgment on the city management operation vehicle, which is not only inefficient, but also quite time-consuming and manpower-consuming

And the recently invented smart manhole cover can identify and report its own situation, but such a smart manhole cover has a high cost, and it is very easy to cause the electronic components in the smart manhole cover to fail due to environmental factors or human factors, and the scrap rate is high

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