Multi-view camera-based bridge defect detecting device and detection image splicing method

Abstract

The invention discloses a multi-view camera-based bridge defect detecting device and a detection image splicing method. The bridge defect detecting device is an image collecting part and comprises: abridge detecting vehicle main body, a cross arm, a first hydraulic oil cylinder, a first connecting bracket, a second hydraulic oil cylinder, a longitudinal arm and a collecting mechanism assembly. The detection image spicing method comprises the steps of in an image processing process, carrying out feature extraction on collected images; matching by using a nearest neighbor algorithm; carrying out feature point screening and purifying; eliminating splicing seams appearing at splicing places due to uneven illumination by using a Lab fusion method; and splicing the images to obtain an overall image of the bottom of a bridge. The bridge defect detecting device of the invention has the advantages that the image of the bottom surface of the bridge can be more quickly and accurately obtained and automatic detection can be realized. The image splicing method disclosed by the invention has the advantages that when the detection images are processed, the accuracy of the detected data can be high; the detection efficiency is high; and the safety hazard can be eliminated at the same time.

Description

technical field [0001] The invention belongs to the technical field of bridge defect detection and image processing technology, and in particular relates to a multi-camera-based bridge defect detection device and detection image splicing method. Background technique [0002] With the development of the country's economy and society, as well as the investment in transportation construction, my country's transportation industry continues to develop, and the number of bridges continues to increase. The increase of bridges has enabled the continuous development of my country's transportation industry. However, due to factors such as natural aging and transportation overload, the safety of bridge structures has been greatly threatened. The use of a large number of bridges has led to a series of problems in the detection and maintenance of bridge defects. And with the passage of time, the number of bridges with defects will continue to increase; attention must be paid to the inspe...

AI Technical Summary

Problems solved by technology

The increase of bridges has led to the continuous development of my country's transportation industry. However, due to natural aging, transportation overload and other factors, the safety of bridge structures is greatly threatened. The use of a large number of bridges has led to a series of problems in the detection and maintenance of bridge defects.

And with the passage of time, the number of bridges with defects will continue to grow; attention must be paid to the inspection of the structural safety of bridges

[0003] At present, the traditional bridge detection is done manually, the accuracy of the measured data is not high, and the efficiency is low, it cannot be operated quickly, and there are also certain hidden safety hazards. A new type of bridge defect detection device is urgently needed

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