Fixed wing unmanned aerial vehicle touring image accurately-splicing method for power transmission line

A transmission line and transmission line technology, applied in image enhancement, image data processing, graphic image conversion, etc., can solve the problems of high splicing accuracy requirements, unnatural wire orientation, and poor wire connection, so as to achieve complete and clear display. , Avoid wire breakage and breakage, and ensure the effect of accuracy
CN103761722BActive Publication Date: 2015-03-11EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID
Publication Date
2015-03-11

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Abstract

The invention discloses a fixed wing unmanned aerial vehicle touring image accurately-splicing method for a power transmission line. The accurately-splicing method includes the following steps: (1) conducting data preparation and sample training; (2) conducting feature extraction on the power transmission line based on textural features and straight line features to obtain a power transmission line distributing area and power transmission line extraction data, screening the power transmission line extraction data through the power transmission line distributing area, and obtaining power transmission line extracting results through power transmission line double-edge features; (3) conducting SIFT image registration and fusing based on power transmission line customization on the power transmission line extracting results. According to the fixed wing unmanned aerial vehicle touring image accurately-splicing method, curvelet transformation is adopted for achieving extraction on power transmission line texture information and detection on power transmission line distribution, and the power transmission line double-edge features in high-resolution unmanned aerial vehicle images are further adopted for obtaining the reliable and accurate power transmission line extracting results.
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Description

technical field

[0001] The invention relates to an image splicing method, in particular to a method for precise splicing of inspection images of a fixed-wing unmanned aerial vehicle on a power transmission line. Background technique

[0002] The existing fixed-wing UAV inspection image stitching technology is mainly used in surveying and mapping, and many stitching methods are used. The main problems in the field include low stitching accuracy and slow stitching speed.

[0003] There is currently no application in mosaic of fixed-wing UAV inspection images, and there are no relevant domestic reports. Only by mosaicing the inspection sequence images of fixed-wing UAVs on transmission lines to form a complete panoramic image of transmission line corridors can provide intuitive and accurate power transmission Lines, especially corridor information, fixed-wing UAVs fly at a high altitude, and the flight height to the ground generally reaches 300-500m. High-precision stitching r...

Claims

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