Topographic mapping method of water conservancy projects based on UAV remote sensing technology
By using UAV remote sensing technology to identify and remove corner points of bright spots and floating objects on the water surface, and combining feature judgment and image stitching algorithms, the problem of matching error in topographic mapping of water conservancy projects was solved, achieving higher precision mapping results.
CN119107574BActive Publication Date: 2025-01-24ZHONGCHENG TEST TECH (DALIAN) CO LTD
Patent Information
- Application Number
- CN202411587340.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2044-11-08
AI Technical Summary
Technical Problem
In traditional topographic mapping of water conservancy projects, the presence of bright spots and floating objects on the water surface leads to matching errors during image stitching, affecting the accuracy of the mapping.
Method used
Using UAV remote sensing technology, corner points of bright spots and floating objects on the water surface are identified and removed. The gradient concentration and morphological similarity are used to determine the image stitching, and bilinear interpolation and SIFT algorithms are combined.
Benefits of technology
It improves the accuracy and clarity of topographic mapping for water conservancy projects, reduces matching errors in image stitching, and obtains more accurate mapping results.
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Smart Images
Figure CN119107574B_ABST
Abstract
The present invention relates to the field of image data processing technology, and in particular to a method for topographic mapping of water conservancy projects based on unmanned aerial vehicle remote sensing technology, the method comprising the steps of: using an unmanned aerial vehicle to collect image information of a dam at multiple positions and multiple angles to obtain multiple initial dam images; determining a first target corner point of a bright spot area in the initial dam image, and determining a second target corner point of a floating object area in the initial dam image; removing the first target corner point and the second target corner point to obtain a processed target dam image; splicing multiple target dam images to obtain and output a water conservancy project topographic map. Through the method for topographic mapping of water conservancy projects based on unmanned aerial vehicle remote sensing technology of the present invention, the corner points of the bright spot area and the floating object area are accurately removed, and in the process of matching images, matching errors are reduced, the quality and accuracy of image splicing are significantly improved, and a more accurate and clear water conservancy project topographic map is obtained.
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