一种基于航拍图像的地形测绘方法

By using a landmark modeling method based on aerial imagery, the problem of low efficiency in traditional topographic mapping is solved, enabling efficient and low-cost topographic mapping and data generation, and supporting a wider range of topographic mapping applications.

CN115683063BActive Publication Date: 2026-07-17ZHEJIANG TIANYU GEOGRAPHIC INFORMATION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG TIANYU GEOGRAPHIC INFORMATION TECH CO LTD
Filing Date
2022-11-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies cannot perform topographic mapping quickly and effectively; traditional methods are inefficient and cannot meet the ever-increasing demand for topographic data.

Method used

By reading aerial images and flight path information, a landmark model is established, the three-dimensional coordinates of the landmark points are calculated, and the topographic mapping results are generated based on the boundary coordinates. The region template and landmark model elements are used for identification and matching, thereby improving the efficiency and accuracy of mapping.

Benefits of technology

It enables rapid and low-cost topographic mapping, generates models in electronic data format, supports a wider range of applications, and improves mapping efficiency and accuracy.

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Abstract

本发明涉及地形测绘技术领域,具体涉及一种基于航拍图像的地形测绘方法,包括以下步骤:读取航拍图像及航线信息;根据航线信息获得每张航拍图像对应的相机坐标;建立每张航拍图像中出现的物标模型;在物标模型上选定物标点,读取同一物标点均出现的两张航拍图像;根据物标点在两张航拍图像中的像素位置及航拍图像对应的相机坐标,计算获得物标点的三维坐标;根据物标点获得物标模型的坐标信息,根据边界坐标建立地形测绘结果。本发明的有益技术效果包括:通过航拍图像及航线信息实现地形的测绘,提高了地形测绘的效率,降低了地形测绘的成本。
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