Because the current method is not ideal in digital landscape mapping, the mapping error is high, and the expected mapping effect can not be achieved. Therefore, the application of three-dimensional laser scanning and oblique photography technology in digital landscape mapping is proposed. Firstly, the distribution characteristics of landscape are collected, and the average value of sample characteristics is calculated, then the rules of landscape construction are output and the results of landscape distribution characteristics are calculated. The UAV is equipped with a three-dimensional laser scanner to update the relative altitude, simplify and compress the point cloud data, measure the transverse scanning angle and longitudinal scanning angle of each laser pulse signal, and obtain the three-dimensional coordinates of the measured point; Analyze the overlapping situation of oblique photographic images, build a garden digital mapping model, calculate the external orientation elements of the images, and complete the garden digital mapping. The experimental results show that the error of surveying and mapping data obtained by this method is small, and the matching degree between digital landscape mapping and actual landscape mapping site is high.
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Mengxiao Chen (2024) studied this question.
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