Method of Extracting Plantation Stand Structure Parameters Based on Aerial Photogrammetry Point Cloud
A technology of aerial photography and forest stand structure, which is applied in the field of forest resource detection, can solve the problems of extracting the parameters of the unseen forest stand structure and not extracting the three-dimensional structure characteristics of the canopy, so as to suppress the high forest coverage and facilitate the explanation of the mechanism , Improve the effect of inversion accuracy
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[0035] The present invention will be further illustrated below in conjunction with specific examples, which are implemented on the premise of the technical solutions of the present invention. It should be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention.
[0036] The method for extracting structural parameters of a plantation stand based on aerial photogrammetry point cloud of the present application mainly includes the following steps:
[0037] (1) Set up sample plots on the ground, collect high-overlap image data and LiDAR original point cloud data with the help of drones; record and count tree species in the sample plots, and measure the DBH and height of each tree;
[0038] (2) Filter and interpolate the original LiDAR point cloud data to generate a digital terrain model; process the image data to generate an aerial photogrammetric point cloud;
[0039] (3) Use the generated digital terrain...
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