Podocarpus macrophyllus three-dimensional refined modeling method using ground-based laser radar

The invention relates to the technical field of computer graphics and agricultural informatization, in particular to a podocarpus macrophyllus three-dimensional refined modeling method using a foundation laser radar, which comprises the following steps: obtaining foundation laser radar point cloud data of podocarpus macrophyllus, and carrying out crown-trunk separation on the podocarpus macrophyllus based on the foundation laser radar point cloud data to obtain a podocarpus macrophyllus crown-trunk separation result; based on a podocarpus macrophyllus crown stem separation result, extracting a podocarpus macrophyllus stem skeleton structure, and constructing a podocarpus macrophyllus stem three-dimensional model by taking the podocarpus macrophyllus stem skeleton structure as a constraint; based on the podocarpus macrophyllus crown-trunk separation result, segmenting a podocarpus macrophyllus crown to obtain a plurality of podocarpus macrophyllus crown point clusters; and based on the podocarpus macrophyllus