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Tree Classification in Complex Forest Point Clouds Based on Deep Learning
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DOI：10.1109/LGRS.2017.2764938.png)
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摘要
En 中文
Recently, the classification of tree species using 3-D point clouds has drawn wide attention in surveys and forestry investigations. This letter proposes a new voxel-based deep learning method to classify tree species in 3-D point clouds collected from complex forest scenes. The proposed method includes three steps: 1) individual tree extraction based on the density of the point clouds; 2) low-level feature representation through voxel-based rasterization; and 3) classification of tree species by a deep learning model. Two data sets of 3-D forest point clouds acquired by terrestrial laser scanning systems are used to evaluate the proposed method. The method achieves an average classification accuracy of 93.1% and 95.6% on the two data sets. Furthermore, in comparative experiments, the proposed method exhibits performance superior to that of the other 3-D tree species classification methods.
Keyword:
Deep learning
point clouds
rasterization
terrestrial laser scanning (TLS)
tree species classification
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16.4
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1.0W
被引数:
5.1K
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