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Laser point cloud extraction method and device

A laser point cloud and extraction method technology, applied in neural learning methods, instruments, biological neural network models, etc., can solve the problem of low point cloud extraction accuracy, and achieve the effect of improving classification accuracy, accurate learning, and rapid extraction

Pending Publication Date: 2020-11-13
武汉慧通智云信息技术有限公司
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  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a laser point cloud extraction method and device to solve the problem of low accuracy of existing point cloud extraction

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  • Laser point cloud extraction method and device
  • Laser point cloud extraction method and device
  • Laser point cloud extraction method and device

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Embodiment Construction

[0021] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work belong to the protection scope of the present invention. The principles and features of the present invention will be described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention, not to limit the scope of the present invention.

[0022] The term "comprising" and other expressions with similar meanings in the description or claims of the p...

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Abstract

The invention provides a laser point cloud extraction method and device. The method comprises the steps: selecting a neighborhood for each point in original point cloud based on three different scalesafter the original point cloud data is obtained, and extracting the neighborhood features as the local features of each point through a point set network; and combining the local features under different scales through a full connection layer, combining the local features with the global features of the original point cloud, and outputting a classification result of each point in the original point cloud through a training classifier. By means of the scheme, the problem that existing tree point cloud extraction is not high in accuracy is solved, the accuracy of tree point cloud classificationcan be improved, and the point cloud extraction speed is increased.

Description

technical field [0001] The invention relates to the field of point cloud data processing, in particular to a laser point cloud extraction method and device. Background technique [0002] 3D laser point cloud data plays a very important role in civil fields such as garden surveys and forest surveys. Generally, laser point clouds collected include roads, trees, buildings and other ground objects. How to quickly extract tree point clouds to obtain Information such as height, diameter at breast height and crown width of the data plays an important role in urban garden surveys. [0003] Since the three-dimensional laser point cloud has three characteristics: sparsity, disorder, and limited information representation, the extraction process of a specific point cloud is relatively complicated. At present, the extraction of tree point clouds is mostly based on the characteristics of tree point clouds through point cloud The feature comparison algorithm extracts tree point clouds. D...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/46G06K9/62G06N3/04G06N3/08
CPCG06N3/08G06V10/44G06N3/045G06F18/241
Inventor 骆朝亮李念
Owner 武汉慧通智云信息技术有限公司