Vehicle-mounted laser point cloud classification method

A vehicle-mounted laser and classification method technology, which is applied in the directions of instruments, calculations, character and pattern recognition, etc., can solve problems such as low efficiency and affecting user experience

Active Publication Date: 2017-04-26
LEADOR SPATIAL INFORMATION TECH CORP
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Problems solved by technology

The traditional purely artificial laser point cloud classification will consume a lot o

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  • Vehicle-mounted laser point cloud classification method
  • Vehicle-mounted laser point cloud classification method

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Embodiment Construction

[0019] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit this invention.

[0020] The principle of the present invention is: the noise point presents the feature of low density, and the isolated noise point is filtered out through the density information of the point cloud; multiple points appear in the same position or very close positions, and are removed through the position information of the point cloud Redundant point data; through the spatial structure information of the point cloud, calculate point features, including elevation features, line features, surface features and normal vector features; according to point features, ...

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Abstract

The invention discloses a vehicle-mounted laser point cloud classification method. The method includes the steps of inputting three-dimensional laser point cloud data; utilizing GPS time and a running track, and performing partitioning processing on the three-dimensional laser point cloud data; then performing preprocessing; performing preliminary classification on preprocessed data blocks; and performing secondary classification on the data blocks after preliminary classification and outputting laser point cloud data after classification. The vehicle-mounted laser point cloud classification method provided by the invention is high in classification accuracy, easy to perform parallel processing and fast in processing speed.

Description

technical field [0001] The invention belongs to the technical fields of photogrammetry, artificial intelligence and smart city, and in particular relates to a vehicle-mounted laser point cloud classification method. Background technique [0002] Nowadays, in the fields of photogrammetry, digital city, etc., the vehicle-mounted laser acquisition system has the advantages of fast, non-contact, high-precision, easy automation and digitization because it can quickly and widely acquire high-precision spatial information data on the surface of urban targets. It is used for data acquisition and update in urban three-dimensional space. [0003] The development of vehicle-mounted laser technology has solved the problems of data acquisition and mass data update to a certain extent, but the lack of realization of functions such as point cloud classification, modeling and scene reconstruction in data post-processing limits the application and development of laser data. . Accurate lase...

Claims

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Application Information

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IPC IPC(8): G06K9/62
CPCG06F18/232G06F18/2411
Inventor 仇开金孙凯丁蔻舒振
Owner LEADOR SPATIAL INFORMATION TECH CORP
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