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A Component Analysis Method of Line Scanning 3D Pavement Data

A technology of data components and analysis methods, applied in image analysis, image data processing, image enhancement, etc., to achieve the effect that is conducive to accurate extraction

Active Publication Date: 2022-03-22
WUHAN WUDA ZOYON SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The present invention provides a line scanning three-dimensional road surface data component analysis method, which is used to solve the problem of extracting road surface information only for a single index in the prior art, and realize a more robust and universal road surface information extraction method

Method used

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  • A Component Analysis Method of Line Scanning 3D Pavement Data
  • A Component Analysis Method of Line Scanning 3D Pavement Data
  • A Component Analysis Method of Line Scanning 3D Pavement Data

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Embodiment Construction

[0042]In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0043] In order to better illustrate the working process of the present invention, the principle of implementation of the present invention will be explained below.

[0044] The existing pavement single index detection method based on three-dimensional pavement data uses the elevation characteristics of a certain disease or index on the road surfac...

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Abstract

The invention provides a line scanning three-dimensional pavement data component analysis method, the method comprising: designing a low-pass filter suitable for the three-dimensional pavement data through the analysis of the pavement component characteristics, performing frequency-domain low-pass filtering on the three-dimensional pavement cross-section data to be detected, respectively Obtain the low-frequency components and high-frequency components corresponding to the cross-sectional data; further divide the above-mentioned high-frequency components into sparse feature data and vibration feature data through the full variation model; according to the low-frequency data, the sparse feature data and the The vibration characteristic data is beneficial for analyzing and identifying one or more of ruts, cracks, marking lines, potholes and textures in the three-dimensional road cross-section to be detected. The invention is based on the high-precision three-dimensional road surface data obtained by the line-scanning three-dimensional measurement technology, which can realize the separation of typical road surface component information of the three-dimensional road surface data, and considers the complex scene information in the high-precision three-dimensional road surface data, which is more conducive to the identification of three-dimensional road surface related index information Precise extraction.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of line-scanning three-dimensional data processing, and in particular to a method for analyzing components of line-scanning three-dimensional road surface data. Background technique [0002] With the development of line-scanning 3D measurement technology, the accuracy of the data obtained by the 3D measurement system is getting higher and higher. For example, the cross-section accuracy of the road surface 3D measurement system can reach 1mm, and the elevation accuracy can reach 0.5mm. The 3D pavement elevation data obtained by using the above-mentioned high-precision 3D pavement measurement system contains relatively complex pavement information: macroscopic information includes pavement geometry, pavement deformation and disease (ruts, potholes, etc.), pavement cracks, pavement markings, etc.; microscopic information includes Depth of road surface etc. On the other hand, there is a ce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06V10/44
CPCG06T7/0004G06T2207/10012G06T2207/30132G06V10/443
Inventor 李清泉张德津曹民林红桂容
Owner WUHAN WUDA ZOYON SCI & TECH
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