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Method and system for automatic component detection of Banqiao bridge point cloud

An automatic detection and bridge technology, applied in image enhancement, image analysis, instruments, etc., can solve the problems of detecting bridge components, high computational burden, training classifiers, etc., to achieve the effect of ensuring integrity

Inactive Publication Date: 2018-11-23
吕若丹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are two major problems in applying these machine learning methods based on large amounts of data to bridge component detection: first, there is a lack of a large number of real bridge PCDs to train a good classifier, and second, the computational burden is too high
[0021] Therefore, there is currently no effective and feasible method to detect bridge components in real bridge PCD

Method used

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  • Method and system for automatic component detection of Banqiao bridge point cloud
  • Method and system for automatic component detection of Banqiao bridge point cloud
  • Method and system for automatic component detection of Banqiao bridge point cloud

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Embodiment Construction

[0064] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0065] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0066] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinatio...

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Abstract

The invention discloses a slab bridge point cloud-based automatic component detection method and system. The method comprises the following steps of: aligning a bridge floor axle wire of a slab bridgewith a standard coordinate axis set in a global coordinate system through obtaining point cloud data of the slab bridge; and slicing different data sets, defining each slice by utilizing a bounding box, carrying out classification according to the height and size of each bounding box so as to finally recognize the components such as a bridge pier, a bridge floor and / or a pier cap. According to the method and system, the stage of generating surfaces from points is completely bypassed, and point cloud cut point sets with semantic tags are directly obtained.

Description

technical field [0001] The invention belongs to the engineering application field of 3D reconstruction, and in particular relates to a component automatic detection method and system of Banqiao bridge point cloud. Background technique [0002] With the development of bridge 3D information modeling technology BrIM (Bridge Information Modelling), the global infrastructure market is ready for the extensive application of bridge information models. The bridge information model provides engineers with a digital representation of the bridge information, which can be shared across different platforms and is available throughout the life of the bridge. [0003] However, very few current infrastructure projects use this architectural modeling technique. It can be seen from this that although laser scanning technology can collect point cloud data faster and better at present, because the point cloud data cannot be automatically converted into BrIM model at this stage, the utilization...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50G06T17/00
CPCG06F30/13G06T17/00G06T2207/10028
Inventor 吕若丹郭亮刘建亚
Owner 吕若丹