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Indoor three-dimensional model automatic reconstruction method and system with structural semantics

A technology of 3D model and structural semantics, which is applied in the field of automatic reconstruction of indoor 3D models, can solve the problem of low accuracy of 3D point cloud, and achieve the effect of good robustness and reconstruction accuracy

Active Publication Date: 2019-07-12
SHENZHEN UNIV
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method and system for automatic reconstruction of indoor 3D models with structural semantics, aiming at solving the problem of using 3D point clouds in indoor semantic components in the prior art. The problem of low accuracy in extraction

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  • Indoor three-dimensional model automatic reconstruction method and system with structural semantics
  • Indoor three-dimensional model automatic reconstruction method and system with structural semantics
  • Indoor three-dimensional model automatic reconstruction method and system with structural semantics

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[0055] In order to make the objectives, technical solutions and advantages of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0056] The present invention provides a method for automatically reconstructing an indoor three-dimensional model with structural semantics, which can be applied to smart terminals. Among them, smart terminals can be, but are not limited to, various personal computers, notebook computers, mobile phones, tablet computers, vehicle-mounted computers, and portable wearable devices. The intelligent terminal of the present invention adopts a multi-core processor. The processor of the smart terminal may be at least one of a central processing unit (Central Processing Unit, CPU), a graph...

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Abstract

The invention discloses an indoor three-dimensional model reconstruction method and system with structural semantics, and the method comprises the steps: collecting indoor three-dimensional point cloud data through a mobile depth scanning device, and carrying out the preprocessing of the three-dimensional point cloud data; extracting a wall surface component of the functional space; obtaining a function space boundary; door and window parts are extracted and parameterized; carrying out plane segmentation on the global point cloud data to obtain a global plane, and optimizing the geometric andincidence relation of the wall surface part and the door and window part according to a plane structure global optimization algorithm; and outputting the parameterized data to an indoor three-dimensional model with structural semantics. According to the method, based on the mobile depth scanning equipment, the low-precision point cloud and the camera track subjected to semantic marking are fused for rapid three-dimensional reconstruction of the indoor model with structural semantics, and better robustness and reconstruction precision are achieved.

Description

Technical field [0001] The invention relates to the technical field of indoor three-dimensional model construction, in particular to an automatic indoor three-dimensional model reconstruction method and system with structural semantics. Background technique [0002] In recent years, indoor 3D models with structural semantic information have become important data sources for indoor positioning, indoor navigation, building management, virtual reality and other applications. Currently, a large number of researches focus on how to automatically segment and reconstruct indoor parts based on 3D point clouds, and then obtain indoor 3D models with consistent geometry and semantics. Laser scanning is the most widely used technology to obtain high-precision 3D point clouds. This method usually requires setting up different measurement sites for the target environment, and then stitching the 3D point clouds obtained from different sites through algorithms to obtain a global 3D point cloud. ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00G06T7/136G06T7/11G06T5/00G06K9/62
CPCG06T17/00G06T7/11G06T7/136G06T2207/10028G06F18/23G06T5/70Y02T10/40
Inventor 汤圣君文奴王伟玺
Owner SHENZHEN UNIV
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