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An Indoor Scene Reconstruction Method Based on Component Extraction

A technology of indoor scenes and basic components, applied in interdisciplinary fields, can solve problems such as inability to accurately complete scene reconstruction, lack of unilateral measured data and reconstruct objects, and achieve the effect of ensuring shape integrity and accuracy

Active Publication Date: 2021-11-16
XIAN UNIV OF TECH
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Problems solved by technology

The reconstruction results depend on the size of the model library and the selection of feature points during the matching process. For the single-sided measured point cloud data, the discrete point cloud does not contain topological information, and there are a large number of missing reconstruction objects in the single-sided measured data. The existing model-based The matching scene reconstruction method cannot complete the scene reconstruction accurately

Method used

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  • An Indoor Scene Reconstruction Method Based on Component Extraction
  • An Indoor Scene Reconstruction Method Based on Component Extraction
  • An Indoor Scene Reconstruction Method Based on Component Extraction

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Embodiment Construction

[0124] The present invention will be described in detail below in combination with specific embodiments.

[0125] The present invention is an indoor scene reconstruction method based on component extraction, such as figure 1 As shown, the specific steps are as follows:

[0126] Step 1. Perform rough detection on the indoor scene, extract each linear element in the indoor scene as a linear dataset; extract each planar element in the indoor scene as a planar dataset; extract each cylindrical element in the indoor scene as Cylindrical dataset.

[0127] Step 1 is specifically implemented according to the following steps,

[0128] Step 1.1, the point cloud data in the given indoor scene is D, D={p i |i=1,2,...,n}, p i is a three-dimensional discrete point, i is a natural number not equal to 0, n is a natural number, p i ={x i ,y i ,z i}, where x i 、y i ,z i Respectively represent p i each coordinate value of;

[0129] Step 1.2, search p i The nearest neighbor point p,...

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Abstract

The invention discloses an indoor scene reconstruction method based on component extraction, which uses shape detection and plane decomposition methods to extract basic shape components in indoor scenes, and uses boundary detection methods and directed bounding box based methods to realize indoor reconstruction based on point cloud data. For the fitting of basic shape components in the scene, select the largest component in the basic shape component set as the reference component, find the best composite component centered on the reference component, match the composite component with the standard model of the standard model library one by one, and find the highest matching degree Combination of components, so as to identify the object composed of the best combination of components, and replace it with the corresponding standard model in the standard model library, and finally complete the reconstruction of the indoor scene. The invention ensures the accuracy of scene object component extraction, the shape integrity of scene objects, and better guarantees the accuracy of indoor scene reconstruction.

Description

technical field [0001] The invention belongs to the interdisciplinary technical field of combining computer graphics and virtual reality, and in particular relates to an indoor scene reconstruction method based on component extraction. Background technique [0002] 3D scene analysis and reconstruction is an important aspect of virtual reality and 3D data scene visualization. 3D scene reconstruction has gradually entered people's daily life, such as in autonomous navigation, reverse engineering, simulation experiments, video games and medical fields. widely used. [0003] Traditional scene reconstruction technology pays more attention to the integrity of the reconstruction results, but as the application of scene-based reconstruction technology has penetrated into all aspects of people's daily life, the ornamental requirements for scene reconstruction results are getting higher and higher, and the reconstruction results are required to be closer to the real scene , if it can...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/50G06K9/00G06K9/62
CPCG06T7/50G06T2207/10028G06V20/10G06F18/2321
Inventor 宁小娟李璠王映辉
Owner XIAN UNIV OF TECH
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