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Live-action three-dimensional reconstruction method and system

A 3D reconstruction and real-scene technology, which is applied in the field of surveying and mapping remote sensing, can solve the problems of high point cloud density, time consumption and computer resources, etc., and achieve the effects of shortening compression time, improving compression efficiency and good compression rate

Active Publication Date: 2020-09-04
江苏康云视觉科技有限公司
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Problems solved by technology

[0004] The present invention provides a real-scene three-dimensional reconstruction method and system to solve the problem that in the prior art, the density of the point cloud obtained after scanning is often very high, which will consume a lot of time and computer resources for subsequent storage, transmission, display and reconstruction. The problem

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  • Live-action three-dimensional reconstruction method and system

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Embodiment Construction

[0041] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. The technical solutions provided by various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0042] see figure 1 , is a real-scene 3D reconstruction method provided by an embodiment of the present invention, the execution subject of the method may be a server, and the method includes:

[0043] ...

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Abstract

The invention discloses a live-action three-dimensional reconstruction method and system. The method comprises the following steps: acquiring an inclined image, performing quality inspection, light and color uniformizing processing, geometric correction, homonymous point matching, block joint adjustment, multi-view image dense matching, DSM generation, true ray correction, tilt model production and image processing on the inclined image to obtain a 3D database, generating ultrahigh-density point cloud based on the inclined image, compressing and simplifying the ultrahigh-density point cloud, performing geometric processing, multi-view matching and triangulation network construction on the compressed and simplified point cloud data, extracting texture features of typical ground features, and performing visualization processing on textures to finally obtain a three-dimensional model. The problem that a large amount of time and computer resources are consumed for subsequent storage, transmission, display and reconstruction due to the fact that the density of point clouds obtained after scanning is large is solved.

Description

technical field [0001] The invention relates to the technical field of surveying and mapping remote sensing, in particular to a method and system for three-dimensional reconstruction of a real scene. Background technique [0002] Three-dimensional reconstruction refers to the establishment of mathematical models suitable for computer representation and processing of three-dimensional objects. The usual 3D reconstruction method is to calibrate the camera first, that is to calculate the relationship between the camera's image coordinate system and the world coordinate system. Then use the information in multiple 2D images to reconstruct 3D information. In the existing real-scene 3D reconstruction methods, the 3D model is usually produced by professional automatic modeling software. This process generally undergoes geometric correction of multi-view images, joint adjustment and other processing processes, and can be calculated to generate image-based superelevation Density poi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/122H04N13/204H04N13/275H04N13/327G06T5/00G06T15/04G06T17/00
CPCH04N13/122H04N13/204H04N13/275H04N13/327G06T17/00G06T15/04G06T5/77
Inventor 陈式金毛迎春
Owner 江苏康云视觉科技有限公司
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