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Three-dimensional environment model reconfiguration method, equipment and system based on image recognition

An environment model and image recognition technology, applied in image analysis, image data processing, 3D modeling, etc., can solve problems such as lagging progress, inability to accurately reflect construction status and progress, and complex construction site environment

Active Publication Date: 2017-10-13
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0002] In recent years, with the rapid development of my country's economy, the scale of construction projects has continued to expand, and the progress of construction will directly affect the project's duration and unit economic benefits. At present, the main way of management of construction progress in my country is on-site inspection and supervision by managers. Understanding the construction progress cannot accurately reflect the construction status and progress, and it is not easy to adjust the construction progress in time. Moreover, the construction site environment is complex, and on-site supervision is only carried out by manpower, which makes it difficult to grasp certain details in a timely manner, resulting in delays in progress, budget overruns, etc. impact project

Method used

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  • Three-dimensional environment model reconfiguration method, equipment and system based on image recognition

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Embodiment Construction

[0083] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0084] The computer vision-based three-dimensional environment reconstruction algorithm interpretation and three-dimensional environment reconstruction steps involved in the progress management method are as follows:

[0085] 1. Image feature extraction and matching

[0086] Find out the feature points and their corresponding relationship between two adjacent images from a series of intercepted...

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Abstract

The invention discloses a three-dimensional environment model reconfiguration method, equipment and system based on image recognition. The method comprises the following steps: extracting and matching feature points, and carrying out back projection by using the feature points to obtain pixel information; and carrying out stereo matching and iterative updating according to the pixel information. The accuracy of reconfiguration of a three-dimensional scene is improved; and visual and accurate reference is provided for follow-up construction management. The equipment runs on the basis of the method, in a whole construction process, modeling is implemented in real time by computer vision three-dimensional reconfiguration, and a construction scene is recovered visually and clearly. According to the system, images are acquired through a helmet, a camera is arranged on the helmet, terminal equipment is arranged on the background, and project management personnel who do not need to enter a construction site can clearly know the construction process of the site. By the management personnel, a three-dimensional reconfiguration model can be compared with an expected planning model of an expected construction process in BIM in real time, deviation in implementation is discovered in time, and the management efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the field of project construction progress management, and more specifically relates to a three-dimensional environment reconstruction method, device and system based on image recognition. Background technique [0002] In recent years, with the rapid development of my country's economy, the scale of construction projects has continued to expand. The progress of construction will directly affect the duration of the project and the economic benefits of the unit. At present, the main way of management of construction progress in my country is on-site inspection and supervision by managers. Understanding the construction progress cannot accurately reflect the construction status and progress, and it is not easy to adjust the construction progress in time. Moreover, the construction site environment is complex, and on-site supervision is only carried out by manpower, which makes it difficult to grasp certain details in a timely manner...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06T7/33G06T17/00
CPCG06F30/13G06T7/337G06T17/00
Inventor 周迎管涛雷蕾骆汉宾
Owner HUAZHONG UNIV OF SCI & TECH
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