A method for estimating the volume of a building

A building and volume technology, applied in the field of building volume estimation, can solve problems affecting grid reconstruction and volume estimation, errors, 3D reconstruction failure, etc., and achieve the effect of accurate and rapid volume estimation

Pending Publication Date: 2018-12-18
HEBEI ZHUODA BUILDING MATERIALS RES INST CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, the discreteness, disorder, and unpredictability of buildings make it difficult to find reasonable rules for grid reconstruction directly using these data, which will cause huge errors and even lead to the failure of 3D reconstruction, which seriously affects the network quality. The effect of lattice reconstruction and volume estimation

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  • A method for estimating the volume of a building

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Embodiment Construction

[0018] In order to better understand the present invention, the method of the present invention will be further described below with reference to the description of the embodiments in conjunction with the accompanying drawings.

[0019] In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details. In the embodiments, well-known methods, procedures, components have not been described in detail so as not to unnecessarily obscure the embodiments.

[0020] see figure 1 As shown, the volume estimation method of a kind of building that the present invention proposes is characterized in that, comprises the following steps:

[0021] Step 1: Carry out aerial photography sampling and on-the-spot sampling to the building, acquire multiple images of the building, and ...

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Abstract

The invention provides a volume estimation method of a building, which comprises the following steps of: carrying out aerial photography sampling and field sampling on the building to obtain a plurality of images of the building, and image preprocessing is carried out on the plurality of images; obtaining the original points, original edges and original faces of the buildings after image preprocessing, finding out the corresponding relations of the same points, edges and faces in any two images, and matching the obtained image sequences; calculating the actual distance between all the specificpoints in the three-dimensional model; calculating the volume of a building. The invention adds relative constraint to the reconstructed characteristic points according to the dispersion and disorderof the points, lines and planes of the building, obtains the ratio of the building in the relative coordinate system to the actual size of the building as the scale information, thereby completing the purpose of accurate and rapid volume estimation by utilizing the three-dimensional reconstruction of the building.

Description

technical field [0001] The invention relates to the field of three-dimensional images, in particular to a method for estimating the volume of a building. Background technique [0002] The objective world is three-dimensional in space, while the images acquired by existing image acquisition devices are two-dimensional. Although the image contains some form of three-dimensional spatial information, which includes the geometric relationship between the sides of the object, the parallax relationship between the two images, the corresponding relationship between the feature points in the two images, and the object contour information, etc. In order to use these information in the computer for further application processing, it is necessary to use 3D reconstruction technology to extract and express these 3D information reasonably from 2D images. The application of image-based 3D reconstruction technology in land surveying has positive and practical significance. It has advantages...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/55G06T7/60G06T17/20
CPCG06T7/55G06T7/60G06T17/20G06T2207/10004G06T2207/30181
Inventor 杨卓舒纪勇孟宪娴
Owner HEBEI ZHUODA BUILDING MATERIALS RES INST CO LTD
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