Live-action three-dimensional refined modeling method and system

A modeling method and refined technology, which are applied in the field of real 3D refined modeling methods and systems, can solve the problems of difficulty in reflecting detailed information, insufficient low-level definition, and difficulty in 3D reconstruction, so as to improve the clarity and computational efficiency. The effect of small amount and improved image quality

Pending Publication Date: 2021-07-23
京华联科(云南)互联科技有限公司
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Problems solved by technology

[0002] For the 3D reconstruction of high-rise buildings, in order to ensure the integrity of the image, most of the images are taken from above, which often has the problem of insufficient clarity of the lower layers
[0003] 3D reconstruction is more difficult, especially the embodiment of detailed information is more difficult

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  • Live-action three-dimensional refined modeling method and system
  • Live-action three-dimensional refined modeling method and system

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Embodiment Construction

[0044] 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 combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0045] On the one hand, it provides a real-scene 3D refined modeling method, combined with figure 1 Including the following steps:

[0046] S1 Input multiple images of different heights and angles of the target building taken by the drone; input the position and attitude data of each image;

[0047] When shooting with a drone, the distance from the building should be at least 20m. The different heights include the heig...

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Abstract

The invention relates to a live-action three-dimensional refined modeling method and system. The method comprises the following steps: inputting a plurality of images of a target building shot by an unmanned aerial vehicle at different heights and different angles; inputting shooting position and attitude data of each image; based on the image covering the roof of the target building, performing three-dimensional modeling by adopting a triangular analysis method; performing grid division on the three-dimensional model; repeatedly adopting images with lower heights to extract side wall and ground images of the building, and extracting texture features; constructing a corresponding relation with the grids, mapping the texture features to the grids of the side wall and the ground of the three-dimensional image of the target building, and carrying out interpolation iteration; and performing smooth filtering on the image after interpolation iteration to complete three-dimensional reconstruction. According to the method, the images of different heights are shot for the target building, and the texture features are extracted through the images of different heights for iteration, so that the texture features of the images of different heights are reflected to the three-dimensional model, detail information of the three-dimensional model is supplemented, and the definition is improved.

Description

technical field [0001] The invention relates to the technical field of three-dimensional view modeling, in particular to a real-scene three-dimensional refined modeling method and system. Background technique [0002] For the 3D reconstruction of high-rise buildings, in order to ensure the integrity of the image, the overhead image is often used, which often has the problem of insufficient clarity of the lower layers. [0003] 3D reconstruction is more difficult, especially the embodiment of detailed information is more difficult. Contents of the invention [0004] Aiming at the problems existing in the prior art, the present invention provides a real-scene three-dimensional refined modeling method and system, which adopts the triangular analysis method to carry out three-dimensional modeling, and iterates through extracting texture features from images of different heights, and realizes refined modeling . [0005] In order to achieve the above object, the present invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/10G06T17/20G06T15/04G06T3/40
CPCG06T3/4053G06T15/04G06T17/10G06T17/205
Inventor 张跃季铮王云昆张浩庄庆治杜娟
Owner 京华联科(云南)互联科技有限公司
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