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Building block model construction method and related equipment based on remote sensing image

A remote sensing image and construction method technology, applied in the field of remote sensing image processing, can solve the problems of increasing building height extraction errors and low model accuracy, and achieve the effect of improving extraction accuracy and efficiency

Active Publication Date: 2021-04-27
ZHEJIANG DAHUA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above method is affected by terrain fluctuations. If the terrain fluctuations are large, when using the building shadow information to calculate the building height, the extraction error of the building height will increase, resulting in extremely low accuracy of the constructed model.

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  • Building block model construction method and related equipment based on remote sensing image
  • Building block model construction method and related equipment based on remote sensing image
  • Building block model construction method and related equipment based on remote sensing image

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Embodiment Construction

[0034] The solutions of the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0035] In the following description, for purposes of illustration rather than limitation, specific details, such as specific system architectures, interfaces, and techniques, are set forth in order to provide a thorough understanding of the present application.

[0036] The term "and / or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the character " / " in this article generally indicates that the contextual objects are an "or" relationship. In addition, "many" herein means two or more than two. In addition, the term "at least one" herein means any one of a variety or any combination of at least two of th...

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Abstract

The present application discloses a building block model construction method based on remote sensing images and related equipment. The building block model construction method based on remote sensing images includes: acquiring a visible light remote sensing image, which includes a plurality of buildings; In the image input network model, the relative heights corresponding to the pixel points of the building tops and sides in the visible light remote sensing image and the shooting direction of the visible light remote sensing image are obtained; using the relative height and the shooting direction of the visible light remote sensing image Map the top surface of the building to the bottom position of the building to obtain the bottom surface of the building, wherein the top surface of the building is the same shape as the bottom surface of the building; calculate the visible light remote sensing image by using the relative height corresponding to the pixel points on the top surface of the segmented building The average height of each building in ; build a building block model based on the average height and the base of the building. The above solution improves the construction accuracy of the building block model.

Description

technical field [0001] The present application relates to the technical field of remote sensing image processing, in particular to a building block model construction method and related equipment based on remote sensing images. Background technique [0002] With the popularization and application of satellite remote sensing technology, the cycle of satellite visits to the ground is shortened, and the acquisition of high-resolution remote sensing images is increasing. Using high-resolution remote sensing satellite images to extract urban buildings and obtain information such as the distribution, area, and height of urban buildings plays an important role in evaluating the volume ratio of urban buildings, urban 3D reconstruction, and urban land environment assessment. [0003] In the prior art, the height of the building is usually calculated by extracting the shadow information of the building, and the outline of the building is extracted by image processing, so as to constru...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/34G06F30/27G06F30/13
CPCG06F30/13G06F30/27G06V20/176G06V10/95G06V10/267G06V20/13G06V10/454G06V20/17G06V10/82G06V10/26G06F30/12
Inventor 任宇鹏刘逸颖汪均轶卢维殷俊
Owner ZHEJIANG DAHUA TECH CO LTD