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

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

Active Publication Date: 2020-12-22
ZHEJIANG DAHUA TECH CO LTD
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  • Abstract
  • Description
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  • 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 object block model construction method based on remote sensing image and related equipment
  • Building object block model construction method based on remote sensing image and related equipment
  • Building object block model construction method based on remote sensing image and related equipment

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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 invention discloses a building object block model construction method based on a remote sensing image and related equipment, the building object block model construction method based on the remotesensing image comprises the steps: acquiring a visible light remote sensing image, wherein the visible light remote sensing image comprises multiple buildings; inputting the visible light remote sensing image into a network model to obtain a plurality of segmented building top surfaces, side surfaces, relative heights corresponding to building pixel points in the visible light remote sensing image and a shooting direction of the visible light remote sensing image; mapping the top surface of the building to the bottom position of the building by using the relative height and the shooting direction of the visible light remote sensing image to obtain the bottom surface of the building, the top surface of the building and the bottom surface of the building having the same shape; calculating the average height of each building in the visible light remote sensing image by utilizing the relative height corresponding to the segmented building top surface pixel points; and building a buildingobject block model based on the average height and the building bottom surface. According to the scheme, the construction accuracy of the building object block model is improved.

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 Applications(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