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Building extraction method and system based on three-dimensional remote sensing image

A technology of remote sensing image and extraction method, applied in the field of remote sensing imaging, can solve the problem of low precision

Inactive Publication Date: 2019-10-22
武汉易科空间信息技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0043] Existing remote sensing imaging technology is not very accurate in extracting buildings in images

Method used

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  • Building extraction method and system based on three-dimensional remote sensing image

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Embodiment Construction

[0084] Such as figure 1 Shown, a kind of building extraction method based on three-dimensional remote sensing image, it comprises the following steps:

[0085] S1. Obtain the digital surface model through matching, and complete the identification and detection of buildings through the elevation information in the digital surface model;

[0086] S2. Complete the establishment of the two-dimensional model of the top of the building based on the complementarity of the image information of the left and right image pairs of the stereoscopic image pair of the building;

[0087] S3. Complete the generation of the three-dimensional model of the building through the two-dimensional model of the top of the building.

[0088] In the building extraction method based on stereoscopic remote sensing images described in the present invention,

[0089] Said step S1 comprises:

[0090] Obtain the left image and right image information in the remote sensing image;

[0091] The digital surfac...

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Abstract

The invention discloses a building extraction method based on a three-dimensional remote sensing image, and the method comprises the following steps: S1, obtaining a digital surface model through matching, and completing the recognition and detection of a building through the elevation information in the digital surface model; S2, completing the building of a building top two-dimensional model based on the complementarity of the left and right image pair image information of the three-dimensional image pair of the building; and S3, completing the generation of a building three-dimensional model through the building top two-dimensional model.

Description

technical field [0001] The invention relates to the technical field of remote sensing imaging, in particular to a building extraction method and system based on stereo remote sensing images. Background technique [0002] Remote sensing technology refers to receiving electromagnetic wave information from various surface objects on the earth's surface from high altitude or outer space, and by scanning, photographing, transmitting and processing these information, so as to carry out remote control and measurement of various surface objects and phenomena. and identification of modern integrated technologies. [0003] The most basic thing of remote sensing technology is actually remote sensing images. Whether you are designing sensors or focusing on remote sensing applications, you are working around images. [0004] Metrics [0005] Spatial resolution—refers to the size and size of the smallest unit that can be distinguished in detail on a remote sensing image, and is an index...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/32G06K9/46G06T7/155G06T17/05G06T17/10
CPCG06T7/155G06T17/10G06T17/05G06T2207/10036G06V20/176G06V10/25G06V10/44
Inventor 邹松柏
Owner 武汉易科空间信息技术股份有限公司