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Flood inundation information extraction method and device, electronic equipment and storage medium

An information extraction and flood technology, applied in the field of remote sensing image processing, can solve the problem of lack of multi-dimensional flood element extraction

Active Publication Date: 2022-01-11
BEIJING AEROSPACE HONGTU INFORMATION TECH
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Problems solved by technology

[0003] In view of this, this application provides a flood submersion information extraction method, device, electronic equipment and storage medium, which can solve the technical problem of lack of multi-dimensional flood element extraction in the prior art

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  • Flood inundation information extraction method and device, electronic equipment and storage medium
  • Flood inundation information extraction method and device, electronic equipment and storage medium

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Embodiment Construction

[0068] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0069] Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art w...

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Abstract

The invention provides a flood inundation information extraction method and device, electronic equipment and a storage medium, and belongs to the technical field of remote sensing image processing. The method comprises the steps of: processing an obtained dual-polarization dual-time-phase SAR image, and obtaining a pre-disaster SAR image and a post-disaster SAR image; respectively processing the pre-disaster SAR image and the post-disaster SAR image through a pre-trained water body recognition model to obtain a pre-disaster water body recognition result and a post-disaster water body recognition result; making a difference between the pre-disaster water body recognition result and the post-disaster water body recognition result to obtain a flood submerging area; obtaining a water depth result of the flood inundation area according to the DEM data of the flood inundation area; processing the post-disaster water body recognition result, and obtaining a post-disaster water surface wind condition result; and comprehensively superposing the post-disaster water body recognition result, the water depth result of the flood inundation area and the post-disaster water surface wind condition result to obtain a flood emergency map. According to the method, multi-dimensional disaster information of the post-disaster water body area, the submerging depth and the post-disaster water body wind field can be accurately provided.

Description

technical field [0001] The present application relates to the technical field of remote sensing image processing, in particular to a flood information extraction method, device, electronic equipment and storage medium. Background technique [0002] At present, most of the water body recognition methods in SAR images start from a single dimension such as single-temporal single-polarization SAR, multi-source remote sensing data water body extraction, and post-disaster submerged area change detection. They solve the water body extraction problem to a certain extent at the algorithm level, but few Combined with the characteristics of flood occurrence, considering the extraction of flood submergence information from dual-temporal and multi-polarization SAR data, the SAR time phase, polarization scattering information and multi-dimensional flood element extraction dimensions are not fully mined, which has the problem of low degree of SAR information mining. Contents of the invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06V20/13G06V10/75
CPCG06F18/22
Inventor 王宇翔郭世波路聚峰沈均平马靓婷邹舒畅张攀
Owner BEIJING AEROSPACE HONGTU INFORMATION TECH
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