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A method and device for extracting remote sensing information of flood submerged range based on tasseled cap transformation

A technology of tasseled cap transformation and submerged range, applied in the field of remote sensing image processing, can solve problems such as the failure of water body information extraction methods, and achieve the effects of improving information extraction accuracy, clear boundaries, and simple processing flow

Active Publication Date: 2021-06-08
舟山市普陀区启迪海洋科技产业研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After the flood, the increase of suspended sediment in the water caused changes in the spectral characteristics of the water body, which led to the failure of traditional water body information extraction methods

Method used

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  • A method and device for extracting remote sensing information of flood submerged range based on tasseled cap transformation
  • A method and device for extracting remote sensing information of flood submerged range based on tasseled cap transformation
  • A method and device for extracting remote sensing information of flood submerged range based on tasseled cap transformation

Examples

Experimental program
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Embodiment 1

[0034] Such as Figure 1-2 As shown, a device for extracting remote sensing information of flood submergence range based on tasseled cap transformation, including:

[0035] Data input and output module: used for input and output of raster format and vector format data;

[0036] Remote sensing image preprocessing module: used to realize radiometric calibration and atmospheric correction operations;

[0037] Tasseled cap transformation module: used to realize the tasseled cap transformation of Landsat5, Landsat7, Landsat8, IKONOS and other satellites;

[0038] Water body information extraction module: used to realize rough extraction of water body information and post-processing of water body information extraction;

[0039] Flood submergence range extraction module: used to realize the spatial overlay analysis of the water body information extraction results of remote sensing images before and after the flood. The above device first performs radiation calibration and atmosphe...

Embodiment 2

[0080] In the present embodiment, Yueyang City and its vicinity are selected as the research area in conjunction with the accompanying drawings to make a detailed description of the progress of the technical scheme of the present invention:

[0081] The research area of ​​this example is: Yueyang City, Yueyang City is located in the northeast of Hunan Province, the geographical range is 28°25′33″N-29°51′00″N, 112°18′31″E-114°09′ 06″E (such as image 3 shown). Yueyang City is surrounded by mountains on both sides, sloping from southeast to northwest, with hilly areas in the southeast, Dongting Lake plain in the northwest, and transitional shallow hilly areas around the lake in the middle. Mountainous areas account for 14.6% of the city, hilly areas account for 41.2%, and plains account for 27%. , the water surface accounts for 17.2%. Yueyang City has a well-developed water system, dotted with lakes, and a network of rivers. There are 165 large and small lakes, and more than 2...

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Abstract

The invention discloses a remote sensing information extraction method and device for flood submersion range based on tasseled cap transformation, which belongs to the technical field of remote sensing image processing. The extraction device includes: a data input and output module: used for input and output of raster format and vector format data ;Remote sensing image preprocessing module: used to realize radiometric calibration and atmospheric correction; tasseled cap transformation module: used to realize tasseled cap transformation of Landsat5, Landsat7, Landsat8, IKONOS and other satellites; water body information extraction module: used to realize water body information Rough extraction, post-processing of water body information extraction; flood submerged range extraction module: used to realize the spatial superposition analysis of the water body information extraction results of remote sensing images before and after the flood, the invention can improve the accuracy of information extraction and ensure the accuracy of the flood submerged range identification results and reliability, and the processing flow is simple, easy to operate, and has a high degree of automation.

Description

technical field [0001] The invention belongs to the technical field of remote sensing image processing, in particular to a method and device for extracting remote sensing information of flood submerged range based on tasseled cap transformation. Background technique [0002] Floods have always had a significant impact on human survival and development, and the occurrence of a large flood often brings serious casualties and property losses to people. Understanding the extent of flood inundation is of great significance not only for the loss assessment after the disaster, but also for the comprehensive management of the watershed. [0003] Traditional flood disaster loss assessments often use on-the-spot surveys and grassroots reporting methods, which have problems such as slow speed, long cycle, and poor data accuracy, and post-disaster traffic is affected, especially disaster losses in some unreachable areas. up the challenge. Remote sensing technology has the characterist...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/46
CPCG06V10/50G06V10/462
Inventor 陈超傅姣琪
Owner 舟山市普陀区启迪海洋科技产业研究院