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Statistical method of damaged buildings based on geographic grid

A statistical method and housing technology, applied in geographic information databases, calculations, data processing applications, etc., can solve problems such as poor timeliness

Active Publication Date: 2021-05-11
PEKING UNIV
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Problems solved by technology

Further, based on the unified code, the present invention also provides a statistical method for damaged houses, which aims to quickly code and extract damaged houses by using the earth subdivision grid, and combine relevant data to make statistics on the damage of houses , to solve the problems of poor timeliness in the existing technology

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  • Statistical method of damaged buildings based on geographic grid
  • Statistical method of damaged buildings based on geographic grid

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Embodiment Construction

[0039] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0040] The invention provides a code identification method for damaged houses based on the national unified spatial basic grid, which can effectively organize and manage the damaged houses in remote sensing images, and provides a basis for estimation and statistics of disaster-affected houses.

[0041] The technical solution to this technical problem is to extract some levels of the multi-level earth subdivision grid as the basic grid for the location code of the damaged house, use the spatial position information as the unique identification of the house, design the structure of the coded house for the damaged house, and Each section of coding design specific coding rules.

[0042] The geographical grid-based coding and marking method for damaged houses proposed in the embodiment of the present invention is based on the GeoSOT subdivision and coding schem...

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Abstract

The invention discloses a method for coding and marking a damaged house based on a geographical grid, which adopts a multi-level earth subdivision grid to construct a multi-level coded location of a damaged house; uses the administrative division code and position grid code of the damaged house , to construct the code segment of the spatial location of the damaged house; combine the type, structure and damage level of the damaged house to construct the coded segment of the type of the damaged house, the coded segment of the structure of the damaged house and the coded segment of the damage level of the damaged house; finally according to 4 A coded segment is added with a check code to generate a coded identification of the damaged house. Using the coding mark can quickly code and extract the damaged house, and combine relevant data to make statistics on the disaster situation of the house, so as to solve the problems of poor timeliness in the existing technology.

Description

technical field [0001] The invention belongs to the technical field of geospatial information organization and disaster remote sensing application, and specifically relates to a method for quickly encoding and extracting damaged houses in remote sensing images by using earth subdivision grids, and a method for collecting disaster damage statistics of houses combined with identification data method. Background technique [0002] In recent years, with the gradual maturity of drone aerial photography technology, drones can obtain images of disaster areas after disasters, which solves the problem of not being able to survey disaster areas in time. At present, there are some experimental results of using remote sensing technology to extract collapsed houses from images. However, how to quickly estimate various statistical indicators of disaster-affected houses from remote sensing images needs further research. [0003] After the occurrence of natural disasters, in order to count...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/29G06Q50/26G06F17/18
Inventor 濮国梁程承旗袁越童晓冲陈波林旭东
Owner PEKING UNIV
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