Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Object-oriented high-resolution remote sensing image impermeable layer extraction method

A technology of remote sensing images and extraction methods, which is applied in image enhancement, image analysis, image data processing, etc. Effect

Inactive Publication Date: 2016-01-06
INST OF ELECTRONICS CHINESE ACAD OF SCI +1
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide an object-oriented high-resolution remote sensing image impermeable layer extraction method to achieve rapid extraction of impermeable areas, effectively solving the problems of too many details of high-resolution images and difficult classification of ground objects. Greatly improved the accuracy of impermeable layer extraction

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Object-oriented high-resolution remote sensing image impermeable layer extraction method
  • Object-oriented high-resolution remote sensing image impermeable layer extraction method
  • Object-oriented high-resolution remote sensing image impermeable layer extraction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0038] According to an embodiment of the present invention, in step S2:

[0039] The formula for calculating the normalized water permeability index of a pixel is:

[0040] Normalized water permeability index = (pixel value in the green band - pixel value in the near-red band) / (pixel value in the green band + pixel value in the near-red band);

[0041] The formula for calculating the normalized impermeability index of a pixel is:

[0042] Normalized impermeability index = (pixel value in the near-red band - pixel value in the red band) / (pixel value in the near-red band + pixel value in the red band).

[0043] The average normalized permeability index for a polygon object is calculated as:

[0044] P g = Σ j ∈ g NDPI j N ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an object-oriented high-resolution remote sensing image impermeable layer extraction method. First of all, by use of an image segmentation technology, object segmentation of a remote sensing image is realized, a homogenous area is segmented into the same polygonal object, a normalization waterproof impermeability index and a normalization permeability index are extracted for the remote sensing image, an NDIPI graph and an NDPI graph are respectively obtained, by use of a permeability determination rule, permeability attribute interpretation of a segmentation object is realized, aggregation of impermeable objects is realized by use of an aggregation technology, and an impermeable layer of the remote sensing image is obtained. According to the invention, an impermeable area is rapidly extracted, the problems of too many terrain details, difficult terrain classification and the like of a high-resolution image are solved, and the extraction precision of the impermeable layer is greatly improved.

Description

technical field [0001] The invention belongs to the field of remote sensing image processing, in particular to an object-oriented high-resolution remote sensing image impermeable layer extraction method. Background technique [0002] As the area with the most population accumulation and the most intense human activities, the city's environment and climate have attracted increasing attention; the expansion of the city has directly changed the state of land cover and land use, and also directly affected the local climate, ecology and environment. Impervious surfaces, as an important index in the evaluation of urbanization process and urbanization rate, are of great significance to the analysis and evaluation of climate, environment and water cycle in urban areas. The impervious layer is considered as an important environmental assessment indicator and is widely used in the comprehensive urban assessment process. [0003] Impervious surfaces are natural or man-made substances ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06T7/00
CPCG06T2207/10032
Inventor 徐成华宋雨娇戴龙魏育成
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com