Unlock instant, AI-driven research and patent intelligence for your innovation.

Matching method between sar image and visible light image based on improved feature extraction and game theory hypergraph

A feature extraction and matching method technology, which is applied in the field of image processing, can solve the problems such as the image is not clear enough, and achieve the effect of improving the correct rate and accuracy of matching, increasing the correct rate, and good adaptability

Active Publication Date: 2022-08-05
HOHAI UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And because of the different imaging principles of SAR images and visible light images, there is a big difference in grayscale and resolution, and SAR images are often affected by coherent speckle noise, so the images are not clear enough

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
  • Matching method between sar image and visible light image based on improved feature extraction and game theory hypergraph
  • Matching method between sar image and visible light image based on improved feature extraction and game theory hypergraph
  • Matching method between sar image and visible light image based on improved feature extraction and game theory hypergraph

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0115] The technical solutions and beneficial effects of the present invention will be described in detail below with reference to the accompanying drawings.

[0116] like figure 1 As shown, the present invention provides a method for matching a SAR image and a visible light image based on improved feature extraction and game theory hypergraph. First, for the SAR image and the visible light image to be matched, before extracting features, the SAR image and the visible light image need to be matched. , for preprocessing. Secondly, for the SAR image to be matched, the improved ROEWA algorithm is used to extract the contour of the SAR image; for the visible light image to be matched, the SOBEL operator is used to convolve the visible light image to extract the contour. Third, for the SAR image and the visible light image to be matched, after the contour is extracted from the image, CSS corner points are extracted as feature points on the contour. Fourth, use the CPD algorithm t...

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 present invention discloses a SAR image and visible light image matching method based on improved feature extraction and gaming theory, including: first, pre -processing SAR images, extracting the contour of SAR images, and extracting the CSS angle point on the contour as the contour as the CSS angle point as the point as the contour as the point as a CSS angle point as the ongoing point.Feature points.For visible light images, the image is also pre -processed in advance, extract the contour, and at the same time extract the CSS angle point on the contour; then, use the CPD algorithm to match the contour point around the corner point.Using the game -based ultra -map matching algorithm, the matching problem is converted into a game problem, calculated to reach the Nash balance point, and eliminates the error matching point pair.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a SAR image and visible light image matching method based on improved feature extraction and game theory hypergraph. Background technique [0002] Since the development of Synthetic Aperture Radar (SAR) technology, it has received continuous attention from all walks of life. Because of its strong penetration ability and the advantages of all-weather and all-weather, SAR has been widely used in military reconnaissance, weather forecasting, aerospace and other fields. . Since SAR is sensitive to metal objects and the surface, it has obvious texture features when imaging, which can be used to explore mineral resources and detect topographic changes. In addition to detecting objects above the ground, SAR images can also penetrate the surface to detect targets underground. However, SAR images also have many defects. The lack of spectrum results in insufficient c...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G06V20/13G06V10/44G06V10/75G06V10/82G06K9/62G06N3/04
CPCG06V20/13G06V10/443G06V10/752G06N3/045
Inventor 王鑫翟华琼宁晨吕国芳石爱业
Owner HOHAI UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com