Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Aerial photography image and geographical data splicing method based on ORB feature matching

An aerial image and feature matching technology, which is used in image data processing, image enhancement, image analysis, etc.

Active Publication Date: 2016-10-12
THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
View PDF6 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In recent years, a large number of stitching algorithms based on SIFT / SURF / ORB / Harris detection have been proposed, but many of them only process the image itself

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
  • Aerial photography image and geographical data splicing method based on ORB feature matching
  • Aerial photography image and geographical data splicing method based on ORB feature matching
  • Aerial photography image and geographical data splicing method based on ORB feature matching

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0105] This embodiment includes the following processing steps:

[0106] 1. Read the geographic information and the image into the memory together to obtain the image to be spliced ​​and the matrix storing the latitude and longitude information, and store the geographic information in a 2-dimensional double-precision floating-point matrix. In order to facilitate image processing and use image processing functions, the geographic information matrix is ​​stored in XML structure and stored as a geographic information file with the same name as the image in .xml.gz format. The storage structure of the dual-channel geographic information matrix is ​​as follows: figure 1 As shown, the .xml.gz file is the compressed format of the .xml file, and its xml file structure is as follows:

[0107]

[0108]2. In order to improve the calculation speed of the algorithm, all processor cores can be used for splicing, and the system automatically divides the spliced ​​images into batches, and...

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 brings forward an aerial photography image and geographical data splicing method based on ORB feature matching. The method comprises the following steps: step 1, reading images to be spliced and geographical information; step 2, distributing tasks to processors; step 3, extracting ORB features of the images to be spliced; step 4, performing initialization estimation on parameters of a camera shooting the images to be spliced and solving a rotation matrix; step 5, improving estimation precision by use of bundle adjustment; step 6, performing initial splicing on the images to be spliced; step 7, performing brightness increment compensation on the images after the splicing, and based on multiband fusion of an image pyramid, performing conditional interpolation fusion on the geographical information after the splicing to obtain splicing result images; and step 8, and performing primary integrated splicing fusion on the splicing result images processed through all threads of each processor, and performing merging to obtain a final result image.

Description

technical field [0001] The invention belongs to image and geographic information fusion processing technology, which utilizes the fusion of image splicing technology and geographic data, and particularly relates to an ORB (Oriented FAST and Rotated BRIEF, oriented accelerated segmentation test feature and rotated binary robust independent Basic features) feature matching aerial imagery and geographic data mosaic method. Background technique [0002] Image mosaic technology is a complex of image registration and image fusion. It uses image registration and fusion technology comprehensively. Its purpose is to stitch and fuse multiple images with certain overlapping areas into one image. , seabed detection, satellite remote sensing images and other aspects have a wide range of applications. Among them, image registration mainly includes frequency-domain-based methods, region-based methods and feature-based image registration methods. [0003] The general image stitching techn...

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 Applications(China)
IPC IPC(8): G06T3/40G06T5/50G06T7/00G06K9/46
CPCG06T3/4038G06T5/50G06T2207/20221G06T2207/10032G06V10/462
Inventor 梁中岩郭乔进许建程晓光周鹏飞刘婧婷祁骏胡杰陈文明孟剑萍
Owner THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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