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

Triangular sailboard support frame identification method applicable to space non-cooperative target

A non-cooperative target and identification method technology, which is applied in the field of automatic identification of non-cooperative satellite triangular sailboard brackets, can solve the problems of low autonomy and system instability, and achieve less time-consuming, high positioning accuracy, and anti-corrosion Noise-capable effect

Active Publication Date: 2014-09-10
NORTHWESTERN POLYTECHNICAL UNIV
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is greatly affected by transmission delay and transmission reliability, and the whole system will be unstable when the delay is large; moreover, it is not "autonomous" because it requires the direct participation of operators

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
  • Triangular sailboard support frame identification method applicable to space non-cooperative target
  • Triangular sailboard support frame identification method applicable to space non-cooperative target
  • Triangular sailboard support frame identification method applicable to space non-cooperative target

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that the described embodiments are only intended to facilitate the understanding of the present invention, and do not limit it in any way.

[0037] Such as figure 1 As shown, the triangular area automatic recognition method provided by the embodiment of the present invention includes:

[0038] (1) Image collection: use the camera to collect the target image;

[0039] (2) Image filtering: Perform median filtering and Wiener filtering on the collected images to eliminate noise interference and obtain a smooth target image;

[0040] (3) Edge detection: edge detection is performed on the two images respectively to obtain edge feature information;

[0041] (4) Straight line extraction: adopt directional Hough transform to carry out straight line extraction to the image after edge detection, obtain each straight line information including each straight ...

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 a triangular sailboard support frame identification method applicable to a space non-cooperative target. According to the method, on the basis of geometrical characteristic differences of a target connecting frame and a background, a boundary straight line section on a target object is used as an identification basis, and the monocular vision is utilized for identifying a non-cooperative target triangular sailboard support frame. The method concretely comprises the following steps that: 1, a target image is collected and filtered, then, marginal points are extracted, and a marginal image I3 is obtained; 2, the directional Hough conversion is adopted for carrying out linear extraction on the image I3 obtained in the first step, and each straight line information including each straight line of the triangular support frame is obtained; 3, from all straight line information extracted in the second step, a dynamic planning searching algorithm is adopted for identifying straight lines corresponding to the triangular sailboard support frame; and 4, the vertexes of a triangle are calculated by utilizing the straight lines corresponding to the triangular support frame identified in the third step.

Description

technical field [0001] The invention belongs to the field of image processing and computer vision, and in particular relates to an automatic recognition method for a non-cooperative satellite triangular sailboard support mounted on a space tether robot visual perception system. Background technique [0002] The space tethered robot system consists of "space tethered robot + space tether + space platform", which has the characteristics of safety, flexibility, and long operating distance. On-orbit services such as auxiliary assembly of on-orbit space stations have become one of the research hotspots in the field of space manipulation technology. This new type of miniature intelligent robot can approach the target autonomously in space. During the approaching process, the binocular vision measurement system carried by itself is used to detect, identify, track and measure the target in real time. The most critical step is how to quickly and automatically identify the region of...

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): G06K9/54
Inventor 黄攀峰蔡佳王东科台健生龚思怡
Owner NORTHWESTERN POLYTECHNICAL UNIV
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