Monocular space target distance-measuring and angle-measuring method

A space target and angle measurement technology, which is applied in the measurement distance, line-of-sight measurement, measurement angle and other directions, and can solve the problem that the target space distance, angle information, and actual distance cannot be provided.

Active Publication Date: 2013-05-01
HUAZHONG UNIV OF SCI & TECH
View PDF4 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For the geometric size of the known target, the actual distance of the target is relatively far (above 100m), and there is no mark point on the target, and the targ

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
  • Monocular space target distance-measuring and angle-measuring method
  • Monocular space target distance-measuring and angle-measuring method
  • Monocular space target distance-measuring and angle-measuring method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0038] In this example, the main structure of the target body is symmetrical with the long axis and the long and short axes are different, so figure 2 The target structure shown is taken as an example to further describe the present invention in detail. The overall flow chart is as figure 1 As shown, the specific implementation method includes the following steps.

[0039] Step 1: Establish a target feature library for spatial targets

[0040] According to the known...

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 belongs to the crossing field of space technology and computer vision, and discloses a monocular space target distance-measuring and angle-measuring method. The method comprises the following steps: (1) receiving a one-frame image of a space target shot by a single camera, namely a practically shot image Q; (2) pre-treating the practically shot image Q, extracting the space target from the background, thus obtaining a pretreated image S; and then detecting the target according to the pretreated image S, if the space target is completely located in the view field of the camera, entering the step (3), otherwise, entering the step (5); (3) extracting the feature of the space target and recognizing the posture of the space target; (4) computing the three-dimensional center distance Delta p and the posture angle of the space target; and (5) continuing processing until all images are completely processed. The method provided by the invention is simple in process; according to the method provided by the invention, only the three-dimensional structure and size information of the target are needed to be obtained, the target is not needed to be the cooperative target, and any star target is neither needed to be set on the target; and the method provided by the invention has the characteristics of wide distance-measuring range and high precision.

Description

technical field [0001] The invention belongs to the intersecting field of aerospace technology and computer vision, and in particular relates to a method for acquiring two-dimensional centroid distance and attitude angle information of a space object in an observation camera coordinate system. Background technique [0002] With the increasing number of space activities in the world, some space junk produced by abandoned satellites or space collisions will also appear, which has caused certain hidden dangers for the operation of spacecraft in space. In 2010, a U.S. satellite in orbit collided with a Russian satellite in orbit, which not only damaged the satellite but also produced a lot of space junk. In order to avoid space junk and avoid huge economic losses caused by collisions, it is necessary to develop space target measurement technology to obtain the space distance and orientation information of the target. [0003] Visual measurement technology is an emerging technol...

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): G01C3/00G01C1/00
Inventor 张天序朱虎周钢林玉野王华山薛米生朱生国詹丽娟
Owner HUAZHONG UNIV OF SCI & TECH
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap