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

Embedded ranging system based on binocular machine vision

A distance measuring system and machine vision technology, applied in the field of distance measurement, can solve the problems of large influence of surface color, mutual interference of ultrasonic waves, and low applicability

Inactive Publication Date: 2019-07-05
XUZHOU UNIV OF TECH
View PDF1 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the non-contact ranging system, the accuracy of ultrasonic ranging is low, and it is greatly affected by environmental factors such as temperature and wind direction. The surface of the measured object must be horizontal, and multiple ultrasonic waves will interfere with each other and cannot be detected at the same time.
The minimum detection distance of laser ranging is too large, it is difficult to measure objects at close distances, and it is greatly affected by the sun's rays and the surface color of the measured object
Traditional binocular vision distance measurement has low applicability due to the need for PC computing support

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
  • Embedded ranging system based on binocular machine vision
  • Embedded ranging system based on binocular machine vision
  • Embedded ranging system based on binocular machine vision

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The design principle of binocular machine vision

[0043] binocular detection

[0044] The principle of the binocular camera is similar to that of the human eye. The human eye can perceive the distance of an object because the two eyes have certain differences in the images presented by observing the same object. The farther the object is, the smaller the parallax will be; otherwise, the larger the parallax will be. The magnitude of parallax is linearly related to the distance between the eyes.

[0045] According to this principle, binocular detection requires a pair of cameras, called binocular cameras. The binocular camera can be placed anywhere in the environment, so a reference coordinate system should be selected in the environment to describe the position of the binocular camera. In the imaging system of the binocular camera, there are four coordinate systems, which are: Pixel coordinate system (u, v), imaging plane coordinate system (x, y), camera coordinate ...

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 discloses an embedded ranging system based on binocular machine vision, which relates to the technical field of ranging. The embedded ranging system photographs a difference image by means of a binocular camera, transmits the difference image to Raspberry Pi and processes the difference image by adopting an OpenCV computer vision library, displays a ranging numerical value after a user selects a region, and has the advantages of convenient measurement and high applicability.

Description

technical field [0001] The invention relates to the technical field of ranging, in particular to an embedded ranging system based on binocular machine vision. Background technique [0002] In the non-contact ranging system, the accuracy of ultrasonic ranging is low, and it is greatly affected by environmental factors such as temperature and wind direction. The surface of the measured object must be horizontal, and multiple ultrasonic waves will interfere with each other and cannot be detected at the same time. The minimum detection distance of laser ranging is too large, it is difficult to measure objects at a closer distance, and it is greatly affected by the sun's rays and the surface color of the measured object. Traditional binocular vision distance measurement has low applicability due to the need for PC computing support. Contents of the invention [0003] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides an embed...

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): G01C3/18
CPCG01C3/18
Inventor 张逸航滕道祥张宁滕腾杜浩宇徐洪亮
Owner XUZHOU UNIV OF TECH
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