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

Double-sensor laser visual measuring system calibrating method

A three-dimensional measurement and dual-sensor technology, applied in the field of measurement, can solve problems such as low calibration efficiency and complicated operation process, and achieve high calibration accuracy and measurement accuracy

Inactive Publication Date: 2007-06-06
HUANGSHI BANGKE TECH CO LTD
View PDF0 Cites 32 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common point of the above two methods is that the calibration of the measurement system relies on three-dimensional measurement equipment and special auxiliary devices, the operation process is complicated, and the calibration efficiency is low.

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
  • Double-sensor laser visual measuring system calibrating method
  • Double-sensor laser visual measuring system calibrating method
  • Double-sensor laser visual measuring system calibrating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0078] Two Mintron MS368P CCD cameras, Japanese Seiko lenses with focal lengths of 12mm and 16mm, and two line structured light projectors form a dual-sensor laser vision three-dimensional measurement system. The working distance of the sensor is within 600mm.

[0079] According to the steps described above, the model parameters of the dual-sensor laser vision three-dimensional measurement system were calibrated using the plane target shown in Figure 1. Within the measurement space range of each sensor, move 5 positions randomly, and use the image acquired by the CCD camera to extract feature points to calibrate the internal parameters of the camera. Turn on the power of the laser projector, ensure that the projected light strips pass through the characteristic area of ​​the target, move three positions randomly to obtain an image, and use the method described above to obtain control points on the light plane to calibrate the two light planes. The plane target is placed in the com...

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

This invention disclosed a calibration technique for three-dimensional measure system. It can calibrate all the systematic model parameters in bi-sensor laser vision by using two-dimension plane drone, including the inner parameters of camera, camera coordinate system, etc. The advantages are as follows: no need for costly assistant equipment; high calibration precision; the process is brief and efficiency is high.

Description

Technical field [0001] The invention belongs to the field of measurement technology and relates to an improvement of a method for calibrating a model parameter of a dual-sensor laser vision three-dimensional measurement system. Background technique [0002] Laser vision measurement is an organic combination of laser technology and computer vision technology. It is one of the high and new technologies with development potential in the field of space three-dimensional precision measurement. It is used in the processing and manufacturing industries such as body size and mold profile measurement, as well as in the fields of face recognition. It has been well applied. According to the laser projection mode, laser vision 3D measurement can be divided into single-line structured light, multi-line structured light and grid structured light. [0003] A single structured optical vision sensor can constitute a single-sensor laser vision measurement system to complete the three-dimensional 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
IPC IPC(8): G01B11/00G01B11/02G01B11/24H04N17/00
Inventor 周富强张广军
Owner HUANGSHI BANGKE TECH CO LTD
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