By Topic

A CMM-based automatic measurement method for surface area

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Jing Le ; Sch. of Machinery & Precision Instrum. Eng., Xi'an Univ. of Technol., China ; Junjie Guo ; Hong Zhu ; Yi Zhou

A method combining coordinates measuring method with digital image technique was introduced to measure area of irregular particular regions. The coordinate measuring machine (CMM) was used to control coordinate positions of charge-coupled device (CCD) camera for recording image of measured region. Image processing technique with image segmentation and mosaic was used to calculate area. Firstly transform coefficient between a pixel in an image and real area in square meter was calibrated by a plane templet. Secondly image distortion due to distance from CCD camera to different locations of curved surface was corrected using the concept of perspective projection in computer graphics. And then curved-surface spread was given as a modification of curved surface effect to promote measurement accuracy. Both the relative error and the repeatability error are less than 0.5% in this method.

Published in:

Intelligent Control and Automation, 2004. WCICA 2004. Fifth World Congress on  (Volume:4 )

Date of Conference:

15-19 June 2004