Cart (Loading....) | Create Account
Close category search window

3D shape measurements using stereo image scanner with three color light sources

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
$31 $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

2 Author(s)
Ukida, H. ; Dept. of Mech. Eng., Tokushima Univ., Japan ; Takamatsu, S.

In this paper, we propose a new measuring system using a "stereo image scanner" to measure a 3D colored object shape from its scanned image. This image scanner has two CCD image sensors and three color (red, green, and blue) light sources. We also propose the shape measuring method combining the binocular stereo and photometric stereo methods. An object shape can be primarily measured by photometric stereo method using three color light sources. Under these light sources, however, the object surface color varies with its shape, hence the object which has some color regions on its surface could not be measured by only a photometric stereo method. In order to measure a various colored object shape, first, we divide the scanned image into color regions using edge information. Next we measure the depth of edge points by a binocular stereo method using two CCD sensors, and estimate precise color (albedo) parameters at each region using depth data. Finally, by using albedo parameters we apply a photometric stereo method to measure the object shape precisely. In experiments, we demonstrate the measuring of a cylindrical object shape whose surface has many color regions, and show the effectiveness of our proposed method.

Published in:

Instrumentation and Measurement Technology Conference, 2004. IMTC 04. Proceedings of the 21st IEEE  (Volume:1 )

Date of Conference:

18-20 May 2004

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.