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

A Uniform Grid Structure to Speed Up Example-Based Photometric Stereo

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

3 Author(s)
Saracchini, R.F.V. ; Inst. of Comput., State Univ. of Campinas, Campinas, Brazil ; Stolfi, J. ; da Gama Leitao, H.C.

In this paper, we describe a data structure and an algorithm to accelerate the table lookup step in example-based multiimage photometric stereo. In that step, one must find a pixel of a reference object, of known shape and color, whose appearance under different illumination fields is similar to that of a given scene pixel. This search reduces to finding the closest match to a given -vector in a table with a thousand or more -vectors. Our method is faster than previously known solutions for this problem but, unlike some of them, is exact, i.e., always yields the best matching entry in the table, and does not assume point-like sources. Our solution exploits the fact that the table is in fact a fairly flat 2-D manifold in -dimensional space so that the search can be efficiently solved with a uniform 2-D grid structure.

Published in:

Image Processing, IEEE Transactions on  (Volume:20 ,  Issue: 12 )

Date of Publication:

Dec. 2011

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.