Robustness analysis of digital image spearman's rho correlation

DOI

10.2991/aest-16.2016.29How to use a DOI?

Keywords

digital image correlation; salt-and-pepper noise; spearman's rho; deformation field distribution.

Abstract

The presence of salt-and-pepper noise in speckle image prevents the precise measurement of deformation and displacement fields in the traditional digital image correlation (DIC) technique. Spearman's rho (SR) has been introduced as a kernel correlation function in the DIC. The robustness of SR is quantitatively analyzed in following two cases: one is speckle images contaminated by same distribution salt-and-pepper noise, and the other is contaminated by random distribution noise. Theoretical and simulation results suggest that the DIC using SR is robust to about 10% salt-and-pepper noise. SR is suitable for measurement deformation and displacement fields.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Wanghua Huang
AU  - Qinruo Wang
AU  - Weichao Xu
AU  - Yanzhou Zhou
PY  - 2016/11
DA  - 2016/11
TI  - Robustness analysis of digital image spearman's rho correlation
BT  - Proceedings of the 2016 International Conference on Advanced Electronic Science and Technology (AEST 2016)
PB  - Atlantis Press
SP  - 223
EP  - 228
SN  - 1951-6851
UR  - https://doi.org/10.2991/aest-16.2016.29
DO  - 10.2991/aest-16.2016.29
ID  - Huang2016/11
ER  -