Related Experiment Video
Updated: Feb 5, 2026

Shrinkage of Dental Composite in Simulated Cavity Measured with Digital Image Correlation
Published on: July 21, 2014
New levels of high angular resolution EBSD performance via inverse compositional Gauss-Newton based digital image
T J Ruggles1, G F Bomarito2, R L Qiu3
1National Institute of Aerospace, 100 Exploration Way, Hampton, VA 23666, USA.
Abstract:
Conventional high angular resolution electron backscatter diffraction (HREBSD) uses cross-correlation to track features between diffraction patterns, which are then related to the relative elastic strain and misorientation between the diffracting volumes of material. This paper adapts inverse compositional Gauss Newton (ICGN) digital image correlation (DIC) to be compatible with HREBSD. ICGN-based works by efficiently tracking not just the shift in features, but also the change in their shape. Modeling a shape change as well as a shift results in greater accuracy. This method, ICGN-based HREBSD, is applied to a simulated data set, and its performance is compared to conventional cross-correlation HREBSD, and cross-correlation HREBSD with remapping. ICGN-based HREBSD is shown to have about half the strain error of the best cross-correlation method with a comparable computation time.
Related Concept Videos
Drug Product Performance: In Vitro–In Vivo Correlation
Correlations
Gauss's Law
Correlation and Causation
Correlation versus Causation
If the dependent variable increases or decreases when the independent variable increases, there is a positive or negative...
Gauss's Law: Problem-Solving
Solution Composition During Acid/Base Titrations
The α0 and α1 values...

