Implementation of MAD and Mean Absolute Deviation based Smoothing Algorithm for Displacement Data in Digital Image Correlation Technique

摘要

This study aims at obtaining smoothed strain fields fromuddigital image correlation technique (DIC), by smoothingudthe displacement fields prior to strain computation. Bothudmedian absolute deviation (MAD) and mean absoluteuddeviation based smoothing algorithms are implemented foruddata smoothing. On implementation of these algorithms,udthe noise levels in the strain fields are found to be reducedudto a greater extent. For executing the whole fieldudsmoothing algorithm, an accurate boundary encodingudalgorithm is also developed.