Two-dimensional Digital Image Correlation (DIC) is widely accepted and commonly used in the field of experimental mechanics as a practical and effective tool for quantitative in-plane deformation measurement of an object surface. Cross-Correlation and Least Square Matching are the two most popular techniques for the extraction of image correspondences based on similarities between grey values. A comparative analysis between these two approaches is presented performing a simple test on a traditional brick for construction mounted on a micrometric sledge. Performance analysis in cases where good image data cannot be assumed (e.g. being the specimen surface not properly patterned and/or the camera used gives low quality images) are considered in particular.
|Titolo:||Comparative Analysis of Digital Image Correlation Techniques for In-plane Displacement Measurements|
|Data di pubblicazione:||2012|
|Appare nelle tipologie:||04.1 Contributo in Atti di convegno|
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|06469731_IEEE.pdf||full paper||Publisher’s version||Accesso riservato|