Measurement Science and Technology
Speckle Texture Quality Guided Digital Image Correlation for Measurement under Disturbance Conditions
Abstract In practical digital image correlation measurements, speckle degradation and loss of effective information often occur due to various disturbances. Despite its widespread application in displacement measurement without physical contact, these factors can significantly affect measurement accuracy. Considering the influence of speckle patterns on digital image correlation, a speckle texture quality factor is proposed, which evaluates speckle texture quality and optimizes the correlation coefficient formulati …