Digital image correlation with reduced bias error based on digital signal upsampling theory

Based on digital signal upsampling theory, a new computing strategy has been proposed to reduce the bias error in digital image correlation (DIC) caused by intensity interpolation. For each subset, before subpixel image matching, the subimage around the target subset was processed by increasing the ...

Source: Applied Optics - May 11, 2019 Category: Physics Authors: Wei Heng Buwei Huo Xinxing Shao Xiaoyuan He Source Type: research