Spatial Uncertainty in Digital Image Correlation

This is the original materials of my paper "spatial uncertainty of measurement errors in digital image correlation."The spatial uncertainty is caused by the differences of intensity distribution between different subsets. In the paper, I try to build a theoretical model to estimate the spatial uncertainty of measurement errors in DIC for speckle patterns that are composed of randomly positioned speckles. The essenstial difference between this paper and my previous work "statistical model for speckle pattern optimization" is that this work can estimate the spatial uncertainty while the previous work can't.The data set, which is the same as our previous paper, can be found in Figshare. The "SpatialUncertainty" contains the MATLAB codes.The mathematical derivations are somewhat complex, so I upload my note. In the note, the derivation details can be found. A problem may be that this note is written in Chinese...If you have any question or find something is wrong, you can send me an email. My email address is [e-mail].