Hi, dear related researchers, do you konw geoPIV_RG? I did a little test and took some photos. The attachments are the first and last photos. However, during the application of geoPIV_RG using MATLAB, after ‘geoLAUNCH_RG(1,14,1,2,'Example','Example','DSC_','JPG',2,1e-5,50,0.9,0.75);’ was runned, an error popped: Leapfrog cycle invoked by correlation coefficient violating user-defined limit. If this is a hotogrammetry analysis this will cause serious systematic errors in the output. To remedy this try relaxing the correlation coefficient limit. If this is not an analysis for photogrammetric correction small rounding errors may be induced; we recommend modes 2-4 for all purposes other than photogrammetric correction analysis. In addition, after 'geoLAUNCH_RG(1,14,1,2,'CP_Example','CP_Example','DSC_','JPG',1,1e-5,10,0.9,0.75);' was runned, cautions appear on the command line of MATLAB: Minimum full field correlation coefficient violated tolerance...

Minimum full field correlation coefficient = 1.201668e-01

Updating reference image... I do not know why? Could someone please tell me? I am deeply grateful to you!