GeoPIV-RG is a free image analysis module for MATLAB designed for geotechnical and structural engineering research applications. It is capable of sub-pixel measurement resolution for problems involving large displacements and deformations.

The module features include:

• Bi-quintic B-spline image intensity interpolation
• First order subset deformation
• Reliability Guided (RG) computation scheme
• Automatic large deformation reference image updating scheme
• Photogrammetric correction sub-routines
• Rotating reference frame strain sub-routine
• Plotting sub-routines

All files run directly from the Matlab command line and have been designed for efficient batch processing of image data.

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