Data repository deformation gradient estimator

<p>The numerical simulation code (Jupyter botebook) for evaluating the error of the deformation gradient tensor estimator is in folder &quot;Numerical simulations&quot;, and a generated example dataset is also included in the sub-folder.</p> <p>The particle tracking data for all the experiments are in the folder &quot;Experiments&quot;. For each experiment, the particle data is packed to a .pkl file and can be openned as a panda dataframe with 4 columns, i.e., [&#39;x&#39;, &#39;y&#39;, &#39;frame&#39;, &#39;particle&#39;]. Note that the unit of &#39;x&#39; and &#39;y&#39; columns is pixel. For the 3D experiment, an extra column &#39;z&#39; is included.</p> <p>The DIC data used for comparison with particle tracking is placed in the &quot;Experiments&quot; folder, as a .mat file generated from open-source DIC software NCORR. The DIC parameters and results are included in this file.</p>