We present LodeSTAR, a label-free, single-shot particle tracker. We design a method for exploiting the symmetries of problem statements to train neural networks using extremely small datasets and without ground truth. We demonstrate that LodeSTAR outperforms traditional methods in terms of accuracy and that it reliably tracks experimental data of packed cells. Finally, we show that LodeSTAR can exploit additional symmetries to extend the measurable particle properties to the axial position of objects and particle polarizability.
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