Cost is not used in single cam trajectory post association

LCFractal / AIC21-MTMC

🏆The 1st place solution of track3 (City-Scale Multi-Camera Vehicle Tracking) in the NVIDIA AI City Challenge at CVPR 2021 Workshop.

MIT License

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Cost is not used in single cam trajectory post association #9

Closed libertyeagle closed 2 years ago

libertyeagle commented 2 years ago

In method associate in tracker/MOTBaseline/src/post_processing/post_association.py, the external C++ program MinCostPerfMatch is called with argument "--max", which solves maximum cardinality matching. The computed cost (similarity) is not used in this step.

Should it instead be solving min cost perfect matching problem, which calls MinCostPerfMatch with argument --minweight?

Thanks.

LCFractal commented 2 years ago

We use threshold to control whether to establish edges, so weights are no longer used. You can also try using --minweight.

libertyeagle commented 2 years ago

Thanks.