iou_matching.py:39: RuntimeWarning: invalid value encountered in true_divide return area_intersection / (area_bbox + area_candidates - area_intersection)

[jangelRiveaux]

Running for.a video after some frame the algorithm return this exception. i
iou_matching.py:39: RuntimeWarning: invalid value encountered in true_divide return area_intersection / (area_bbox + area_candidates - area_intersection)
Traceback (most recent call last):
File "object_tracker.py", line 266, in
app.run(main)
File "/usr/local/lib/python3.7/dist-packages/absl/app.py", line 303, in run
_run_main(main, args)
File "/usr/local/lib/python3.7/dist-packages/absl/app.py", line 251, in _run_main
sys.exit(main(argv))
File "object_tracker.py", line 223, in main
tracker.update(detections)
File "/content/drive/My Drive/Yolov4/yolov4-deepsort/deep_sort/tracker.py", line 69, in update
self._match(detections)
File "/content/drive/My Drive/Yolov4/yolov4-deepsort/deep_sort/tracker.py", line 127, in _match
detections, iou_track_candidates, unmatched_detections)
File "/content/drive/My Drive/Yolov4/yolov4-deepsort/deep_sort/linear_assignment.py", line 58, in min_cost_matching
indices = linear_sum_assignment(cost_matrix)
File "/usr/local/lib/python3.7/dist-packages/scipy/optimize/_lsap.py", line 93, in linear_sum_assignment
raise ValueError("matrix contains invalid numeric entries")
ValueError: matrix contains invalid numeric entries

It does not always happens. It happen with one video and yolov4 trained for my own problem.