Got all evaluation results -1 on custom dateset. about mmyolo HOT 3 CLOSED

@RalphGuo

• COCO Dataset, AP or AR = -1
  1. According to the definition of COCO dataset, the small and medium areas in an image are less than 1024 (32*32), 9216 (96*96), respectively.
  2. If the corresponding area has no object, the result of AP and AR will set to -1.

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2. the corresponding area has no object, the result of AP and AR will set to -1.

@hhaAndroid Hi, thanks for the quick reply.
i. I checked my json file, the areas are normal, it range from 7k~110k, so I dont think that's the problem;
ii. As I posted, I use the same data in train_dataloader and val_dataloader/test_dataloader, I should've got a beautiful evaluation result right? Is there any chance that the correspounding area has no obj on this condition ?

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@RalphGuo This situation is indeed a bit strange. Did you find out why?

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