max() arg is an empty sequence

[bigFatCatTom]

我在训练自己数据集的时候， 出现： .../ReDet/mmdet/core/bbox/transforms_rbbox.py", line 567, in mask2poly_single max_contour = max(contours, key=len) ValueError: max() arg is an empty sequence。 这是我在制作数据局的过程中有什么忽视掉的地方么。

[csuhan]

可能存在尺寸比较小的object，可以在dataset中加入尺寸判断： https://github.com/csuhan/ReDet/blob/0b9addf3c2734659fd6ffc7824f2e659fde4419c/mmdet/datasets/DOTA2.py#L130-L132

或者在dataset中判断mask_to_counter是否成功，对无法生成contour的object进行过滤，参考： https://github.com/csuhan/ReDet/blob/0b9addf3c2734659fd6ffc7824f2e659fde4419c/mmdet/core/bbox/transforms_rbbox.py#L557-L574

[Sairam13001]

Hai @bigFatCatTom , I am getting the same error while trying to train ReDet on VisDrone dataset. Did you solve this issue? Please let me know.

[bigFatCatTom]

Hai @bigFatCatTom , I am getting the same error while trying to train ReDet on VisDrone dataset. Did you solve this issue? Please let me know.

You can refer to the author's answer above