about 'unlabeled' category in Detectron2
mvdelt opened this issue · comments
in Detectron2 builtin_meta.py,
CITYSCAPES_CATEGORIES doesn't contain the 'unlabeled' category.
only foreground categories are registered.
So, IMHO, when inference, there should be some 'threshold' to determine the background,
such as ROI_HEADS.SCORE_THRESH_TEST, isn't it?
If there is no threshold, the background would be covered with other categories.
How can we set the threshold?
There is no background class in Cityscapes, all 'unlabeled' categories are ignored in evaluation. Please check the Citysacpes official evaluation code for more detail.
Checked the evaluation code, you're right. Thanks!