I'm wondering if you have tried to use FCOS as a proposal network in two-stage detector.
Cause I tried to use it in a two-stage detector, although it generates greate proposals with high IoUs with ground-truth, the second stage doesn't work very well, with mAP only 36.6. (R-50 RetinaNet as backbone).
I simply used the boxes generated by FCOS as proposals and sent them to the second stage and didn't make any modification on original box head feature extractor or predictor.
I'm wondering if there is any reasons that may explain this situation or some modifications are required on second stage to make it work better?
Hi!
I'm wondering if you have tried to use FCOS as a proposal network in two-stage detector.
Cause I tried to use it in a two-stage detector, although it generates greate proposals with high IoUs with ground-truth, the second stage doesn't work very well, with mAP only 36.6. (R-50 RetinaNet as backbone).
I simply used the boxes generated by FCOS as proposals and sent them to the second stage and didn't make any modification on original box head feature extractor or predictor.
I'm wondering if there is any reasons that may explain this situation or some modifications are required on second stage to make it work better?