add min_pos_iou config field for train_cfg.rcnn

mmdet/models/roi_extractors/single_level.py

@@ -57,7 +57,7 @@ class SingleLevelRoI(nn.Module):
         proposals = proposals[:, :4]
         assigned_gt_inds, assigned_labels, argmax_overlaps, max_overlaps = \
             bbox_assign(proposals, gt_bboxes, gt_crowds, gt_labels,
-            cfg.pos_iou_thr, cfg.neg_iou_thr, cfg.pos_iou_thr, cfg.crowd_thr)
+            cfg.pos_iou_thr, cfg.neg_iou_thr, cfg.min_pos_iou, cfg.crowd_thr)
 
         if cfg.add_gt_as_proposals:
             proposals = torch.cat([gt_bboxes, proposals], dim=0)

tools/configs/r50_fpn_frcnn_1x.py

@@ -65,6 +65,7 @@ train_cfg = dict(
         pos_balance_sampling=False,
         neg_pos_ub=512,
         neg_balance_thr=0,
+        min_pos_iou=1.1,
         pos_weight=-1,
         debug=False))
 test_cfg = dict(

tools/configs/r50_fpn_maskrcnn_1x.py

@@ -77,6 +77,7 @@ train_cfg = dict(
         pos_balance_sampling=False,
         neg_pos_ub=512,
         neg_balance_thr=0,
+        min_pos_iou=1.1,
         pos_weight=-1,
         debug=False))
 test_cfg = dict(