add kwargs to sample_pos, sample_neg

mmdet/core/bbox/samplers/instance_balanced_pos_sampler.py

@@ -6,7 +6,7 @@ from .random_sampler import RandomSampler
 
 class InstanceBalancedPosSampler(RandomSampler):
 
-    def _sample_pos(self, assign_result, num_expected, bboxes=None):
+    def _sample_pos(self, assign_result, num_expected, **kwargs):
         pos_inds = torch.nonzero(assign_result.gt_inds > 0)
         if pos_inds.numel() != 0:
             pos_inds = pos_inds.squeeze(1)

mmdet/core/bbox/samplers/iou_balanced_neg_sampler.py

@@ -19,7 +19,7 @@ class IoUBalancedNegSampler(RandomSampler):
         self.hard_thr = hard_thr
         self.hard_fraction = hard_fraction
 
-    def _sample_neg(self, assign_result, num_expected, bboxes=None):
+    def _sample_neg(self, assign_result, num_expected, **kwargs):
         neg_inds = torch.nonzero(assign_result.gt_inds == 0)
         if neg_inds.numel() != 0:
             neg_inds = neg_inds.squeeze(1)

mmdet/core/bbox/samplers/ohem_sampler.py

@@ -22,7 +22,7 @@ class OHEMSampler(BaseSampler):
         self.bbox_head = bbox_head
 
     def _sample_pos(self, assign_result, num_expected, bboxes=None,
-                    feats=None):
+                    feats=None, **kwargs):
         """Hard sample some positive samples."""
         pos_inds = torch.nonzero(assign_result.gt_inds > 0)
         if pos_inds.numel() != 0:
@@ -35,7 +35,7 @@ class OHEMSampler(BaseSampler):
                 bbox_feats = self.bbox_roi_extractor(
                     feats[:self.bbox_roi_extractor.num_inputs], rois)
                 cls_score, _ = self.bbox_head(bbox_feats)
-                loss_all = self.bbox_head.loss(
+                loss_pos = self.bbox_head.loss(
                     cls_score=cls_score,
                     bbox_pred=None,
                     labels=assign_result.labels[pos_inds],
@@ -43,11 +43,11 @@ class OHEMSampler(BaseSampler):
                     bbox_targets=None,
                     bbox_weights=None,
                     reduction='none')['loss_cls']
-                _, topk_loss_pos_inds = loss_all.topk(num_expected)
+                _, topk_loss_pos_inds = loss_pos.topk(num_expected)
             return pos_inds[topk_loss_pos_inds]
 
     def _sample_neg(self, assign_result, num_expected, bboxes=None,
-                    feats=None):
+                    feats=None, **kwargs):
         """Hard sample some negative samples."""
         neg_inds = torch.nonzero(assign_result.gt_inds == 0)
         if neg_inds.numel() != 0:
@@ -60,7 +60,7 @@ class OHEMSampler(BaseSampler):
                 bbox_feats = self.bbox_roi_extractor(
                     feats[:self.bbox_roi_extractor.num_inputs], rois)
                 cls_score, _ = self.bbox_head(bbox_feats)
-                loss_all = self.bbox_head.loss(
+                loss_neg = self.bbox_head.loss(
                     cls_score=cls_score,
                     bbox_pred=None,
                     labels=assign_result.labels[neg_inds],
@@ -68,5 +68,5 @@ class OHEMSampler(BaseSampler):
                     bbox_targets=None,
                     bbox_weights=None,
                     reduction='none')['loss_cls']
-                _, topk_loss_neg_inds = loss_all.topk(num_expected)
+                _, topk_loss_neg_inds = loss_neg.topk(num_expected)
             return neg_inds[topk_loss_neg_inds]

mmdet/core/bbox/samplers/random_sampler.py

@@ -34,7 +34,7 @@ class RandomSampler(BaseSampler):
             rand_inds = torch.from_numpy(rand_inds).long().to(gallery.device)
         return gallery[rand_inds]
 
-    def _sample_pos(self, assign_result, num_expected, bboxes=None):
+    def _sample_pos(self, assign_result, num_expected, **kwargs):
         """Randomly sample some positive samples."""
         pos_inds = torch.nonzero(assign_result.gt_inds > 0)
         if pos_inds.numel() != 0:
@@ -44,7 +44,7 @@ class RandomSampler(BaseSampler):
         else:
             return self.random_choice(pos_inds, num_expected)
 
-    def _sample_neg(self, assign_result, num_expected, bboxes=None):
+    def _sample_neg(self, assign_result, num_expected, **kwargs):
         """Randomly sample some negative samples."""
         neg_inds = torch.nonzero(assign_result.gt_inds == 0)
         if neg_inds.numel() != 0:

mmdet/models/detectors/two_stage.py

@@ -114,17 +114,12 @@ class TwoStageDetector(BaseDetector, RPNTestMixin, BBoxTestMixin,
                 assign_result = bbox_assigner.assign(
                     proposal_list[i], gt_bboxes[i], gt_bboxes_ignore[i],
                     gt_labels[i])
-                if self.train_cfg.rcnn.sampler.type == 'OHEMSampler':
                 sampling_result = bbox_sampler.sample(
                     assign_result,
                     proposal_list[i],
                     gt_bboxes[i],
                     gt_labels[i],
                     feats=[xx[i][None] for xx in x])
-                else:
-                    sampling_result = bbox_sampler.sample(
-                        assign_result, proposal_list[i], gt_bboxes[i],
-                        gt_labels[i])
                 assign_results.append(assign_result)
                 sampling_results.append(sampling_result)