Fix tensor type compatibility in dynamic soft label assigner and RTMDet head (#4140)

* Fix tensor type compatibility in dynamic soft label assigner and RTMDet head

* Update CHANGELOG

Author: eugene123tw

CHANGELOG.md

@@ -126,6 +126,8 @@ All notable changes to this project will be documented in this file.
   (<https://github.com/openvinotoolkit/training_extensions/pull/4107>)
 - Fix empty annotation in tiling
   (<https://github.com/openvinotoolkit/training_extensions/pull/4124>)
+- Fix tensor type compatibility in dynamic soft label assigner and RTMDet head
+  (<https://github.com/openvinotoolkit/training_extensions/pull/4140>)
 
 ## \[v2.1.0\]
 

src/otx/algo/common/utils/assigners/dynamic_soft_label_assigner.py

@@ -196,7 +196,7 @@ def assign(
         assigned_labels = assigned_gt_inds.new_full((num_bboxes,), -1)
         assigned_labels[valid_mask] = gt_labels[matched_gt_inds].long()
         max_overlaps = assigned_gt_inds.new_full((num_bboxes,), -INF, dtype=torch.float32)
-        max_overlaps[valid_mask] = matched_pred_ious
+        max_overlaps[valid_mask] = matched_pred_ious.to(max_overlaps)
         return AssignResult(num_gt, assigned_gt_inds, max_overlaps, labels=assigned_labels)
 
     def dynamic_k_matching(

src/otx/algo/detection/heads/rtmdet_head.py

@@ -574,7 +574,7 @@ def _get_targets_single(  # type: ignore[override]
         if len(pos_inds) > 0:
             # point-based
             pos_bbox_targets = sampling_result.pos_gt_bboxes
-            bbox_targets[pos_inds, :] = pos_bbox_targets
+            bbox_targets[pos_inds, :] = pos_bbox_targets.to(bbox_targets)
 
             labels[pos_inds] = sampling_result.pos_gt_labels
             if self.train_cfg["pos_weight"] <= 0: