fix loss (#2614)

2 years ago · ff211f4037
parent dce4efce48
commit ff211f4037
1 changed files with 1 additions and 1 deletions
--- a/ultralytics/yolo/utils/loss.py
+++ b/ultralytics/yolo/utils/loss.py
@ -34,7 +34,7 @@ class BboxLoss(nn.Module):
    def forward(self, pred_dist, pred_bboxes, anchor_points, target_bboxes, target_scores, target_scores_sum, fg_mask):
        """IoU loss."""
-        weight = target_scores.sum(-1)[fg_mask]
+        weight = target_scores.sum(-1)[fg_mask].unsqueeze(-1)
        iou = bbox_iou(pred_bboxes[fg_mask], target_bboxes[fg_mask], xywh=False, CIoU=True)
        loss_iou = ((1.0 - iou) * weight).sum() / target_scores_sum