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fix loss (#2614)

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Laughing 2023-05-15 18:09:34 +08:00 committed by GitHub
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ultralytics/yolo/utils/loss.py
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@ -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): def forward(self, pred_dist, pred_bboxes, anchor_points, target_bboxes, target_scores, target_scores_sum, fg_mask):
"""IoU loss.""" """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) 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 loss_iou = ((1.0 - iou) * weight).sum() / target_scores_sum