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Unverified Commit 6a53c9af authored by Shijie's avatar Shijie Committed by GitHub
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fix fcos gtarea calculation (#5816) 


Co-authored-by: default avatarVasilis Vryniotis <datumbox@users.noreply.github.com>
parent fd4a6939
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torchvision/models/detection/fcos.py
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...@@ -471,7 +471,7 @@ class FCOS(nn.Module): ...@@ -471,7 +471,7 @@ class FCOS(nn.Module):
pairwise_match &= (pairwise_dist > lower_bound[:, None]) & (pairwise_dist < upper_bound[:, None]) pairwise_match &= (pairwise_dist > lower_bound[:, None]) & (pairwise_dist < upper_bound[:, None])
# match the GT box with minimum area, if there are multiple GT matches # match the GT box with minimum area, if there are multiple GT matches
gt_areas = (gt_boxes[:, 1] - gt_boxes[:, 0]) * (gt_boxes[:, 3] - gt_boxes[:, 1]) # N gt_areas = (gt_boxes[:, 2] - gt_boxes[:, 0]) * (gt_boxes[:, 3] - gt_boxes[:, 1]) # N
pairwise_match = pairwise_match.to(torch.float32) * (1e8 - gt_areas[None, :]) pairwise_match = pairwise_match.to(torch.float32) * (1e8 - gt_areas[None, :])
min_values, matched_idx = pairwise_match.max(dim=1) # R, per-anchor match min_values, matched_idx = pairwise_match.max(dim=1) # R, per-anchor match
matched_idx[min_values < 1e-5] = -1 # unmatched anchors are assigned -1 matched_idx[min_values < 1e-5] = -1 # unmatched anchors are assigned -1
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