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Remove col_discard and row_discard #1397

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Remove col_discard and row_discard #1397

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6 changes: 2 additions & 4 deletions chapter_computer-vision/anchor.md
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Original file line number Diff line number Diff line change
Expand Up @@ -451,15 +451,13 @@ def assign_anchor_to_bbox(ground_truth, anchors, device, iou_threshold=0.5):
anc_i = torch.nonzero(max_ious >= iou_threshold).reshape(-1)
box_j = indices[max_ious >= iou_threshold]
anchors_bbox_map[anc_i] = box_j
col_discard = torch.full((num_anchors,), -1)
row_discard = torch.full((num_gt_boxes,), -1)
for _ in range(num_gt_boxes):
max_idx = torch.argmax(jaccard)
box_idx = (max_idx % num_gt_boxes).long()
anc_idx = (max_idx / num_gt_boxes).long()
anchors_bbox_map[anc_idx] = box_idx
jaccard[:, box_idx] = col_discard
jaccard[anc_idx, :] = row_discard
jaccard[:, box_idx] = -1
jaccard[anc_idx, :] = -1
return anchors_bbox_map
```

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