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car-detection-bayes
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updates

This commit is contained in:
Glenn Jocher 2018-08-26 23:52:06 +02:00
parent 8944db80b9
commit 2769d79d05
1 changed files with 8 additions and 7 deletions
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15
models.py
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@ -130,8 +130,9 @@ class YOLOLayer(nn.Module):
# Training
if targets is not None:
BCEWithLogitsLoss = nn.BCEWithLogitsLoss()
MSELoss = nn.MSELoss() # version 0.4.0
BCEWithLogitsLoss1 = nn.BCEWithLogitsLoss(size_average=False)
BCEWithLogitsLoss2 = nn.BCEWithLogitsLoss(size_average=True)
MSELoss = nn.MSELoss(size_average=False) # version 0.4.0
CrossEntropyLoss = nn.CrossEntropyLoss()
if requestPrecision:
@ -150,21 +151,21 @@ class YOLOLayer(nn.Module):
tx, ty, tw, th, mask, tcls = tx.cuda(), ty.cuda(), tw.cuda(), th.cuda(), mask.cuda(), tcls.cuda()
# Mask outputs to ignore non-existing objects (but keep confidence predictions)
nM = mask.sum()
nM = mask.sum().float()
nGT = sum([len(x) for x in targets])
if nM > 0:
lx = 5 * MSELoss(x[mask], tx[mask])
ly = 5 * MSELoss(y[mask], ty[mask])
lw = 5 * MSELoss(w[mask], tw[mask])
lh = 5 * MSELoss(h[mask], th[mask])
lconf = 1.5 * BCEWithLogitsLoss(pred_conf[mask], mask[mask].float())
lconf = 1.5 * BCEWithLogitsLoss1(pred_conf[mask], mask[mask].float())
lcls = 0.5 * CrossEntropyLoss(pred_cls[mask], torch.argmax(tcls, 1))
# lcls = BCEWithLogitsLoss(pred_cls[mask], tcls.float())
lcls = nM * CrossEntropyLoss(pred_cls[mask], torch.argmax(tcls, 1))
# lcls = BCEWithLogitsLoss1(pred_cls[mask], tcls.float())
else:
lx, ly, lw, lh, lcls, lconf = FT([0]), FT([0]), FT([0]), FT([0]), FT([0]), FT([0])
lconf += BCEWithLogitsLoss(pred_conf[~mask], mask[~mask].float())
lconf += nM * BCEWithLogitsLoss2(pred_conf[~mask], mask[~mask].float())
loss = lx + ly + lw + lh + lconf + lcls
i = torch.sigmoid(pred_conf[~mask]) > 0.99