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car-detection-bayes
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updates

This commit is contained in:
Glenn Jocher 2018-11-17 12:54:44 +01:00
parent dd7c3d2455
commit 1415a798fe
2 changed files with 14 additions and 14 deletions
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20
models.py
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@ -123,16 +123,16 @@ class YOLOLayer(nn.Module):
y = torch.sigmoid(p[..., 1]) # Center y y = torch.sigmoid(p[..., 1]) # Center y
# Width and height (yolo method) # Width and height (yolo method)
# w = p[..., 2] # Width w = p[..., 2] # Width
# h = p[..., 3] # Height h = p[..., 3] # Height
# width = torch.exp(w.data) * self.anchor_w width = torch.exp(w.data) * self.anchor_w
# height = torch.exp(h.data) * self.anchor_h height = torch.exp(h.data) * self.anchor_h
# Width and height (power method) # Width and height (power method)
w = torch.sigmoid(p[..., 2]) # Width # w = torch.sigmoid(p[..., 2]) # Width
h = torch.sigmoid(p[..., 3]) # Height # h = torch.sigmoid(p[..., 3]) # Height
width = ((w.data * 2) ** 2) * self.anchor_w # width = ((w.data * 2) ** 2) * self.anchor_w
height = ((h.data * 2) ** 2) * self.anchor_h # height = ((h.data * 2) ** 2) * self.anchor_h
# Add offset and scale with anchors (in grid space, i.e. 0-13) # Add offset and scale with anchors (in grid space, i.e. 0-13)
pred_boxes = FT(bs, self.nA, nG, nG, 4) pred_boxes = FT(bs, self.nA, nG, nG, 4)
@ -174,8 +174,8 @@ class YOLOLayer(nn.Module):
# lconf = k * BCEWithLogitsLoss(pred_conf[mask], mask[mask].float()) # lconf = k * BCEWithLogitsLoss(pred_conf[mask], mask[mask].float())
lconf = (k * 10) * BCEWithLogitsLoss(pred_conf, mask.float()) lconf = (k * 10) * BCEWithLogitsLoss(pred_conf, mask.float())
lcls = (k / 10) * CrossEntropyLoss(pred_cls[mask], torch.argmax(tcls, 1)) # lcls = (k / 10) * CrossEntropyLoss(pred_cls[mask], torch.argmax(tcls, 1))
# lcls = k * BCEWithLogitsLoss(pred_cls[mask], tcls.float()) lcls = (k * 10) * BCEWithLogitsLoss(pred_cls[mask], tcls.float())
else: else:
lx, ly, lw, lh, lcls, lconf = FT([0]), FT([0]), FT([0]), FT([0]), FT([0]), FT([0]) lx, ly, lw, lh, lcls, lconf = FT([0]), FT([0]), FT([0]), FT([0]), FT([0]), FT([0])

8
utils/utils.py
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@ -259,12 +259,12 @@ def build_targets(pred_boxes, pred_conf, pred_cls, target, anchor_wh, nA, nC, nG
ty[b, a, gj, gi] = gy - gj.float() ty[b, a, gj, gi] = gy - gj.float()
# Width and height (yolo method) # Width and height (yolo method)
# tw[b, a, gj, gi] = torch.log(gw / anchor_wh[a, 0]) tw[b, a, gj, gi] = torch.log(gw / anchor_wh[a, 0])
# th[b, a, gj, gi] = torch.log(gh / anchor_wh[a, 1]) th[b, a, gj, gi] = torch.log(gh / anchor_wh[a, 1])
# Width and height (power method) # Width and height (power method)
tw[b, a, gj, gi] = torch.sqrt(gw / anchor_wh[a, 0]) / 2 # tw[b, a, gj, gi] = torch.sqrt(gw / anchor_wh[a, 0]) / 2
th[b, a, gj, gi] = torch.sqrt(gh / anchor_wh[a, 1]) / 2 # th[b, a, gj, gi] = torch.sqrt(gh / anchor_wh[a, 1]) / 2
# One-hot encoding of label # One-hot encoding of label
tcls[b, a, gj, gi, tc] = 1 tcls[b, a, gj, gi, tc] = 1