def save_fc(fp, fc_model):
if fc_model.bias.is_cuda:
convert2cpu(fc_model.bias.data).numpy().tofile(fp)
convert2cpu(fc_model.weight.data).numpy().tofile(fp)
else:
fc_model.bias.data.numpy().tofile(fp)
fc_model.weight.data.numpy().tofile(fp)
def save_conv(fp, conv_model):
if conv_model.bias.is_cuda:
convert2cpu(conv_model.bias.data).numpy().tofile(fp)
convert2cpu(conv_model.weight.data).numpy().tofile(fp)
else:
conv_model.bias.data.numpy().tofile(fp)
conv_model.weight.data.numpy().tofile(fp)
def save_deform_conv(fp, conv_model):
if conv_model.weight.is_cuda:
convert2cpu(conv_model.weight.data).numpy().tofile(fp)
convert2cpu(conv_model.layer_1.weight.data).numpy().tofile(fp)
else:
conv_model.weight.data.numpy().tofile(fp)
conv_model.layer_1.weight.data.numpy().tofile(fp)
def save_conv(fp, conv_model):
""" Save convolutional model """
if conv_model.bias.is_cuda:
convert2cpu(conv_model.bias.data).numpy().tofile(fp)
convert2cpu(conv_model.weight.data).numpy().tofile(fp)
else:
conv_model.bias.data.numpy().tofile(fp)
conv_model.weight.data.numpy().tofile(fp)
def save_conv_bn(fp, conv_model, bn_model):
if bn_model.bias.is_cuda:
convert2cpu(bn_model.bias.data).numpy().tofile(fp)
convert2cpu(bn_model.weight.data).numpy().tofile(fp)
convert2cpu(bn_model.running_mean).numpy().tofile(fp)
convert2cpu(bn_model.running_var).numpy().tofile(fp)
convert2cpu(conv_model.weight.data).numpy().tofile(fp)
else:
bn_model.bias.data.numpy().tofile(fp)
bn_model.weight.data.numpy().tofile(fp)
bn_model.running_mean.numpy().tofile(fp)
bn_model.running_var.numpy().tofile(fp)
conv_model.weight.data.numpy().tofile(fp)
def save_conv_bn(fp, conv_model, bn_model):
""" Save batch normalized convolutional model """
if bn_model.bias.is_cuda:
convert2cpu(bn_model.bias.data).numpy().tofile(fp)
convert2cpu(bn_model.weight.data).numpy().tofile(fp)
convert2cpu(bn_model.running_mean).numpy().tofile(fp)
convert2cpu(bn_model.running_var).numpy().tofile(fp)
convert2cpu(conv_model.weight.data).numpy().tofile(fp)
else:
bn_model.bias.data.numpy().tofile(fp)
bn_model.weight.data.numpy().tofile(fp)
bn_model.running_mean.numpy().tofile(fp)
bn_model.running_var.numpy().tofile(fp)
conv_model.weight.data.numpy().tofile(fp)
def save_conv_target_class(fp, conv_model, targetclass, numclass):
print(
'save weight with the new target number classes: '.format(targetclass))
if targetclass < numclass:
### the way yolov3 calculate is (numclass + 5)*3
differ = (numclass - targetclass) * 3
else:
differ = (targetclass - numclass) * 3
print('differ: ', differ)
if conv_model.bias.is_cuda:
convert2cpu(conv_model.bias.data).numpy().tofile(fp)
convert2cpu(conv_model.bias.data[:differ]).numpy().tofile(fp)
convert2cpu(conv_model.weight.data).numpy().tofile(fp)
convert2cpu(conv_model.weight.data[:differ]).numpy().tofile(fp)
else:
conv_model.bias.data.numpy().tofile(fp)
conv_model.bias.data[:differ].numpy().tofile(fp)
conv_model.weight.data.numpy().tofile(fp)
conv_model.weight.data[:differ].numpy().tofile(fp)
def forward(self, x, y = None):
ind = -2
self.loss = None
self.interParam = []
self.bn_weight_params = []
outputs = dict()
out_predicts = []
for block in self.blocks:
ind = ind + 1
#if ind > 0:
# return x
if block['type'] == 'net':
continue
elif block['type'] in ['convolutional', 'deconvolutional', 'maxpool', 'reorg', 'upsample', 'avgpool', 'softmax', 'connected']:
x = self.models[ind](x)
if block['type'] == 'convolutional' and ind >= 53:
for module_name, module in self.models[ind].named_children():
if module_name.startswith('bn'):
for param_name, param in module.named_parameters():
if param_name == 'weight':
self.bn_weight_params.append(convert2cpu(param))
outputs[ind] = x
elif block['type'] == 'route':
layers = block['layers'].split(',')
layers = [int(i) if int(i) > 0 else int(i)+ind for i in layers]
layerlen = len(layers)
assert (layerlen >= 1)
x = outputs[layers[0]]
if layerlen > 1:
for i in range(1, layerlen):
x = torch.cat((x,outputs[layers[i]]), 1)
outputs[ind] = x
elif block['type'] == 'shortcut':
from_layer = int(block['from'])
activation = block['activation']
from_layer = from_layer if from_layer > 0 else from_layer + ind
x1 = outputs[from_layer]
x2 = outputs[ind-1]
x = x1 + x2
if activation == 'leaky':
x = F.leaky_relu(x, 0.1, inplace=True)
elif activation == 'relu':
x = F.relu(x, inplace=True)
outputs[ind] = x
elif block['type'] == 'region':
continue
if self.loss:
self.loss = self.loss + self.models[ind](x)
else:
self.loss = self.models[ind](x)
outputs[ind] = None
elif block['type'] in ['yolo', 'pose', 'pose-2d', 'pose-ind', 'pose-part', 'pose-seg', 'pose-3dr', 'pose-3drseg', 'pose-pnp']:
layerId = ("L%03d" % int(ind))
if self.training:
loss, param = self.models[ind](x, y, [self.seen])
#self.no_reg_loss = loss.item()
# Compute regularization
#all_bn_weights = torch.cat([x.view(-1) for x in self.bn_weight_params])
#l1_regularization = torch.norm(all_bn_weights, 1)
#self.l1_reg_only = l1_regularization.item()
#loss = torch.add(loss, l1_regularization, alpha=self.bn_regularization_lambda)
#print('no_reg_loss: ' + str(self.no_reg_loss) + '\tl1_reg_only: ' + str(self.l1_reg_only), '\tregularized_loss: ' + str(self.regularized_loss))
if self.loss:
self.loss = self.loss + loss
else:
self.loss = loss
self.interParam.append([layerId, block['type'], param])
else:
pred = self.models[ind](x, None)
out_predicts.append([layerId, block['type'], pred])
elif block['type'] == 'cost':
continue
else:
print('unknown type %s' % (block['type']))
if self.training:
return self.loss, self.interParam
else:
return out_predicts
def forward(self, output, target):
#output : BxAs*(4+1+num_classes)*H*W
mask_tuple = self.get_mask_boxes(output)
t0 = time.time()
nB = output.data.size(0) # batch size
nA = mask_tuple['n'].item() # num_anchors
nC = self.num_classes
nH = output.data.size(2)
nW = output.data.size(3)
anchor_step = mask_tuple['a'].size(0) // nA
anchors = mask_tuple['a'].view(nA, anchor_step).to(self.device)
cls_anchor_dim = nB * nA * nH * nW
output = output.view(nB, nA, (5 + nC), nH, nW)
cls_grid = torch.linspace(5, 5 + nC - 1, nC).long().to(self.device)
ix = torch.LongTensor(range(0, 5)).to(self.device)
pred_boxes = torch.FloatTensor(4, cls_anchor_dim).to(self.device)
coord = output.index_select(2, ix[0:4]).view(
nB * nA, -1, nH * nW).transpose(0, 1).contiguous().view(
-1, cls_anchor_dim) # x, y, w, h
coord[0:2] = coord[0:2].sigmoid()
conf = output.index_select(2, ix[4]).view(cls_anchor_dim).sigmoid()
cls = output.index_select(2, cls_grid)
cls = cls.view(nB * nA, nC, nH * nW).transpose(1, 2).contiguous().view(
cls_anchor_dim, nC).to(self.device)
t1 = time.time()
grid_x = torch.linspace(0, nW - 1, nW).repeat(
nB * nA, nH, 1).view(cls_anchor_dim).to(self.device)
grid_y = torch.linspace(0, nH - 1, nH).repeat(nW, 1).t().repeat(
nB * nA, 1, 1).view(cls_anchor_dim).to(self.device)
anchor_w = anchors.index_select(1, ix[0]).repeat(
nB, nH * nW).view(cls_anchor_dim)
anchor_h = anchors.index_select(1, ix[1]).repeat(
nB, nH * nW).view(cls_anchor_dim)
pred_boxes[0] = coord[0] + grid_x
pred_boxes[1] = coord[1] + grid_y
pred_boxes[2] = coord[2].exp() * anchor_w
pred_boxes[3] = coord[3].exp() * anchor_h
# for build_targets. it works faster on CPU than on GPU
pred_boxes = convert2cpu(
pred_boxes.transpose(0, 1).contiguous().view(-1, 4)).detach()
t2 = time.time()
nGT, nRecall, nRecall75, obj_mask, noobj_mask, coord_mask, tcoord, tconf, tcls = \
self.build_targets(pred_boxes, target.detach(), anchors.detach(), nA, nH, nW)
tcls = tcls.view(cls_anchor_dim, nC).to(self.device)
nProposals = int((conf > 0.25).sum())
tcoord = tcoord.view(4, cls_anchor_dim).to(self.device)
tconf = tconf.view(cls_anchor_dim).to(self.device)
conf_mask = (obj_mask + noobj_mask).view(cls_anchor_dim).to(
self.device)
obj_mask = obj_mask.view(cls_anchor_dim).to(self.device)
coord_mask = coord_mask.view(cls_anchor_dim).to(self.device)
t3 = time.time()
loss_coord = nn.MSELoss(reduction='sum')(coord * coord_mask,
tcoord * coord_mask) / nB
loss_conf = nn.BCELoss(reduction='sum')(conf * conf_mask,
tconf * conf_mask) / nB
loss_cls = nn.BCEWithLogitsLoss(reduction='sum')(cls, tcls) / nB
loss = loss_coord + loss_conf + loss_cls
t4 = time.time()
if False:
print('-' * 30)
print(' activation : %f' % (t1 - t0))
print(' create pred_boxes : %f' % (t2 - t1))
print(' build targets : %f' % (t3 - t2))
print(' create loss : %f' % (t4 - t3))
print(' total : %f' % (t4 - t0))
print(
'%d: Layer(%03d) nGT %3d, nRC %3d, nRC75 %3d, nPP %3d, loss: box %6.3f, conf %6.3f, class %6.3f, total %7.3f'
% (self.seen, self.nth_layer, nGT, nRecall, nRecall75, nProposals,
loss_coord, loss_conf, loss_cls, loss))
if math.isnan(loss.item()):
print(conf, tconf)
sys.exit(0)
return loss
def extract(grad):
global saved_grad
saved_grad = convert2cpu(grad.data)
def forward(self, output, target):
#output : BxAs*(4+1+num_classes)*H*W
t0 = time.time()
nB = output.data.size(0) # batch size
nA = self.num_anchors
nC = self.num_classes
nH = output.data.size(2)
nW = output.data.size(3)
cls_anchor_dim = nB*nA*nH*nW
if not isinstance(self.anchors, torch.Tensor):
self.anchors = torch.FloatTensor(self.anchors).view(self.num_anchors, self.anchor_step).to(self.device)
output = output.view(nB, nA, (5+nC), nH, nW)
cls_grid = torch.linspace(5,5+nC-1,nC).long().to(self.device)
ix = torch.LongTensor(range(0,5)).to(self.device)
pred_boxes = torch.FloatTensor(4, cls_anchor_dim).to(self.device)
coord = output.index_select(2, ix[0:4]).view(nB*nA, -1, nH*nW).transpose(0,1).contiguous().view(-1,cls_anchor_dim) # x, y, w, h
coord[0:2] = coord[0:2].sigmoid() # x, y
conf = output.index_select(2, ix[4]).view(nB, nA, nH, nW).sigmoid()
cls = output.index_select(2, cls_grid)
cls = cls.view(nB*nA, nC, nH*nW).transpose(1,2).contiguous().view(cls_anchor_dim, nC)
t1 = time.time()
grid_x = torch.linspace(0, nW-1, nW).repeat(nB*nA, nH, 1).view(cls_anchor_dim).to(self.device)
grid_y = torch.linspace(0, nH-1, nH).repeat(nW,1).t().repeat(nB*nA, 1, 1).view(cls_anchor_dim).to(self.device)
anchor_w = self.anchors.index_select(1, ix[0]).repeat(1, nB*nH*nW).view(cls_anchor_dim)
anchor_h = self.anchors.index_select(1, ix[1]).repeat(1, nB*nH*nW).view(cls_anchor_dim)
pred_boxes[0] = coord[0] + grid_x
pred_boxes[1] = coord[1] + grid_y
pred_boxes[2] = coord[2].exp() * anchor_w
pred_boxes[3] = coord[3].exp() * anchor_h
# for build_targets. it works faster on CPU than on GPU
pred_boxes = convert2cpu(pred_boxes.transpose(0,1).contiguous().view(-1,4)).detach()
t2 = time.time()
nGT, nRecall, coord_mask, conf_mask, cls_mask, tcoord, tconf, tcls = \
self.build_targets(pred_boxes, target.detach(), nH, nW)
cls_mask = (cls_mask == 1)
tcls = tcls[cls_mask].long().view(-1)
cls_mask = cls_mask.view(-1, 1).repeat(1,nC).to(self.device)
cls = cls[cls_mask].view(-1, nC)
nProposals = int((conf > 0.25).sum())
tcoord = tcoord.view(4, cls_anchor_dim).to(self.device)
tconf, tcls = tconf.to(self.device), tcls.to(self.device)
coord_mask, conf_mask = coord_mask.view(cls_anchor_dim).to(self.device), conf_mask.sqrt().to(self.device)
t3 = time.time()
loss_coord = self.coord_scale * nn.MSELoss(size_average=False)(coord*coord_mask, tcoord*coord_mask)/2
# sqrt(object_scale)/2 is almost equal to 1.
loss_conf = nn.MSELoss(size_average=False)(conf*conf_mask, tconf*conf_mask)/2
loss_cls = self.class_scale * nn.CrossEntropyLoss(size_average=False)(cls, tcls) if cls.size(0) > 0 else 0
loss = loss_coord + loss_conf + loss_cls
t4 = time.time()
if False:
print('-'*30)
print(' activation : %f' % (t1 - t0))
print(' create pred_boxes : %f' % (t2 - t1))
print(' build targets : %f' % (t3 - t2))
print(' create loss : %f' % (t4 - t3))
print(' total : %f' % (t4 - t0))
print('%d: nGT %3d, nRC %3d, nPP %3d, loss: box %6.3f, conf %6.3f, class %6.3f, total %7.3f'
% (self.seen, nGT, nRecall, nProposals, loss_coord, loss_conf, loss_cls, loss))
if math.isnan(loss.item()):
print(conf, tconf)
sys.exit(0)
return loss
def save_fc(fp, fc_model):
# print('fc mode:')
# print(fc_model)
# fc_model.bias.data.numpy().tofile(fp)
convert2cpu(fc_model.weight.data).numpy().tofile(fp)
def forward(self, output, target):
#output : BxAs*(4+1+num_classes)*H*W
mask_tuple = self.get_mask_boxes(output)
t0 = time.time()
nB = output.data.size(0) # batch size
nA = mask_tuple['n'].item() # num_anchors
nC = self.num_classes
nF = self.num_props
nH = output.data.size(2)
nW = output.data.size(3)
anchor_step = mask_tuple['a'].size(0) // nA
anchors = mask_tuple['a'].view(nA, anchor_step).to(self.device)
cls_anchor_dim = nB * nA * nH * nW
# print 'shape of out put: ', output.shape, nC, nF
# print '-'*100
output = output.view(nB, nA, (5 + nC + nF), nH, nW)
cls_grid = torch.linspace(5, 5 + nC - 1, nC).long().to(self.device)
prop_grid = torch.linspace(5 + nC, 5 + nC + nF - 1,
nF).long().to(self.device)
ix = torch.LongTensor(range(0, 5)).to(self.device)
pred_boxes = torch.FloatTensor(4, cls_anchor_dim).to(self.device)
coord = output.index_select(2, ix[0:4]).view(
nB * nA, -1, nH * nW).transpose(0, 1).contiguous().view(
-1, cls_anchor_dim) # x, y, w, h
coord[0:2] = coord[0:2].sigmoid() # x, y
conf = output.index_select(2, ix[4]).view(nB, nA, nH, nW).sigmoid()
cls = output.index_select(2, cls_grid)
prop = output.index_select(2, prop_grid)
cls = cls.view(nB * nA, nC, nH * nW).transpose(1, 2).contiguous().view(
cls_anchor_dim, nC)
prop = prop.view(nB * nA, nF,
nH * nW).transpose(1, 2).contiguous().view(
cls_anchor_dim, nF)
t1 = time.time()
grid_x = torch.linspace(0, nW - 1, nW).repeat(
nB * nA, nH, 1).view(cls_anchor_dim).to(self.device)
grid_y = torch.linspace(0, nH - 1, nH).repeat(nW, 1).t().repeat(
nB * nA, 1, 1).view(cls_anchor_dim).to(self.device)
anchor_w = anchors.index_select(1, ix[0]).repeat(
1, nB * nH * nW).view(cls_anchor_dim)
anchor_h = anchors.index_select(1, ix[1]).repeat(
1, nB * nH * nW).view(cls_anchor_dim)
pred_boxes[0] = coord[0] + grid_x
pred_boxes[1] = coord[1] + grid_y
pred_boxes[2] = coord[2].exp() * anchor_w
pred_boxes[3] = coord[3].exp() * anchor_h
# for build_targets. it works faster on CPU than on GPU
pred_boxes = convert2cpu(
pred_boxes.transpose(0, 1).contiguous().view(-1, 4)).detach()
t2 = time.time()
nGT, nRecall, nRecall75, coord_mask, conf_mask, cls_mask, prop_mask, tcoord, tconf, tcls, tprop = \
self.build_targets(pred_boxes, target.detach(), anchors.detach(), nA, nH, nW)
cls_mask = (cls_mask == 1)
tcls = tcls[cls_mask].long().view(-1)
cls_mask = cls_mask.view(-1, 1).repeat(1, nC).to(self.device)
cls = cls[cls_mask].view(-1, nC)
prop_masks = (prop_mask == 1)
pro_mask = prop_masks.view(-1, 1).repeat(1, nF).to(self.device)
propties = prop[pro_mask].view(-1, nF)
loss_prop = 0.0
if propties.size(0) > 0:
for i in range(nF):
tpropty = tprop[i]
tpropty = tpropty[prop_masks].view(-1).to(self.device)
propty = propties[:, i].sigmoid()
# loss_prop += nn.BCELoss(size_average=False)(propty, tpropty)
# propty = propties[:, i]
loss_prop += nn.MSELoss(size_average=False)(propty, tpropty)
nProposals = int((conf > 0.25).sum())
tcoord = tcoord.view(4, cls_anchor_dim).to(self.device)
tconf, tcls = tconf.to(self.device), tcls.to(self.device)
coord_mask, conf_mask = coord_mask.view(cls_anchor_dim).to(
self.device), conf_mask.to(self.device)
t3 = time.time()
# n = torch.sum(coord_mask, 0)
n = nGT / nB
n = n / nA
n = 0
if n > 0:
loss_coord = nn.MSELoss(size_average=False)(
coord * coord_mask, tcoord * coord_mask) / n
loss_coord = loss_coord**2
loss_conf = nn.MSELoss(size_average=False)(conf * conf_mask,
tconf * conf_mask) / n
loss_cls = nn.CrossEntropyLoss(
size_average=False)(cls, tcls) if cls.size(0) > 0 else 0
loss_cls = 100 * loss_cls / n
# loss_conf = torch.sqrt(loss_conf)
# loss_conf = loss_conf / n
else:
loss_coord = nn.MSELoss(size_average=False)(
coord * coord_mask, tcoord * coord_mask) / 2
loss_conf = nn.MSELoss(size_average=False)(conf * conf_mask,
tconf * conf_mask)
# loss_coord = nn.MSELoss(size_average=False)(coord*coord_mask, tcoord*coord_mask)/2
# loss_conf = nn.MSELoss(size_average=False)(conf*conf_mask, tconf*conf_mask)
loss_cls = nn.CrossEntropyLoss(
size_average=False)(cls, tcls) if cls.size(0) > 0 else 0
coe_coord = 10.0
coe_conf = 100.0
#coe = [1.0, 5.5, 0.5, 0.3]
coe = [1.0, 0.0, 0.0, 0.0]
if loss_coord > 5:
coe = [2.0, 1.0, 2.0, 0.0]
elif loss_conf > 5:
coe = [1.0, 1.0, 10.0, 0.0]
else:
# coe = [1.0, 1.0, 1.0, 1.0]
coe = [1.0, 2.0, 1.0, 1.0]
# if loss_cls > 1:
# coe = [0.5, 0.0, 0.5, 0.0]
# else:
# coe = [0.4, 0.1, 0.1, 0.4]
loss = coe[0] * loss_coord + coe[1] * loss_conf + coe[
2] * loss_cls + coe[3] * loss_prop
# loss = loss_coord + loss_conf + loss_cls # + loss_prop
losses = [loss_coord, loss_conf, loss_cls, loss_prop]
losses = [str(round(float(s), 5)) for s in losses]
self.csv_write.write(','.join(losses) + '\n')
t4 = time.time()
if False:
print('-' * 30)
print(' activation : %f' % (t1 - t0))
print(' create pred_boxes : %f' % (t2 - t1))
print(' build targets : %f' % (t3 - t2))
print(' create loss : %f' % (t4 - t3))
print(' total : %f' % (t4 - t0))
print(
'[%s] %d: Layer(%03d) nGT %3d, nRC %3d, nRC75 %3d, nPP %3d, |loss: box =%6.3f, conf =%6.3f, class =%6.3f, prop =%6.3f, |total %7.3f|, num =%d'
% (time.strftime('%H:%M:%S %d,%b.', time.localtime()), self.seen,
self.nth_layer, nGT, nRecall, nRecall75, nProposals, loss_coord,
loss_conf, loss_cls, loss_prop, loss, n))
if math.isnan(loss.item()):
print(conf, tconf)
sys.exit(0)
return loss
def region_loss(output, target, config):
anchors = config['anchors']
n_b = output.data.size(0)
n_a = len(anchors) // 2
n_c = config['num_classes']
n_h = output.data.size(2)
n_w = output.data.size(3)
output = output.view(n_b, n_a, (5 + n_c), n_h, n_w)
x = F.sigmoid(
output.index_select(2, Variable(torch.cuda.LongTensor([0]))).view(
n_b, n_a, n_h, n_w))
y = F.sigmoid(
output.index_select(2, Variable(torch.cuda.LongTensor([1]))).view(
n_b, n_a, n_h, n_w))
w = output.index_select(2, Variable(torch.cuda.LongTensor([2]))).view(
n_b, n_a, n_h, n_w)
h = output.index_select(2, Variable(torch.cuda.LongTensor([3]))).view(
n_b, n_a, n_h, n_w)
conf = F.sigmoid(
output.index_select(2, Variable(torch.cuda.LongTensor([4]))).view(
n_b, n_a, n_h, n_w))
cls = output.index_select(
2, Variable(torch.linspace(5, 5 + n_c - 1, n_c).long().cuda()))
cls = cls.view(n_b * n_a, n_c,
n_h * n_w).transpose(1, 2).contiguous().view(
n_b * n_a * n_h * n_w, n_c)
pred_boxes = torch.cuda.FloatTensor(4, n_b * n_a * n_h * n_w)
grid_x = torch.linspace(0, n_w - 1, n_w).repeat(n_h, 1).repeat(
n_b * n_a, 1, 1).view(n_b * n_a * n_h * n_w).cuda()
grid_y = torch.linspace(0, n_h - 1, n_h).repeat(n_w, 1).t().repeat(
n_b * n_a, 1, 1).view(n_b * n_a * n_h * n_w).cuda()
anchor_w = torch.Tensor(anchors).view(n_a, 2).index_select(
1, torch.LongTensor([0])).cuda()
anchor_h = torch.Tensor(anchors).view(n_a, 2).index_select(
1, torch.LongTensor([1])).cuda()
anchor_w = anchor_w.repeat(n_b,
1).repeat(1, 1,
n_h * n_w).view(n_b * n_a * n_h * n_w)
anchor_h = anchor_h.repeat(n_b,
1).repeat(1, 1,
n_h * n_w).view(n_b * n_a * n_h * n_w)
pred_boxes[0] = x.data + grid_x
pred_boxes[1] = y.data + grid_y
pred_boxes[2] = torch.exp(w.data) * anchor_w
pred_boxes[3] = torch.exp(h.data) * anchor_h
pred_boxes = convert2cpu(
pred_boxes.transpose(0, 1).contiguous().view(-1, 4))
n_gt, n_correct, coord_mask, conf_mask, cls_mask, tx, ty, tw, th, tconf,\
tcls = build_targets(pred_boxes, target.data, anchors, n_a, n_h, n_w,
config)
cls_mask = (cls_mask == 1)
n_proposals = int((conf > .25).sum().data[0])
tx = Variable(tx.cuda())
ty = Variable(ty.cuda())
tw = Variable(tw.cuda())
th = Variable(th.cuda())
tconf = Variable(tconf.cuda())
tcls = Variable(tcls.view(-1)[cls_mask].long().cuda())
coord_mask = Variable(coord_mask.cuda())
conf_mask = Variable(conf_mask.cuda().sqrt())
cls_mask = Variable(cls_mask.view(-1, 1).repeat(1, n_c).cuda())
cls = cls[cls_mask].view(-1, n_c)
coord_scale = config['coord_scale']
class_scale = config['class_scale']
loss_x = coord_scale * nn.MSELoss(size_average=False)(x * coord_mask,
tx * coord_mask) / 2
loss_y = coord_scale * nn.MSELoss(size_average=False)(y * coord_mask,
ty * coord_mask) / 2
loss_w = coord_scale * nn.MSELoss(size_average=False)(w * coord_mask,
tw * coord_mask) / 2
loss_h = coord_scale * nn.MSELoss(size_average=False)(h * coord_mask,
th * coord_mask) / 2
loss_conf = nn.MSELoss(size_average=False)(conf * conf_mask,
tconf * conf_mask) / 2
loss_cls = class_scale * nn.CrossEntropyLoss(size_average=False)(cls, tcls)
loss = loss_x + loss_y + loss_w + loss_h + loss_conf + loss_cls
print('nGT %d, recall %d, proposals %d, loss: x %f, y %f, w %f, h %f,'
' conf %f, cls %f, total %f' %
(n_gt, n_correct, n_proposals, loss_x.data[0], loss_y.data[0],
loss_w.data[0], loss_h.data[0], loss_conf.data[0], loss_cls.data[0],
loss.data[0]))
return loss
def forward(self, output, target):
# Parameters
t0 = time.time()
nB = output.data.size(0)
nA = self.num_anchors
nC = self.num_classes
nH = output.data.size(2)
nW = output.data.size(3)
# Activation
output = output.view(nB, nA, (19+nC), nH, nW)
x0 = torch.sigmoid(output.index_select(2, torch.cuda.LongTensor([0])).view(nB, nA, nH, nW))
y0 = torch.sigmoid(output.index_select(2, torch.cuda.LongTensor([1])).view(nB, nA, nH, nW))
x1 = output.index_select(2, torch.cuda.LongTensor([2])).view(nB, nA, nH, nW)
y1 = output.index_select(2, torch.cuda.LongTensor([3])).view(nB, nA, nH, nW)
x2 = output.index_select(2, torch.cuda.LongTensor([4])).view(nB, nA, nH, nW)
y2 = output.index_select(2, torch.cuda.LongTensor([5])).view(nB, nA, nH, nW)
x3 = output.index_select(2, torch.cuda.LongTensor([6])).view(nB, nA, nH, nW)
y3 = output.index_select(2, torch.cuda.LongTensor([7])).view(nB, nA, nH, nW)
x4 = output.index_select(2, torch.cuda.LongTensor([8])).view(nB, nA, nH, nW)
y4 = output.index_select(2, torch.cuda.LongTensor([9])).view(nB, nA, nH, nW)
x5 = output.index_select(2, torch.cuda.LongTensor([10])).view(nB, nA, nH, nW)
y5 = output.index_select(2, torch.cuda.LongTensor([11])).view(nB, nA, nH, nW)
x6 = output.index_select(2, torch.cuda.LongTensor([12])).view(nB, nA, nH, nW)
y6 = output.index_select(2, torch.cuda.LongTensor([13])).view(nB, nA, nH, nW)
x7 = output.index_select(2, torch.cuda.LongTensor([14])).view(nB, nA, nH, nW)
y7 = output.index_select(2, torch.cuda.LongTensor([15])).view(nB, nA, nH, nW)
x8 = output.index_select(2, torch.cuda.LongTensor([16])).view(nB, nA, nH, nW)
y8 = output.index_select(2, torch.cuda.LongTensor([17])).view(nB, nA, nH, nW)
conf = torch.sigmoid(output.index_select(2, torch.cuda.LongTensor([18])).view(nB, nA, nH, nW))
mycls = output.index_select(2, torch.cuda.linspace(19,19+nC-1,nC))
mycls = mycls.view(nB*nA, nC, nH*nW).transpose(1,2).contiguous().view(nB*nA*nH*nW, nC)
t1 = time.time()
# Create pred boxes
pred_corners = torch.cuda.FloatTensor(18, nB*nA*nH*nW)
grid_x = torch.linspace(0, nW-1, nW).repeat(nH,1).repeat(nB*nA, 1, 1).view(nB*nA*nH*nW).cuda()
grid_y = torch.linspace(0, nH-1, nH).repeat(nW,1).t().repeat(nB*nA, 1, 1).view(nB*nA*nH*nW).cuda()
pred_corners[0] = (x0.data.view_as(grid_x) + grid_x) / nW
pred_corners[1] = (y0.data.view_as(grid_y) + grid_y) / nH
pred_corners[2] = (x1.data.view_as(grid_x) + grid_x) / nW
pred_corners[3] = (y1.data.view_as(grid_y) + grid_y) / nH
pred_corners[4] = (x2.data.view_as(grid_x) + grid_x) / nW
pred_corners[5] = (y2.data.view_as(grid_y) + grid_y) / nH
pred_corners[6] = (x3.data.view_as(grid_x) + grid_x) / nW
pred_corners[7] = (y3.data.view_as(grid_y) + grid_y) / nH
pred_corners[8] = (x4.data.view_as(grid_x) + grid_x) / nW
pred_corners[9] = (y4.data.view_as(grid_y) + grid_y) / nH
pred_corners[10] = (x5.data.view_as(grid_x) + grid_x) / nW
pred_corners[11] = (y5.data.view_as(grid_y) + grid_y) / nH
pred_corners[12] = (x6.data.view_as(grid_x) + grid_x) / nW
pred_corners[13] = (y6.data.view_as(grid_y) + grid_y) / nH
pred_corners[14] = (x7.data.view_as(grid_x) + grid_x) / nW
pred_corners[15] = (y7.data.view_as(grid_y) + grid_y) / nH
pred_corners[16] = (x8.data.view_as(grid_x) + grid_x) / nW
pred_corners[17] = (y8.data.view_as(grid_y) + grid_y) / nH
gpu_matrix = pred_corners.transpose(0,1).contiguous().view(-1,18)
pred_corners = utils.convert2cpu(gpu_matrix)
t2 = time.time()
# Build targets
nGT, nCorrect, coord_mask, conf_mask, cls_mask, tx0, tx1, tx2, tx3, tx4, tx5, tx6, tx7, tx8, ty0, ty1, ty2, ty3, ty4, ty5, ty6, ty7, ty8, tconf, tcls = \
build_targets(pred_corners, target.data, self.anchors, nA, nC, nH, nW, self.noobject_scale, self.object_scale, self.thresh, self.seen)
cls_mask = (cls_mask == 1)
nProposals = int((conf > 0.25).sum().data[0])
tx0 = tx0.cuda()
ty0 = ty0.cuda()
tx1 = tx1.cuda()
ty1 = ty1.cuda()
tx2 = tx2.cuda()
ty2 = ty2.cuda()
tx3 = tx3.cuda()
ty3 = ty3.cuda()
tx4 = tx4.cuda()
ty4 = ty4.cuda()
tx5 = tx5.cuda()
ty5 = ty5.cuda()
tx6 = tx6.cuda()
ty6 = ty6.cuda()
tx7 = tx7.cuda()
ty7 = ty7.cuda()
tx8 = tx8.cuda()
ty8 = ty8.cuda()
tconf = tconf.cuda()
tcls = tcls[cls_mask].long().cuda()
coord_mask = coord_mask.cuda()
conf_mask = conf_mask.cuda().sqrt()
cls_mask = cls_mask.view(-1, 1).repeat(1,nC).cuda()
mycls = mycls[cls_mask].view(-1, nC)
t3 = time.time()
# Create loss
loss_x0 = self.coord_scale * nn.MSELoss(size_average=False)(x0*coord_mask, tx0*coord_mask)/2.0
loss_y0 = self.coord_scale * nn.MSELoss(size_average=False)(y0*coord_mask, ty0*coord_mask)/2.0
loss_x1 = self.coord_scale * nn.MSELoss(size_average=False)(x1*coord_mask, tx1*coord_mask)/2.0
loss_y1 = self.coord_scale * nn.MSELoss(size_average=False)(y1*coord_mask, ty1*coord_mask)/2.0
loss_x2 = self.coord_scale * nn.MSELoss(size_average=False)(x2*coord_mask, tx2*coord_mask)/2.0
loss_y2 = self.coord_scale * nn.MSELoss(size_average=False)(y2*coord_mask, ty2*coord_mask)/2.0
loss_x3 = self.coord_scale * nn.MSELoss(size_average=False)(x3*coord_mask, tx3*coord_mask)/2.0
loss_y3 = self.coord_scale * nn.MSELoss(size_average=False)(y3*coord_mask, ty3*coord_mask)/2.0
loss_x4 = self.coord_scale * nn.MSELoss(size_average=False)(x4*coord_mask, tx4*coord_mask)/2.0
loss_y4 = self.coord_scale * nn.MSELoss(size_average=False)(y4*coord_mask, ty4*coord_mask)/2.0
loss_x5 = self.coord_scale * nn.MSELoss(size_average=False)(x5*coord_mask, tx5*coord_mask)/2.0
loss_y5 = self.coord_scale * nn.MSELoss(size_average=False)(y5*coord_mask, ty5*coord_mask)/2.0
loss_x6 = self.coord_scale * nn.MSELoss(size_average=False)(x6*coord_mask, tx6*coord_mask)/2.0
loss_y6 = self.coord_scale * nn.MSELoss(size_average=False)(y6*coord_mask, ty6*coord_mask)/2.0
loss_x7 = self.coord_scale * nn.MSELoss(size_average=False)(x7*coord_mask, tx7*coord_mask)/2.0
loss_y7 = self.coord_scale * nn.MSELoss(size_average=False)(y7*coord_mask, ty7*coord_mask)/2.0
loss_x8 = self.coord_scale * nn.MSELoss(size_average=False)(x8*coord_mask, tx8*coord_mask)/2.0
loss_y8 = self.coord_scale * nn.MSELoss(size_average=False)(y8*coord_mask, ty8*coord_mask)/2.0
loss_conf = nn.MSELoss(size_average=False)(conf*conf_mask, tconf*conf_mask)/2.0
loss_x = loss_x0 + loss_x1 + loss_x2 + loss_x3 + loss_x4 + loss_x5 + loss_x6 + loss_x7 + loss_x8
loss_y = loss_y0 + loss_y1 + loss_y2 + loss_y3 + loss_y4 + loss_y5 + loss_y6 + loss_y7 + loss_y8
loss_cls = self.class_scale * nn.CrossEntropyLoss(size_average=False)(cls, tcls)
loss = loss_x + loss_y + loss_conf + loss_cls
print('%d: nGT %d, recall %d, proposals %d, loss: x0: %f x %f, y0: %f y %f, conf %f, cls %f, total %f' % (self.seen, nGT, nCorrect, nProposals, loss_x0.data[0], loss_x.data[0], loss_y0.data[0], loss_y.data[0], loss_conf.data[0], loss_cls.data[0], loss.data[0]))
#else:
# loss = loss_x + loss_y + loss_conf
# print('%d: nGT %d, recall %d, proposals %d, loss: x %f, y %f, conf %f, total %f' % (self.seen, nGT, nCorrect, nProposals, loss_x.data[0], loss_y.data[0], loss_conf.data[0], loss.data[0]))
t4 = time.time()
if False:
print('-----------------------------------')
print(' activation : %f' % (t1 - t0))
print(' create pred_corners : %f' % (t2 - t1))
print(' build targets : %f' % (t3 - t2))
print(' create loss : %f' % (t4 - t3))
print(' total : %f' % (t4 - t0))
return loss