def __init__(self,
num_classes,
network='efficientdet-d0',
D_bifpn=3,
W_bifpn=88):
super(EfficientDetBiFPN, self).__init__()
self.backbone = EfficientNet.get_network_from_name(MODEL_MAP[network])
self.neck = BIFPN(in_channels=self.backbone.get_list_features()[-5:],
out_channels=W_bifpn,
stack=D_bifpn,
num_outs=5)
self.bbox_head = RetinaHead(num_classes=num_classes,
in_channels=W_bifpn)
self.anchors = Anchors()
self.regressBoxes = BBoxTransform()
self.clipBoxes = ClipBoxes()
for m in self.modules():
if isinstance(m, nn.Conv2d):
n = m.kernel_size[0] * m.kernel_size[1] * m.out_channels
m.weight.data.normal_(0, math.sqrt(2. / n))
elif isinstance(m, nn.BatchNorm2d):
m.weight.data.fill_(1)
m.bias.data.zero_()
self.freeze_bn()
def __init__(self,
num_classes,
network='efficientdet-d0',
D_bifpn=3,
W_bifpn=88,
D_class=3,
is_training=True,
threshold=0.01,
iou_threshold=0.5):
super(EfficientDet, self).__init__()
# self.backbone = EfficientNet.from_pretrained(MODEL_MAP[network])
self.backbone = EfficientNet.get_network_from_name(MODEL_MAP[network])
# print backbone parameters
# params = list(self.backbone.named_parameters())
# for param_key, param_value in params:
# print("{}, {}".format(param_key, param_value.shape))
#
# for features in self.backbone.get_list_features():
# print(features)
self.is_training = is_training
self.neck = BIFPN(in_channels=self.backbone.get_list_features()[-5:],
out_channels=W_bifpn,
stack=D_bifpn,
num_outs=5)
self.bbox_head = RetinaHead(num_classes=num_classes,
in_channels=W_bifpn)
self.anchors = Anchors()
self.regressBoxes = BBoxTransform()
self.clipBoxes = ClipBoxes()
self.threshold = threshold
self.iou_threshold = iou_threshold
for m in self.modules():
if isinstance(m, nn.Conv2d):
n = m.kernel_size[0] * m.kernel_size[1] * m.out_channels
m.weight.data.normal_(0, math.sqrt(2. / n))
elif isinstance(m, nn.BatchNorm2d):
m.weight.data.fill_(1)
m.bias.data.zero_()
self.freeze_bn()
self.criterion = FocalLoss()