本文整理汇总了Python中mxnet.Symbol方法的典型用法代码示例。如果您正苦于以下问题：Python mxnet.Symbol方法的具体用法？Python mxnet.Symbol怎么用？Python mxnet.Symbol使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类mxnet的用法示例。
在下文中一共展示了mxnet.Symbol方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: get_symbol
# 需要导入模块: import mxnet [as 别名]
# 或者: from mxnet import Symbol [as 别名]
def get_symbol(num_classes=20, nms_thresh=0.5, force_suppress=False,
nms_topk=400, **kwargs):
"""
Single-shot multi-box detection with VGG 16 layers ConvNet
This is a modified version, with fc6/fc7 layers replaced by conv layers
And the network is slightly smaller than original VGG 16 network
This is the detection network
Parameters:
----------
num_classes: int
number of object classes not including background
nms_thresh : float
threshold of overlap for non-maximum suppression
force_suppress : boolean
whether suppress different class objects
nms_topk : int
apply NMS to top K detections
Returns:
----------
mx.Symbol
"""
net = get_symbol_train(num_classes)
cls_preds = net.get_internals()["multibox_cls_pred_output"]
loc_preds = net.get_internals()["multibox_loc_pred_output"]
anchor_boxes = net.get_internals()["multibox_anchors_output"]
cls_prob = mx.symbol.SoftmaxActivation(data=cls_preds, mode='channel', \
name='cls_prob')
out = mx.symbol.contrib.MultiBoxDetection(*[cls_prob, loc_preds, anchor_boxes], \
name="detection", nms_threshold=nms_thresh, force_suppress=force_suppress,
variances=(0.1, 0.1, 0.2, 0.2), nms_topk=nms_topk)
return out 示例2: get_symbol
# 需要导入模块: import mxnet [as 别名]
# 或者: from mxnet import Symbol [as 别名]
def get_symbol(num_classes=20, nms_thresh=0.5, force_suppress=False, nms_topk=400):
"""
Single-shot multi-box detection with VGG 16 layers ConvNet
This is a modified version, with fc6/fc7 layers replaced by conv layers
And the network is slightly smaller than original VGG 16 network
This is the detection network
Parameters:
----------
num_classes: int
number of object classes not including background
nms_thresh : float
threshold of overlap for non-maximum suppression
force_suppress : boolean
whether suppress different class objects
nms_topk : int
apply NMS to top K detections
Returns:
----------
mx.Symbol
"""
net = get_symbol_train(num_classes)
cls_preds = net.get_internals()["multibox_cls_pred_output"]
loc_preds = net.get_internals()["multibox_loc_pred_output"]
anchor_boxes = net.get_internals()["multibox_anchors_output"]
cls_prob = mx.symbol.SoftmaxActivation(data=cls_preds, mode='channel', \
name='cls_prob')
out = mx.symbol.contrib.MultiBoxDetection(*[cls_prob, loc_preds, anchor_boxes], \
name="detection", nms_threshold=nms_thresh, force_suppress=force_suppress,
variances=(0.1, 0.1, 0.2, 0.2), nms_topk=nms_topk)
return out 示例3: get_symbol
# 需要导入模块: import mxnet [as 别名]
# 或者: from mxnet import Symbol [as 别名]
def get_symbol(num_classes=20, nms_thresh=0.5, force_suppress=False, nms_topk=400):
"""
Single-shot multi-box detection with VGG 16 layers ConvNet
This is a modified version, with fc6/fc7 layers replaced by conv layers
And the network is slightly smaller than original VGG 16 network
This is the detection network
Parameters:
----------
num_classes: int
number of object classes not including background
nms_thresh : float
threshold of overlap for non-maximum suppression
force_suppress : boolean
whether suppress different class objects
nms_topk : int
apply NMS to top K detections
Returns:
----------
mx.Symbol
"""
net = get_symbol_train(num_classes)
print 33333
cls_preds = net.get_internals()["multibox_cls_pred_output"]
loc_preds = net.get_internals()["multibox_loc_pred_output"]
anchor_boxes = net.get_internals()["multibox_anchors_output"]
cls_prob = mx.symbol.SoftmaxActivation(data=cls_preds, mode='channel', \
name='cls_prob')
out = mx.symbol.contrib.MultiBoxDetection(*[cls_prob, loc_preds, anchor_boxes], \
name="detection", nms_threshold=nms_thresh, force_suppress=force_suppress,
variances=(0.1, 0.1, 0.2, 0.2), nms_topk=nms_topk)
return out 示例4: get_symbol
# 需要导入模块: import mxnet [as 别名]
# 或者: from mxnet import Symbol [as 别名]
def get_symbol(num_classes=20, nms_thresh=0.5, force_suppress=False,
nms_topk=400, **kwargs):
"""
Single-shot multi-box detection with VGG 16 layers ConvNet
This is a modified version, with fc6/fc7 layers replaced by conv layers
And the network is slightly smaller than original VGG 16 network
This is the detection network
Parameters:
----------
num_classes: int
number of object classes not including background
nms_thresh : float
threshold of overlap for non-maximum suppression
force_suppress : boolean
whether suppress different class objects
nms_topk : int
apply NMS to top K detections
Returns:
----------
mx.Symbol
"""
net = get_symbol_train(num_classes)
cls_preds = net.get_internals()["multibox_cls_pred_output"]
loc_preds = net.get_internals()["multibox_loc_pred_output"]
anchor_boxes = net.get_internals()["multibox_anchors_output"]
cls_prob = mx.symbol.SoftmaxActivation(data=cls_preds, mode='channel', \
name='cls_prob')
out = mx.contrib.symbol.MultiBoxDetection(*[cls_prob, loc_preds, anchor_boxes], \
name="detection", nms_threshold=nms_thresh, force_suppress=force_suppress,
variances=(0.1, 0.1, 0.2, 0.2), nms_topk=nms_topk)
return out 示例5: get_symbol
# 需要导入模块: import mxnet [as 别名]
# 或者: from mxnet import Symbol [as 别名]
def get_symbol(num_classes=20, nms_thresh=0.5, force_suppress=False, nms_topk=400):
"""
Single-shot multi-box detection with VGG 16 layers ConvNet
This is a modified version, with fc6/fc7 layers replaced by conv layers
And the network is slightly smaller than original VGG 16 network
This is the detection network
Parameters:
----------
num_classes: int
number of object classes not including background
nms_thresh : float
threshold of overlap for non-maximum suppression
force_suppress : boolean
whether suppress different class objects
nms_topk : int
apply NMS to top K detections
Returns:
----------
mx.Symbol
"""
net = get_symbol_train(num_classes)
cls_preds = net.get_internals()["multibox_cls_pred_output"]
loc_preds = net.get_internals()["multibox_loc_pred_output"]
anchor_boxes = net.get_internals()["multibox_anchors_output"]
cls_prob = mx.symbol.SoftmaxActivation(data=cls_preds, mode='channel', \
name='cls_prob')
out = mx.contrib.symbol.MultiBoxDetection(*[cls_prob, loc_preds, anchor_boxes], \
name="detection", nms_threshold=nms_thresh, force_suppress=force_suppress,
variances=(0.1, 0.1, 0.2, 0.2), nms_topk=nms_topk)
return out