def _add_roi_mask_head(
model, add_roi_mask_head_func, blob_in, dim_in, spatial_scale_in
):
"""Add a mask prediction head to the model."""
# Capture model graph before adding the mask head
bbox_net = copy.deepcopy(model.net.Proto())
# Add the mask head
blob_mask_head, dim_mask_head = add_roi_mask_head_func(
model, blob_in, dim_in, spatial_scale_in
)
# Add the mask output
blob_mask = mask_rcnn_heads.add_mask_rcnn_outputs(
model, blob_mask_head, dim_mask_head
)
if not model.train: # == inference
# Inference uses a cascade of box predictions, then mask predictions.
# This requires separate nets for box and mask prediction.
# So we extract the mask prediction net, store it as its own network,
# then restore model.net to be the bbox-only network
model.mask_net, blob_mask = c2_utils.SuffixNet(
'mask_net', model.net, len(bbox_net.op), blob_mask
)
model.net._net = bbox_net
loss_gradients = None
else:
loss_gradients = mask_rcnn_heads.add_mask_rcnn_losses(model, blob_mask)
return loss_gradients
def _add_roi_mask_head(model, add_roi_mask_head_func, blob_in, dim_in,
spatial_scale_in):
"""Add a mask prediction head to the model."""
# Capture model graph before adding the mask head
bbox_net = copy.deepcopy(model.net.Proto())
# Add the mask head
blob_mask_head, dim_mask_head = add_roi_mask_head_func(
model, blob_in, dim_in, spatial_scale_in)
# Add the mask output
blob_mask = mask_rcnn_heads.add_mask_rcnn_outputs(model, blob_mask_head,
dim_mask_head)
if not model.train: # == inference
# Inference uses a cascade of box predictions, then mask predictions.
# This requires separate nets for box and mask prediction.
# So we extract the mask prediction net, store it as its own network,
# then restore model.net to be the bbox-only network
model.mask_net, blob_mask = c2_utils.SuffixNet('mask_net', model.net,
len(bbox_net.op),
blob_mask)
model.net._net = bbox_net
loss_gradients = None
else:
loss_gradients = mask_rcnn_heads.add_mask_rcnn_losses(model, blob_mask)
return loss_gradients
def _add_roi_mask_head(
model, add_roi_mask_head_func, blob_in, dim_in, spatial_scale_in
):
"""Add a mask prediction head to the model."""
# Capture model graph before adding the mask head
bbox_net = copy.deepcopy(model.net.Proto())
# Add the mask head
blob_mask_head, dim_mask_head = add_roi_mask_head_func(
model, blob_in, dim_in, spatial_scale_in
)
# Add the mask output
blob_mask = mask_rcnn_heads.add_mask_rcnn_outputs(
model, blob_mask_head, dim_mask_head
)
if not model.train: # == inference
# Inference uses a cascade of box predictions, then mask predictions.
# This requires separate nets for box and mask prediction.
# So we extract the mask prediction net, store it as its own network,
# then restore model.net to be the bbox-only network
if cfg.MODEL.SIBLING_BACKBONE_ON and 'mask' in cfg.SIBLING.HEADS:
mask_net_temp, blob_mask = c2_utils.SuffixNet(
'mask_net_temp', model.net, len(bbox_net.op), blob_mask
)
model.mask_net, blob_mask = c2_utils.RenameNet(
"mask_net", mask_net_temp, cfg.SIBLING.PREFFIX, output=blob_mask, excluded_nodes=[core.ScopedName("mask_rois_fpn{}".format(i)) for i in xrange(cfg.FPN.ROI_MIN_LEVEL, cfg.FPN.ROI_MAX_LEVEL + 1)] + [core.ScopedName("keypoint_rois_idx_restore_int32"), str(blob_mask)]
)
model.AddParams([core.BlobReference(input_name) for op in model.mask_net.Proto().op for input_name in op.input if input_name[-2] == "_"])
del mask_net_temp
else:
model.mask_net, blob_mask = c2_utils.SuffixNet(
'mask_net', model.net, len(bbox_net.op), blob_mask
)
model.net._net = bbox_net
loss_gradients = None
else:
loss_gradients = mask_rcnn_heads.add_mask_rcnn_losses(model, blob_mask)
return loss_gradients
