def __init__(self, num_classes, num_boxes, neg_pre_positive, batch_size):
super(MultiBoxLoss, self).__init__()
self.num_classes = num_classes
self.num_boxes = num_boxes
self.neg_pre_positive = neg_pre_positive
self.notequal = P.NotEqual()
self.less = P.Less()
self.tile = P.Tile()
self.reduce_sum = P.ReduceSum()
self.reduce_mean = P.ReduceMean()
self.expand_dims = P.ExpandDims()
self.smooth_l1_loss = P.SmoothL1Loss()
self.cross_entropy = SoftmaxCrossEntropyWithLogits()
self.maximum = P.Maximum()
self.minimum = P.Minimum()
self.sort_descend = P.TopK(True)
self.sort = P.TopK(True)
self.gather = P.GatherNd()
self.max = P.ReduceMax()
self.log = P.Log()
self.exp = P.Exp()
self.concat = P.Concat(axis=1)
self.reduce_sum2 = P.ReduceSum(keep_dims=True)
self.idx = Tensor(
np.reshape(np.arange(batch_size * num_boxes), (-1, 1)), ms.int32)
def __init__(self, config, batch_size, in_channels, feat_channels,
num_anchors, cls_out_channels):
super(RPN, self).__init__()
cfg_rpn = config
self.dtype = np.float32
self.ms_type = mstype.float32
self.num_bboxes = cfg_rpn.num_bboxes
self.slice_index = ()
self.feature_anchor_shape = ()
self.slice_index += (0, )
index = 0
for shape in cfg_rpn.feature_shapes:
self.slice_index += (self.slice_index[index] +
shape[0] * shape[1] * num_anchors, )
self.feature_anchor_shape += (shape[0] * shape[1] * num_anchors *
batch_size, )
index += 1
self.num_anchors = num_anchors
self.batch_size = batch_size
self.test_batch_size = cfg_rpn.test_batch_size
self.num_layers = 5
self.real_ratio = Tensor(np.ones((1, 1)).astype(self.dtype))
self.rpn_convs_list = nn.layer.CellList(
self._make_rpn_layer(self.num_layers, in_channels, feat_channels,
num_anchors, cls_out_channels))
self.transpose = P.Transpose()
self.reshape = P.Reshape()
self.concat = P.Concat(axis=0)
self.fill = P.Fill()
self.placeh1 = Tensor(np.ones((1, )).astype(self.dtype))
self.trans_shape = (0, 2, 3, 1)
self.reshape_shape_reg = (-1, 4)
self.reshape_shape_cls = (-1, )
self.rpn_loss_reg_weight = Tensor(
np.array(cfg_rpn.rpn_loss_reg_weight).astype(self.dtype))
self.rpn_loss_cls_weight = Tensor(
np.array(cfg_rpn.rpn_loss_cls_weight).astype(self.dtype))
self.num_expected_total = Tensor(
np.array(cfg_rpn.num_expected_neg * self.batch_size).astype(
self.dtype))
self.num_bboxes = cfg_rpn.num_bboxes
self.get_targets = BboxAssignSample(cfg_rpn, self.batch_size,
self.num_bboxes, False)
self.CheckValid = P.CheckValid()
self.sum_loss = P.ReduceSum()
self.loss_cls = P.SigmoidCrossEntropyWithLogits()
self.loss_bbox = P.SmoothL1Loss(beta=1.0 / 9.0)
self.squeeze = P.Squeeze()
self.cast = P.Cast()
self.tile = P.Tile()
self.zeros_like = P.ZerosLike()
self.loss = Tensor(np.zeros((1, )).astype(self.dtype))
self.clsloss = Tensor(np.zeros((1, )).astype(self.dtype))
self.regloss = Tensor(np.zeros((1, )).astype(self.dtype))
def __init__(self, config, batch_size, in_channels, feat_channels,
num_anchors, cls_out_channels):
super(RPN, self).__init__()
cfg_rpn = config
self.cfg = config
self.num_bboxes = cfg_rpn.num_bboxes
self.feature_anchor_shape = cfg_rpn.feature_shapes
self.feature_anchor_shape = self.feature_anchor_shape[0] * \
self.feature_anchor_shape[1] * num_anchors * batch_size
self.num_anchors = num_anchors
self.batch_size = batch_size
self.test_batch_size = cfg_rpn.test_batch_size
self.num_layers = 1
self.real_ratio = Tensor(np.ones((1, 1)).astype(np.float16))
self.use_sigmoid_cls = config.use_sigmoid_cls
if config.use_sigmoid_cls:
self.reshape_shape_cls = (-1, )
self.loss_cls = P.SigmoidCrossEntropyWithLogits()
cls_out_channels = 1
else:
self.reshape_shape_cls = (-1, cls_out_channels)
self.loss_cls = nn.SoftmaxCrossEntropyWithLogits(sparse=True,
reduction="none")
self.rpn_convs_list = self._make_rpn_layer(self.num_layers, in_channels, feat_channels,\
num_anchors, cls_out_channels)
self.transpose = P.Transpose()
self.reshape = P.Reshape()
self.concat = P.Concat(axis=0)
self.fill = P.Fill()
self.placeh1 = Tensor(np.ones((1, )).astype(np.float16))
self.trans_shape = (0, 2, 3, 1)
self.reshape_shape_reg = (-1, 4)
self.softmax = nn.Softmax()
self.rpn_loss_reg_weight = Tensor(
np.array(cfg_rpn.rpn_loss_reg_weight).astype(np.float16))
self.rpn_loss_cls_weight = Tensor(
np.array(cfg_rpn.rpn_loss_cls_weight).astype(np.float16))
self.num_expected_total = Tensor(
np.array(cfg_rpn.num_expected_neg * self.batch_size).astype(
np.float16))
self.num_bboxes = cfg_rpn.num_bboxes
self.get_targets = BboxAssignSample(cfg_rpn, self.batch_size,
self.num_bboxes, False)
self.CheckValid = P.CheckValid()
self.sum_loss = P.ReduceSum()
self.loss_bbox = P.SmoothL1Loss(beta=1.0 / 9.0)
self.squeeze = P.Squeeze()
self.cast = P.Cast()
self.tile = P.Tile()
self.zeros_like = P.ZerosLike()
self.loss = Tensor(np.zeros((1, )).astype(np.float16))
self.clsloss = Tensor(np.zeros((1, )).astype(np.float16))
self.regloss = Tensor(np.zeros((1, )).astype(np.float16))
self.print = P.Print()
def __init__(self,
config,
batch_size,
num_classes,
target_means=(0., 0., 0., 0.),
target_stds=(0.1, 0.1, 0.2, 0.2)):
super(RcnnCls, self).__init__()
cfg = config
self.rcnn_loss_cls_weight = Tensor(
np.array(cfg.rcnn_loss_cls_weight).astype(np.float16))
self.rcnn_loss_reg_weight = Tensor(
np.array(cfg.rcnn_loss_reg_weight).astype(np.float16))
self.rcnn_fc_out_channels = cfg.rcnn_fc_out_channels
self.target_means = target_means
self.target_stds = target_stds
self.num_classes = num_classes
self.in_channels = cfg.rcnn_in_channels
self.train_batch_size = batch_size
self.test_batch_size = cfg.test_batch_size
self.fpn_cls = FpnCls(self.in_channels, self.rcnn_fc_out_channels,
self.num_classes, cfg.roi_layer["out_size"])
self.relu = P.ReLU()
self.logicaland = P.LogicalAnd()
self.loss_cls = P.SoftmaxCrossEntropyWithLogits()
self.loss_bbox = P.SmoothL1Loss(beta=1.0)
self.loss_mask = P.SigmoidCrossEntropyWithLogits()
self.reshape = P.Reshape()
self.onehot = P.OneHot()
self.greater = P.Greater()
self.cast = P.Cast()
self.sum_loss = P.ReduceSum()
self.tile = P.Tile()
self.expandims = P.ExpandDims()
self.gather = P.GatherNd()
self.argmax = P.ArgMaxWithValue(axis=1)
self.on_value = Tensor(1.0, mstype.float32)
self.off_value = Tensor(0.0, mstype.float32)
self.value = Tensor(1.0, mstype.float16)
self.num_bboxes = (cfg.num_expected_pos_stage2 +
cfg.num_expected_neg_stage2) * batch_size
rmv_first = np.ones((self.num_bboxes, self.num_classes))
rmv_first[:, 0] = np.zeros((self.num_bboxes, ))
self.rmv_first_tensor = Tensor(rmv_first.astype(np.float16))
self.num_bboxes_test = cfg.rpn_max_num * cfg.test_batch_size
def __init__(self, network):
super(NetWithLoss, self).__init__()
self.loss = P.SmoothL1Loss()
self.network = network
def __init__(self,
config,
representation_size,
batch_size,
num_classes,
target_means=(0., 0., 0., 0.),
target_stds=(0.1, 0.1, 0.2, 0.2)):
super(Rcnn, self).__init__()
cfg = config
self.rcnn_loss_cls_weight = Tensor(
np.array(cfg.rcnn_loss_cls_weight).astype(np.float16))
self.rcnn_loss_reg_weight = Tensor(
np.array(cfg.rcnn_loss_reg_weight).astype(np.float16))
self.rcnn_fc_out_channels = cfg.rcnn_fc_out_channels
self.target_means = target_means
self.target_stds = target_stds
self.num_classes = num_classes
self.in_channels = cfg.rcnn_in_channels
self.train_batch_size = batch_size
self.test_batch_size = cfg.test_batch_size
self.use_ambigous_sample = cfg.use_ambigous_sample
shape_0 = (self.rcnn_fc_out_channels, representation_size)
weights_0 = initializer("XavierUniform",
shape=shape_0[::-1],
dtype=mstype.float16).to_tensor()
shape_1 = (self.rcnn_fc_out_channels, self.rcnn_fc_out_channels)
weights_1 = initializer("XavierUniform",
shape=shape_1[::-1],
dtype=mstype.float16).to_tensor()
self.shared_fc_0 = DenseNoTranpose(representation_size,
self.rcnn_fc_out_channels,
weights_0)
self.shared_fc_1 = DenseNoTranpose(self.rcnn_fc_out_channels,
self.rcnn_fc_out_channels,
weights_1)
cls_weight = initializer(
'Normal',
shape=[num_classes, self.rcnn_fc_out_channels][::-1],
dtype=mstype.float16).to_tensor()
reg_weight = initializer(
'Normal',
shape=[num_classes * 4, self.rcnn_fc_out_channels][::-1],
dtype=mstype.float16).to_tensor()
self.cls_scores = DenseNoTranpose(self.rcnn_fc_out_channels,
num_classes, cls_weight)
self.reg_scores = DenseNoTranpose(self.rcnn_fc_out_channels,
num_classes * 4, reg_weight)
self.flatten = P.Flatten()
self.relu = P.ReLU()
self.logicaland = P.LogicalAnd()
self.loss_cls = P.SoftmaxCrossEntropyWithLogits()
self.loss_bbox = P.SmoothL1Loss(beta=1.0)
self.reshape = P.Reshape()
self.onehot = P.OneHot()
self.greater = P.Greater()
self.equal = P.Equal()
self.cast = P.Cast()
self.sum_loss = P.ReduceSum()
self.tile = P.Tile()
self.expandims = P.ExpandDims()
self.gather = P.GatherNd()
self.argmax = P.ArgMaxWithValue(axis=1)
self.on_value = Tensor(1.0, mstype.float32)
self.off_value = Tensor(0.0, mstype.float32)
self.value = Tensor(1.0, mstype.float16)
self.num_bboxes = (cfg.num_expected_pos_stage2 +
cfg.num_expected_neg_stage2) * batch_size
if self.use_ambigous_sample:
self.num_bboxes = (cfg.num_expected_pos_stage2 +
cfg.num_expected_amb_stage2 +
cfg.num_expected_neg_stage2) * batch_size
rmv_first = np.ones((self.num_bboxes, self.num_classes))
rmv_first[:, 0] = np.zeros((self.num_bboxes, ))
self.rmv_first_tensor = Tensor(rmv_first.astype(np.float16))
self.num_bboxes_test = cfg.rpn_max_num * cfg.test_batch_size
range_max = np.arange(self.num_bboxes_test).astype(np.int32)
self.range_max = Tensor(range_max)
def __init__(self, beta=1.0):
super(SmoothL1Loss, self).__init__()
self.beta = beta
self.smooth_l1_loss = P.SmoothL1Loss(self.beta)
Tensor(np.ones((2, 4), np.int32))),
'desc_bprop': [[2]]}),
('ScatterNdUpdate', {
'block': P.ScatterNdUpdate(),
'desc_inputs': (Tensor(np.ones((2, 3), np.float32)),
Tensor(np.ones((2, 2), np.int32)),
Tensor(np.ones((2,), np.float32))),
'desc_bprop': [[2, 3]]}),
('ScatterNd', {
'block': P.ScatterNd(),
'desc_const': [(3, 3)],
'desc_inputs': (Tensor(np.ones((2, 2), np.int32)),
Tensor(np.ones((2,), np.int32))),
'desc_bprop': [[3, 3]]}),
('SmoothL1Loss', {
'block': P.SmoothL1Loss(),
'desc_inputs': [[256, 4], [256, 4]],
'desc_bprop': [[256, 4]]}),
('IOU', {
'block': P.IOU(),
'desc_inputs': [Tensor(np.ones((256, 4), np.float16)), Tensor(np.ones((128, 4), np.float16))],
'desc_bprop': [[128, 256]]}),
('Summary', {
'block': SummaryNet(),
'desc_inputs': [Tensor(np.array([1.1]).astype(np.float32)),
Tensor(np.array([1.2]).astype(np.float32))],
'skip': ['backward']}),
('ConfusionMulGrad_1', {
'block': P.ConfusionMulGrad(axis = [0], keep_dims = False),
'desc_inputs': [[3, 2], [3, 2], [3, 2]],
'desc_bprop': [[3, 2], [2]],
def __init__(self, sigma=1.0):
super(SmoothL1Loss, self).__init__()
self.sigma = sigma
self.smooth_l1_loss = P.SmoothL1Loss(self.sigma)
def __init__(self, sigma=1.0):
super(Net, self).__init__()
self.SmoothL1Loss = P.SmoothL1Loss(sigma)
def __init__(self, num_classes, anchors, anchors_mask, reduction=32, seen=0, coord_scale=1.0, no_object_scale=1.0,
object_scale=1.0, class_scale=1.0, thresh=0.5, head_idx=0.0):
super(YoloLoss, self).__init__()
self.num_classes = num_classes
self.num_anchors = len(anchors_mask)
self.anchor_step = len(anchors[0]) # each scale has step anchors
self.anchors = np.array(anchors, dtype=np.float32) / reduction # scale every anchor for every scale
self.tensor_anchors = Tensor(self.anchors, mstype.float32)
self.anchors_mask = anchors_mask
anchors_w = []
anchors_h = []
for i in range(len(anchors_mask)):
anchors_w.append(self.anchors[self.anchors_mask[i]][0])
anchors_h.append(self.anchors[self.anchors_mask[i]][1])
self.anchors_w = Tensor(np.array(anchors_w).reshape(len(self.anchors_mask), 1))
self.anchors_h = Tensor(np.array(anchors_h).reshape(len(self.anchors_mask), 1))
self.reduction = reduction
self.seen = seen
self.head_idx = head_idx
self.zero = Tensor(0)
self.coord_scale = coord_scale
self.no_object_scale = no_object_scale
self.object_scale = object_scale
self.class_scale = class_scale
self.thresh = thresh
self.info = {'avg_iou': 0, 'class': 0, 'obj': 0, 'no_obj': 0,
'recall50': 0, 'recall75': 0, 'obj_cur': 0, 'obj_all': 0,
'coord_xy': 0, 'coord_wh': 0}
self.shape = P.Shape()
self.reshape = P.Reshape()
self.sigmoid = P.Sigmoid()
self.zeros_like = P.ZerosLike()
self.concat0 = P.Concat(0)
self.concat0_2 = P.Concat(0)
self.concat0_3 = P.Concat(0)
self.concat0_4 = P.Concat(0)
self.concat1 = P.Concat(1)
self.concat1_2 = P.Concat(1)
self.concat1_3 = P.Concat(1)
self.concat1_4 = P.Concat(1)
self.concat2 = P.Concat(2)
self.concat2_2 = P.Concat(2)
self.concat2_3 = P.Concat(2)
self.concat2_4 = P.Concat(2)
self.tile = P.Tile()
self.transpose = P.Transpose()
self.cast = P.Cast()
self.exp = P.Exp()
self.sum = P.ReduceSum()
self.smooth_l1_loss = P.SmoothL1Loss()
self.bce = P.SigmoidCrossEntropyWithLogits()
self.ce = P.SoftmaxCrossEntropyWithLogits()
self.pt_linspace = PtLinspace()
self.one_hot = nn.OneHot(-1, self.num_classes, 1.0, 0.0)
self.squeeze_2 = P.Squeeze(2)
self.reduce_sum = P.ReduceSum()
self.select = P.Select()
self.iou = P.IOU()