解释代码all_weights['dec_w1'] = tf.get_variable("dec1_w1", shape=[self.kernel_size[1], self.kernel_size[1], self.n_hidden[0], self.n_hidden[1]], initializer=layers.xavier_initializer_conv2d()) all_weights['dec_b1'] = tf.Variable(tf.zeros([self.n_hidden[0]], dtype=tf.float32)) all_weights['dec_w2'] = tf.get_variable("dec1_w2", shape=[self.kernel_size[0], self.kernel_size[0], 1, self.n_hidden[0]], initializer=layers.xavier_initializer_conv2d()) all_weights['dec_b2'] = tf.Variable(tf.zeros([1], dtype=tf.float32)) all_weights['enc_w3'] = tf.get_variable("enc_w3", shape=[self.kernel_size[3], self.kernel_size[3], self.n_hidden[2], self.n_hidden[3]], initializer=layers.xavier_initializer_conv2d()) all_weights['enc_b3'] = tf.Variable(tf.zeros([self.n_hidden[3]], dtype=tf.float32)) all_weights['Coef'] = tf.Variable(1.0e-4 * tf.ones([self.test_size, self.train_size], tf.float32), name='Coef') return all_weights

解决Tensorflow2.0 tf.keras.Model.load_weights() 报错处理问题

在TensorFlow 2.0中，tf.keras.Model.load_weights() 是一个非常有用的函数，用于加载预先训练好的权重到模型中，以便继续训练或进行预测。然而，在实际操作中，可能会遇到一些报错，本文将针对这些问题提供解决...

vgg16_weights_tf_dim_ordering_tf_kernels.h5

标题中的"vgg16_weights_tf_dim_ordering_tf_kernels.h5"是VGG16模型预训练权重的文件名。这个文件是以HDF5格式存储的，H5是一种高效的数据存储和交换格式，常用于深度学习模型的权重存储。在Keras框架中，预训练...

下面代码在tensorflow中出现了init() missing 1 required positional argument: 'cell'报错： class Model(): def init(self): self.img_seq_shape=(10,128,128,3) self.img_shape=(128,128,3) self.train_img=dataset # self.test_img=dataset_T patch = int(128 / 2 ** 4) self.disc_patch = (patch, patch, 1) self.optimizer=tf.keras.optimizers.Adam(learning_rate=0.001) self.build_generator=self.build_generator() self.build_discriminator=self.build_discriminator() self.build_discriminator.compile(loss='binary_crossentropy', optimizer=self.optimizer, metrics=['accuracy']) self.build_generator.compile(loss='binary_crossentropy', optimizer=self.optimizer) img_seq_A = Input(shape=(10,128,128,3)) #输入图片 img_B = Input(shape=self.img_shape) #目标图片 fake_B = self.build_generator(img_seq_A) #生成的伪目标图片 self.build_discriminator.trainable = False valid = self.build_discriminator([img_seq_A, fake_B]) self.combined = tf.keras.models.Model([img_seq_A, img_B], [valid, fake_B]) self.combined.compile(loss=['binary_crossentropy', 'mse'], loss_weights=[1, 100], optimizer=self.optimizer,metrics=['accuracy']) def build_generator(self): def res_net(inputs, filters): x = inputs net = conv2d(x, filters // 2, (1, 1), 1) net = conv2d(net, filters, (3, 3), 1) net = net + x # net=tf.keras.layers.LeakyReLU(0.2)(net) return net def conv2d(inputs, filters, kernel_size, strides): x = tf.keras.layers.Conv2D(filters, kernel_size, strides, 'same')(inputs) x = tf.keras.layers.BatchNormalization()(x) x = tf.keras.layers.LeakyReLU(alpha=0.2)(x) return x d0 = tf.keras.layers.Input(shape=(10, 128, 128, 3)) out= ConvRNN2D(filters=32, kernel_size=3,padding='same')(d0) out=tf.keras.layers.Conv2D(3,1,1,'same')(out) return keras.Model(inputs=d0, outputs=out) def build_discriminator(self): def d_layer(layer_input, filters, f_size=4, bn=True): d = tf.keras.layers.Conv2D(filters, kernel_size=f_size, strides=2, padding='same')(layer_input) if bn: d = tf.keras.layers.BatchNormalization(momentum=0.8)(d) d = tf.keras.layers.LeakyReLU(alpha=0.2)(d) return d img_A = tf.keras.layers.Input(shape=(10, 128, 128, 3)) img_B = tf.keras.layers.Input(shape=(128, 128, 3)) df = 32 lstm_out = ConvRNN2D(filters=df, kernel_size=4, padding="same")(img_A) lstm_out = tf.keras.layers.LeakyReLU(alpha=0.2)(lstm_out) combined_imgs = tf.keras.layers.Concatenate(axis=-1)([lstm_out, img_B]) d1 = d_layer(combined_imgs, df)#64 d2 = d_layer(d1, df * 2)#32 d3 = d_layer(d2, df * 4)#16 d4 = d_layer(d3, df * 8)#8 validity = tf.keras.layers.Conv2D(1, kernel_size=4, strides=1, padding='same')(d4) return tf.keras.Model([img_A, img_B], validity)

你在定义 Model 类时，没有传入参数 cell，但是在代码中使用了 ... validity = tf.keras.layers.Conv2D(1, kernel_size=4, strides=1, padding='same')(d4) return tf.keras.Model([img_A, img_B], validity)

下面代码在tensorflow中出现了init() missing 1 required positional argument: 'cell'报错，忽略def init(self)的错误： class Model(): def init(self): self.img_seq_shape=(10,128,128,3) self.img_shape=(128,128,3) self.train_img=dataset # self.test_img=dataset_T patch = int(128 / 2 ** 4) self.disc_patch = (patch, patch, 1) self.optimizer=tf.keras.optimizers.Adam(learning_rate=0.001) self.build_generator=self.build_generator() self.build_discriminator=self.build_discriminator() self.build_discriminator.compile(loss='binary_crossentropy', optimizer=self.optimizer, metrics=['accuracy']) self.build_generator.compile(loss='binary_crossentropy', optimizer=self.optimizer) img_seq_A = Input(shape=(10,128,128,3)) #输入图片 img_B = Input(shape=self.img_shape) #目标图片 fake_B = self.build_generator(img_seq_A) #生成的伪目标图片 self.build_discriminator.trainable = False valid = self.build_discriminator([img_seq_A, fake_B]) self.combined = tf.keras.models.Model([img_seq_A, img_B], [valid, fake_B]) self.combined.compile(loss=['binary_crossentropy', 'mse'], loss_weights=[1, 100], optimizer=self.optimizer,metrics=['accuracy']) def build_generator(self): def res_net(inputs, filters): x = inputs net = conv2d(x, filters // 2, (1, 1), 1) net = conv2d(net, filters, (3, 3), 1) net = net + x # net=tf.keras.layers.LeakyReLU(0.2)(net) return net def conv2d(inputs, filters, kernel_size, strides): x = tf.keras.layers.Conv2D(filters, kernel_size, strides, 'same')(inputs) x = tf.keras.layers.BatchNormalization()(x) x = tf.keras.layers.LeakyReLU(alpha=0.2)(x) return x d0 = tf.keras.layers.Input(shape=(10, 128, 128, 3)) out= ConvRNN2D(filters=32, kernel_size=3,padding='same')(d0) out=tf.keras.layers.Conv2D(3,1,1,'same')(out) return keras.Model(inputs=d0, outputs=out) def build_discriminator(self): def d_layer(layer_input, filters, f_size=4, bn=True): d = tf.keras.layers.Conv2D(filters, kernel_size=f_size, strides=2, padding='same')(layer_input) if bn: d = tf.keras.layers.BatchNormalization(momentum=0.8)(d) d = tf.keras.layers.LeakyReLU(alpha=0.2)(d) return d img_A = tf.keras.layers.Input(shape=(10, 128, 128, 3)) img_B = tf.keras.layers.Input(shape=(128, 128, 3)) df = 32 lstm_out = ConvRNN2D(filters=df, kernel_size=4, padding="same")(img_A) lstm_out = tf.keras.layers.LeakyReLU(alpha=0.2)(lstm_out) combined_imgs = tf.keras.layers.Concatenate(axis=-1)([lstm_out, img_B]) d1 = d_layer(combined_imgs, df)#64 d2 = d_layer(d1, df * 2)#32 d3 = d_layer(d2, df * 4)#16 d4 = d_layer(d3, df * 8)#8 validity = tf.keras.layers.Conv2D(1, kernel_size=4, strides=1, padding='same')(d4) return tf.keras.Model([img_A, img_B], validity)

这个错误提示是因为在你的Model类中，init方法应该被写成__init_... validity = tf.keras.layers.Conv2D(1, kernel_size=4, strides=1, padding='same')(d4) return tf.keras.Model([img_A, img_B], validity)

class DyCAConv(nn.Module): def init(self, inp, oup, kernel_size, stride, reduction=32): super(DyCAConv, self).init() self.pool_h = nn.AdaptiveAvgPool2d((None, 1)) self.pool_w = nn.AdaptiveAvgPool2d((1, None)) self.pool_h1 = nn.MaxPool2d((None, 1)) self.pool_w1 = nn.MaxPool2d((1, None)) mip = max(8, inp // reduction) self.conv1 = nn.Conv2d(inp, mip, kernel_size=1, stride=1, padding=0) self.bn1 = nn.BatchNorm2d(mip) self.act = h_swish() self.conv_h = nn.Conv2d(mip, inp, kernel_size=1, stride=1, padding=0) self.conv_w = nn.Conv2d(mip, inp, kernel_size=1, stride=1, padding=0) self.conv = nn.Sequential(nn.Conv2d(inp, oup, kernel_size, padding=kernel_size // 2, stride=stride), nn.BatchNorm2d(oup), nn.SiLU()) self.dynamic_weight_fc = nn.Sequential( nn.Linear(inp, 2), nn.Softmax(dim=1) ) def forward(self, x): identity = x n, c, h, w = x.size() x_h = self.pool_h(x) x_w = self.pool_w(x).permute(0, 1, 3, 2) x_h1 = self.pool_h1(x) x_w1 = self.pool_w1(x).permute(0, 1, 3, 2) y = torch.cat([x_h, x_w, x_h1, x_w1], dim=2) y = self.conv1(y) y = self.bn1(y) y = self.act(y) x_h, x_w, _, _ = torch.split(y, [h, w, h, w], dim=2) x_w = x_w.permute(0, 1, 3, 2) x_w1 = x_w1.permute(0, 1, 3, 2) a_h = self.conv_h(x_h).sigmoid() a_w = self.conv_w(x_w).sigmoid() a_w1 = self.conv_w(x_w1).sigmoid() # Compute dynamic weights x_avg_pool = nn.AdaptiveAvgPool2d(1)(x) x_avg_pool = x_avg_pool.view(x.size(0), -1) dynamic_weights = self.dynamic_weight_fc(x_avg_pool) out = identity * (dynamic_weights[:, 0].view(-1, 1, 1, 1) * a_w + dynamic_weights[:, 1].view(-1, 1, 1, 1) * a_h + dynamic_weights[:, 1].view(-1, 1, 1, 1) * a_w1) return self.conv(out)在里面修改一下，换成这个y = torch.cat([x_h+x_h1, x_w+x_w1], dim=2)

如果您想将原来代码中的y拼接成x_h+x_h1和x_w+x_w1，可以按照以下方式进行修改： # 将原来的y拆分成x_h, x_w, x_h1, x_w1 x_h, x_w, x_h1, x_w1 = torch.split(y, [h, w, h, w], dim=2) # 将x_h和x_h1相加，x_...

dec_attention_weights_2d = [head[0].tolist() for step in dec_attention_weight_seq for attn in step for blk in attn for head in blk] dec_attention_weights_filled = torch.tensor(pd.DataFrame(dec_attention_weights_2d).fillna(0.0).values) dec_attention_weights = dec_attention_weights_filled.reshape((-1, 2, num_layers, num_heads, num_steps) ) dec_self_attention_weights, dec_inter_attention_weights = \ dec_attention_weights.permute(1, 2, 3, 0, 4) dec_self_attention_weights.shape, dec_inter_attention_weights.shape (torch.Size([2, 4, 6, 10]), torch.Size([2, 4, 6, 10]))

这段代码是用于处理解码器的注意力权重的。首先，将注意力权重序列进行展平，得到一个包含每个注意力头部的注意力权重列表。然后，使用pandas库将注意力权重列表中的缺失值（NaN）替换为0.0，并将结果转换为PyTorch...

将下面代码使用ConvRNN2D层来替换ConvLSTM2D层，并在模块init.py中创建类‘convrnn’ class Model(): def init(self): self.img_seq_shape=(10,128,128,3) self.img_shape=(128,128,3) self.train_img=dataset # self.test_img=dataset_T patch = int(128 / 2 ** 4) self.disc_patch = (patch, patch, 1) self.optimizer=tf.keras.optimizers.Adam(learning_rate=0.001) self.build_generator=self.build_generator() self.build_discriminator=self.build_discriminator() self.build_discriminator.compile(loss='binary_crossentropy', optimizer=self.optimizer, metrics=['accuracy']) self.build_generator.compile(loss='binary_crossentropy', optimizer=self.optimizer) img_seq_A = Input(shape=(10,128,128,3)) #输入图片 img_B = Input(shape=self.img_shape) #目标图片 fake_B = self.build_generator(img_seq_A) #生成的伪目标图片 self.build_discriminator.trainable = False valid = self.build_discriminator([img_seq_A, fake_B]) self.combined = tf.keras.models.Model([img_seq_A, img_B], [valid, fake_B]) self.combined.compile(loss=['binary_crossentropy', 'mse'], loss_weights=[1, 100], optimizer=self.optimizer,metrics=['accuracy']) def build_generator(self): def res_net(inputs, filters): x = inputs net = conv2d(x, filters // 2, (1, 1), 1) net = conv2d(net, filters, (3, 3), 1) net = net + x # net=tf.keras.layers.LeakyReLU(0.2)(net) return net def conv2d(inputs, filters, kernel_size, strides): x = tf.keras.layers.Conv2D(filters, kernel_size, strides, 'same')(inputs) x = tf.keras.layers.BatchNormalization()(x) x = tf.keras.layers.LeakyReLU(alpha=0.2)(x) return x d0 = tf.keras.layers.Input(shape=(10, 128, 128, 3)) out= tf.keras.layers.ConvRNN2D(filters=32, kernel_size=3,padding='same')(d0) out=tf.keras.layers.Conv2D(3,1,1,'same')(out) return keras.Model(inputs=d0, outputs=out)

validity = Conv2D(1, kernel_size=4, strides=1, padding='same')(d4) return Model([img_A, img_B], validity) 在代码中，我们将ConvLSTM2D层替换为了ConvRNN2D层，并添加了新的模块convrnn。

def local_train(self, weights): original_w = weights self.local_model.set_encrypt_weights(weights) neg_one = self.public_key.encrypt(-1) for e in range(self.conf["local_epochs"]): print("start epoch ", e) #if e > 0 and e%2 == 0: # print("re encrypt") # self.local_model.encrypt_weights = Server.re_encrypt(self.local_model.encrypt_weights) idx = np.arange(self.data_x.shape[0]) batch_idx = np.random.choice(idx, self.conf['batch_size'], replace=False) #print(batch_idx) x = self.data_x[batch_idx] x = np.concatenate((x, np.ones((x.shape[0], 1))), axis=1) y = self.data_y[batch_idx].reshape((-1, 1)) #print((0.25 * x.dot(self.local_model.encrypt_weights) + 0.5 * y.transpose() * neg_one).shape) #print(x.transpose().shape) #assert(False) batch_encrypted_grad = x.transpose() * (0.25 * x.dot(self.local_model.encrypt_weights) + 0.5 * y.transpose() * neg_one) encrypted_grad = batch_encrypted_grad.sum(axis=1) / y.shape[0] for j in range(len(self.local_model.encrypt_weights)): self.local_model.encrypt_weights[j] -= self.conf["lr"] * encrypted_grad[j] weight_accumulators = [] #print(models.decrypt_vector(Server.private_key, weights)) for j in range(len(self.local_model.encrypt_weights)): weight_accumulators.append(self.local_model.encrypt_weights[j] - original_w[j]) return weight_accumulators

这段代码是联邦学习中的一个客户端的本地训练代码实现。该代码接收一个初始的模型参数weights作为输入，并使用该参数进行本地训练。在训练过程中，代码使用随机梯度下降算法对模型进行迭代更新，每次更新的步长由...

class PhysicsInformedNN: # Initialize the class def init(self, x0, u0, x1, u1, layers, dt, lb, ub, q, splitIdx1, splitIdx2, splitIdx3, otherParams): self.lb = lb self.ub = ub self.x0 = x0 self.x1 = x1 self.u0 = u0 self.u1 = u1 self.layers = layers self.dt = dt self.q = max(q, 1) self.splitIdx1 = splitIdx1 self.splitIdx2 = splitIdx2 self.splitIdx3 = splitIdx3 # Initialize NN self.weights, self.biases = self.initialize_NN(layers) self.otherParams = otherParams self.L = tf.Variable([2], dtype=tf.float32) self.RL = tf.Variable([0.039], dtype=tf.float32) self.C = tf.Variable([0.412], dtype=tf.float32) self.RC = tf.Variable([1.59], dtype=tf.float32) self.Rdson = tf.Variable([1.22], dtype=tf.float32) self.Rload1 = tf.Variable([1.22], dtype=tf.float32) self.Rload2 = tf.Variable([1.22], dtype=tf.float32) self.Rload3 = tf.Variable([1.22], dtype=tf.float32) self.vIn = tf.Variable([0.87], dtype=tf.float32) self.vF = tf.Variable([0.1], dtype=tf.float32) tmp = np.float32(np.loadtxt( 'Butcher_tableau/Butcher_IRK%d.txt' % (q), ndmin=2)) weights = np.reshape(tmp[0:q 2 + q], (q + 1, q)) self.IRK_alpha = weights[0:-1, :] self.IRK_beta = weights[-1:, :] self.IRK_times = tmp[q 2 + q:]

这段代码是一个名为PhysicsInformedNN的类的初始化方法。它接受了一些参数，包括x0、u0、x1、u1、layers、dt、lb、ub、q、splitIdx1、splitIdx2、splitIdx3和otherParams。在初始化方法中，它保存了lb和ub的值，这...

class DyCAConv(nn.Module): def init(self, inp, oup, kernel_size, stride, reduction=32): super(DyCAConv, self).init() self.pool_h = nn.AdaptiveAvgPool2d((None, 1)) self.pool_w = nn.AdaptiveAvgPool2d((1, None)) mip = max(8, inp // reduction) self.conv1 = nn.Conv2d(inp, mip, kernel_size=1, stride=1, padding=0) self.bn1 = nn.BatchNorm2d(mip) self.act = h_swish() self.conv_h = nn.Conv2d(mip, inp, kernel_size=1, stride=1, padding=0) self.conv_w = nn.Conv2d(mip, inp, kernel_size=1, stride=1, padding=0) self.conv = nn.Sequential(nn.Conv2d(inp, oup, kernel_size, padding=kernel_size // 2, stride=stride), nn.BatchNorm2d(oup), nn.SiLU()) self.dynamic_weight_fc = nn.Sequential( nn.Linear(inp, 2), nn.Softmax(dim=1) ) def forward(self, x): identity = x n, c, h, w = x.size() x_h = self.pool_h(x) x_w = self.pool_w(x).permute(0, 1, 3, 2) y = torch.cat([x_h, x_w], dim=2) y = self.conv1(y) y = self.bn1(y) y = self.act(y) x_h, x_w = torch.split(y, [h, w], dim=2) x_w = x_w.permute(0, 1, 3, 2) a_h = self.conv_h(x_h).sigmoid() a_w = self.conv_w(x_w).sigmoid() # Compute dynamic weights x_avg_pool = nn.AdaptiveAvgPool2d(1)(x) x_avg_pool = x_avg_pool.view(x.size(0), -1) dynamic_weights = self.dynamic_weight_fc(x_avg_pool) out = identity * (dynamic_weights[:, 0].view(-1, 1, 1, 1) * a_w + dynamic_weights[:, 1].view(-1, 1, 1, 1) * a_h) return self.conv(out) 在 self.pool_h = nn.AdaptiveAvgPool2d((None, 1)) self.pool_w = nn.AdaptiveAvgPool2d((1, None))这里继续添加 self.pool_w1 = nn.MaxPool2d((1, None)) self.pool_h1 = nn.MaxPool2d((None, 1))

inp 和 oup 分别是输入和输出通道数，kernel_size 是卷积核大小，stride 是步长，reduction 是通道缩减系数。模型中的 forward 方法实现了这个动态通道注意力卷积层的前向传播过程。在这个过程中，模型...

ef slide2(y): l = y.shape[0] y = tf.reshape(y, [1, -1, 1]) input = keras.Input(shape=(l, 1)) output = Conv1D(filters=1, kernel_size=3, padding='causal', activation='linear', trainable=False, use_bias=False)(input) model = keras.Model(inputs=input, outputs=output) weights_list = model.get_weights() weights = np.ones(3) / 3 weights_list[0] = weights.reshape((3, 1, 1)) model.set_weights(weights_list) result = model.predict(y) result = tf.reshape(result, [-1, 1]) return result怎么使用 tf.stop_gradient 函数来将其视为常数

weights_list[0] = weights.reshape((3, 1, 1)) model.set_weights(weights_list) result = model.predict(y) result = tf.reshape(result, [-1, 1]) return result 这样，output 就会被视为常数，不会...

这段代码def slide2(y): l = y.shape[0] y = tf.reshape(y, [1, -1, 1]) input = keras.Input(shape=(l, 1)) output = Conv1D(filters=1, kernel_size=3, padding='causal', activation='linear', trainable=False, use_bias=False)(input) output = tf.stop_gradient(output) # 将 output 视为常数 model = keras.Model(inputs=input, outputs=output) weights_list = model.get_weights() weights = np.ones(3) / 3 weights_list[0] = weights.reshape((3, 1, 1)) model.set_weights(weights_list) result = model.predict(y) result = tf.reshape(result, [-1, 1]) return result用在了循环内部，出现了WARNING:tensorflow:6 out of the last 6 calls to <function Model.make_predict_function.<locals>.predict_function at 0x000001B6B7A85EE0> triggered tf.function retracing.警告

weights_list[0] = weights.reshape((3, 1, 1)) model.set_weights(weights_list) # 在循环外定义 result result = np.zeros((y.shape[1], 1)) for i in range(y.shape[1]): x = y[:, :i+1, :] y_pred = ...

def add_layer(inputs, in_size, out_size, activation_function=None): Weights = tf.Variable(tf.truncated_normal([in_size, out_size], stddev=0.1)) Biases = tf.Variable(tf.constant(0.1, shape=[out_size])) xW_plus_b = tf.matmul(inputs, Weights) + Biases if activation_function is None: outputs = xW_plus_b else: outputs = activation_function(xW_plus_b) return outputs这段代码含义

首先，该函数定义了神经网络层的权重矩阵Weights和偏置向量Biases，并用tf.Variable()将其作为变量进行初始化。其中，Weights是一个in_size行，out_size列的张量，通过tf.truncated_normal()函数产生服从正态分布的...

def fc_layer(self, bottom, name): with tf.variable_scope(name): shape = bottom.get_shape().as_list() dim = 1 for d in shape[1:]: dim *= d x = tf.reshape(bottom, [-1, dim]) weights = self.get_fc_weight(name) biases = self.get_bias(name) # Fully connected layer. Note that the '+' operation automatically # broadcasts the biases. fc = tf.nn.bias_add(tf.matmul(x, weights), biases) return fc

其中，bottom表示输入数据，name是该层的名称，shape变量记录了bottom的形状，dim变量计算了bottom的总特征数，x变量是将bottom变形后的结果，weights变量是该层的权重参数，biases变量是该层的偏置参数，tf.nn.bias...

解释这行代码weights = tf.compat.v1.get_variable("w", [1, 1, 16, 32], initializer=tf.compat.v1.truncated_normal_initializer(stddev=1e-3))

这行代码定义了一个变量weights，使用了 TensorFlow 的 get_variable 方法来获取一个名为"w"的变量。该变量是一个 shape 为 [1, 1, 16, 32] 的四维张量，即它是一个尺寸为 1x1x16x32 的张量，其中1表示此维度上的...

解释这行代码 with tf.compat.v1.variable_scope('conv1'): weights = tf.compat.v1.get_variable("w", [1, 1, 32, 32], initializer=tf.compat.v1.truncated_normal_initializer(stddev=1e-3))

这行代码是在定义一个卷积层，命名为conv1，并且创建一个名为"weights"的变量，其shape为[1,1,32,32]，采用使用截断正态分布初始化方法，标准差为1e-3。实际上这是一个tensorflow的变量声明方式，用于存储卷积层的...

对以下代码进行注解 def tiled_conv_layer(input_img, tiling_factor, tile_size, kernel_size, name='tiling_conv', regularizer=None, nonneg=False): dims = input_img.get_shape().as_list() with tf.variable_scope(name): kernel_lists = [[tf.get_variable('kernel_%d%d'%(i,j), shape=(kernel_size, kernel_size, 1, 1), initializer=tf.contrib.layers.xavier_initializer()) for i in range(tiling_factor)] for j in range(tiling_factor)] pad_one, pad_two = np.ceil((tile_size - kernel_size)/2).astype(np.uint32), np.floor((tile_size - kernel_size)//2).astype(np.uint32) kernels_pad = [[tf.pad(kernel, [[pad_one, pad_two], [pad_one, pad_two], [0,0], [0,0]]) for kernel in kernels] for kernels in kernel_lists] #[tf.summary.image('kernel_%d%d'%(i,j), tf.transpose(kernel, [2,0,1,3])) for j, kernel_list in enumerate(kernels_pad) for i, kernel in enumerate(kernel_list) ] psf = tf.concat([tf.concat(kernel_list, axis=0) for kernel_list in kernels_pad], axis=1) if regularizer is not None: tf.contrib.layers.apply_regularization(regularizer, weights_list=[tf.transpose(psf, [2,0,1,3])]) if nonneg: psf = tf.abs(psf) tf.summary.image("tiled_psf", tf.expand_dims(tf.squeeze(psf, -1), 0)) img_pad = np.ceil(tile_size * tiling_factor / 2).astype(np.uint32) input_img_pad = tf.pad(input_img, [[0,0],[img_pad,img_pad],[img_pad,img_pad],[0,0]]) output_img = fft_conv2d(input_img, psf) #output_img = tf.slice(output_img, [0,img_pad,img_pad,0], [-1,dims[1],dims[2],-1]) return output_img

- 创建一个包含tiling_factor x tiling_factor个卷积核的列表，每个卷积核大小为kernel_size x kernel_size x 1 x 1。这些卷积核的初始化使用了Xavier初始化器。 - 计算pad_one和pad_two两个值，用于对卷积核进行...

with tf.name_scope('final_training_ops'): weights = tf.Variable( tf.truncated_normal([BOTTLENECK_TENSOR_SIZE, n_classes], stddev=0.1))

The variable has a shape of [BOTTLENECK_TENSOR_SIZE, n_classes], where BOTTLENECK_TENSOR_SIZE is the size of the bottleneck tensor and n_classes is the number of classes in the classification task....

将下面代码修改成ros2代码。 model_name = rospy.get_param('model_name', 'erfnet_road') weights_name = rospy.get_param('weights_name', 'weights_erfnet_road.pth') self.resize_factor = rospy.get_param('resize_factor', 5) self.debug = rospy.get_param('debug', True) self.with_road = rospy.get_param('with_road', True) queue_size = rospy.get_param('queue_size', 10)

queue_size = self.get_parameter('queue_size').get_parameter_value().integer_value def main(args=None): rclpy.init(args=args) node = MyNode() rclpy.spin(node) rclpy.shutdown() if __name__ == '__...

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解释这行代码weights = tf.compat.v1.get_variable("w", [1, 1, 16, 32], initializer=tf.compat.v1.truncated_normal_initializer(stddev=1e-3))

解释这行代码 with tf.compat.v1.variable_scope('conv1'): weights = tf.compat.v1.get_variable("w", [1, 1, 32, 32], initializer=tf.compat.v1.truncated_normal_initializer(stddev=1e-3))

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