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这个是清华某位大佬对论文《Looking to Listen at the Cocktail Party 》的一个复现。代码链接
网络结构如下图：
由于AVSpeech这个数据集里是一些视频的片段，而输入网络的是视频中的人脸区域。所以先要做人脸识别，并把人脸截取。
这个代码中使用了Python的一个pretrained的mtcnn的包直接做的。
def face_detect(file,detector,frame_path,cat_train,output_dir):name = file.replace('.jpg', '').split('-')log = cat_train.iloc[int(name[0])]x = log[3]y = log[4]img = cv2.imread('%s%s'%(frame_path,file))x = img.shape[1] * xy = img.shape[0] * yfaces = detector.detect_faces(img)# check if detected facesif(len(faces)==0):print('no face detect: '+file)return #no facebounding_box = bounding_box_check(faces,x,y)if(bounding_box == None):print('face is not related to given coord: '+file)returnprint(file," ",bounding_box)print(file," ",x, y)crop_img = img[bounding_box[1]:bounding_box[1] + bounding_box[3],bounding_box[0]:bounding_box[0]+bounding_box[2]]crop_img = cv2.resize(crop_img,(160,160))cv2.imwrite('%s/frame_'%output_dir + name[0] + '_' + name[1] + '.jpg', crop_img)#crop_img = cv2.cvtColor(crop_img, cv2.COLOR_BGR2RGB)#plt.imshow(crop_img)#plt.show()
以下是AV的model代码：
from keras.models import Sequential
from keras.layers import Input, Dense, Convolution2D,Bidirectional, concatenate
from keras.layers import Flatten, BatchNormalization, ReLU, Reshape, Lambda, TimeDistributed
from keras.models import Model
from keras.layers.recurrent import LSTM
from keras.initializers import he_normal, glorot_uniform
import tensorflow as tfdef AV_model(people_num=2):def UpSampling2DBilinear(size):return Lambda(lambda x: tf.image.resize(x, size, method=tf.image.ResizeMethod.BILINEAR))def sliced(x, index):return x[:, :, :, index]# --------------------------- AS start ---------------------------audio_input = Input(shape=(298, 257, 2))print('as_0:', audio_input.shape)as_conv1 = Convolution2D(96, kernel_size=(1, 7), strides=(1, 1), padding='same', dilation_rate=(1, 1), name='as_conv1')(audio_input)as_conv1 = BatchNormalization()(as_conv1)as_conv1 = ReLU()(as_conv1)print('as_1:', as_conv1.shape)as_conv2 = Convolution2D(96, kernel_size=(7, 1), strides=(1, 1), padding='same', dilation_rate=(1, 1), name='as_conv2')(as_conv1)as_conv2 = BatchNormalization()(as_conv2)as_conv2 = ReLU()(as_conv2)print('as_2:', as_conv2.shape)as_conv3 = Convolution2D(96, kernel_size=(5, 5), strides=(1, 1), padding='same', dilation_rate=(1, 1), name='as_conv3')(as_conv2)as_conv3 = BatchNormalization()(as_conv3)as_conv3 = ReLU()(as_conv3)print('as_3:', as_conv3.shape)as_conv4 = Convolution2D(96, kernel_size=(5, 5), strides=(1, 1), padding='same', dilation_rate=(2, 1), name='as_conv4')(as_conv3)as_conv4 = BatchNormalization()(as_conv4)as_conv4 = ReLU()(as_conv4)print('as_4:', as_conv4.shape)as_conv5 = Convolution2D(96, kernel_size=(5, 5), strides=(1, 1), padding='same', dilation_rate=(4, 1), name='as_conv5')(as_conv4)as_conv5 = BatchNormalization()(as_conv5)as_conv5 = ReLU()(as_conv5)print('as_5:', as_conv5.shape)as_conv6 = Convolution2D(96, kernel_size=(5, 5), strides=(1, 1), padding='same', dilation_rate=(8, 1), name='as_conv6')(as_conv5)as_conv6 = BatchNormalization()(as_conv6)as_conv6 = ReLU()(as_conv6)print('as_6:', as_conv6.shape)as_conv7 = Convolution2D(96, kernel_size=(5, 5), strides=(1, 1), padding='same', dilation_rate=(16, 1), name='as_conv7')(as_conv6)as_conv7 = BatchNormalization()(as_conv7)as_conv7 = ReLU()(as_conv7)print('as_7:', as_conv7.shape)as_conv8 = Convolution2D(96, kernel_size=(5, 5), strides=(1, 1), padding='same', dilation_rate=(32, 1), name='as_conv8')(as_conv7)as_conv8 = BatchNormalization()(as_conv8)as_conv8 = ReLU()(as_conv8)print('as_8:', as_conv8.shape)as_conv9 = Convolution2D(96, kernel_size=(5, 5), strides=(1, 1), padding='same', dilation_rate=(1, 1), name='as_conv9')(as_conv8)as_conv9 = BatchNormalization()(as_conv9)as_conv9 = ReLU()(as_conv9)print('as_9:', as_conv9.shape)as_conv10 = Convolution2D(96, kernel_size=(5, 5), strides=(1, 1), padding='same', dilation_rate=(2, 2), name='as_conv10')(as_conv9)as_conv10 = BatchNormalization()(as_conv10)as_conv10 = ReLU()(as_conv10)print('as_10:', as_conv10.shape)as_conv11 = Convolution2D(96, kernel_size=(5, 5), strides=(1, 1), padding='same', dilation_rate=(4, 4), name='as_conv11')(as_conv10)as_conv11 = BatchNormalization()(as_conv11)as_conv11 = ReLU()(as_conv11)print('as_11:', as_conv11.shape)as_conv12 = Convolution2D(96, kernel_size=(5, 5), strides=(1, 1), padding='same', dilation_rate=(8, 8), name='as_conv12')(as_conv11)as_conv12 = BatchNormalization()(as_conv12)as_conv12 = ReLU()(as_conv12)print('as_12:', as_conv12.shape)as_conv13 = Convolution2D(96, kernel_size=(5, 5), strides=(1, 1), padding='same', dilation_rate=(16, 16), name='as_conv13')(as_conv12)as_conv13 = BatchNormalization()(as_conv13)as_conv13 = ReLU()(as_conv13)print('as_13:', as_conv13.shape)as_conv14 = Convolution2D(96, kernel_size=(5, 5), strides=(1, 1), padding='same', dilation_rate=(32, 32), name='as_conv14')(as_conv13)as_conv14 = BatchNormalization()(as_conv14)as_conv14 = ReLU()(as_conv14)print('as_14:', as_conv14.shape)as_conv15 = Convolution2D(8, kernel_size=(1, 1), strides=(1, 1), padding='same', dilation_rate=(1, 1), name='as_conv15')(as_conv14)as_conv15 = BatchNormalization()(as_conv15)as_conv15 = ReLU()(as_conv15)print('as_15:', as_conv15.shape)AS_out = Reshape((298, 8 * 257))(as_conv15)print('AS_out:', AS_out.shape)# --------------------------- AS end ---------------------------# --------------------------- VS_model start ---------------------------VS_model = Sequential()VS_model.add(Convolution2D(256, kernel_size=(7, 1), strides=(1, 1), padding='same', dilation_rate=(1, 1), name='vs_conv1'))VS_model.add(BatchNormalization())VS_model.add(ReLU())VS_model.add(Convolution2D(256, kernel_size=(5, 1), strides=(1, 1), padding='same', dilation_rate=(1, 1), name='vs_conv2'))VS_model.add(BatchNormalization())VS_model.add(ReLU())VS_model.add(Convolution2D(256, kernel_size=(5, 1), strides=(1, 1), padding='same', dilation_rate=(2, 1), name='vs_conv3'))VS_model.add(BatchNormalization())VS_model.add(ReLU())VS_model.add(Convolution2D(256, kernel_size=(5, 1), strides=(1, 1), padding='same', dilation_rate=(4, 1), name='vs_conv4'))VS_model.add(BatchNormalization())VS_model.add(ReLU())VS_model.add(Convolution2D(256, kernel_size=(5, 1), strides=(1, 1), padding='same', dilation_rate=(8, 1), name='vs_conv5'))VS_model.add(BatchNormalization())VS_model.add(ReLU())VS_model.add(Convolution2D(256, kernel_size=(5, 1), strides=(1, 1), padding='same', dilation_rate=(16, 1), name='vs_conv6'))VS_model.add(BatchNormalization())VS_model.add(ReLU())VS_model.add(Reshape((75, 256, 1)))VS_model.add(UpSampling2DBilinear((298, 256)))VS_model.add(Reshape((298, 256)))# --------------------------- VS_model end ---------------------------video_input = Input(shape=(75, 1, 1792, people_num))AVfusion_list = [AS_out]for i in range(people_num):single_input = Lambda(sliced, arguments={'index': i})(video_input)VS_out = VS_model(single_input)AVfusion_list.append(VS_out)AVfusion = concatenate(AVfusion_list, axis=2)AVfusion = TimeDistributed(Flatten())(AVfusion)print('AVfusion:', AVfusion.shape)lstm = Bidirectional(LSTM(400, input_shape=(298, 8 * 257), return_sequences=True), merge_mode='sum')(AVfusion)print('lstm:', lstm.shape)fc1 = Dense(600, name="fc1", activation='relu', kernel_initializer=he_normal(seed=27))(lstm)print('fc1:', fc1.shape)fc2 = Dense(600, name="fc2", activation='relu', kernel_initializer=he_normal(seed=42))(fc1)print('fc2:', fc2.shape)fc3 = Dense(600, name="fc3", activation='relu', kernel_initializer=he_normal(seed=65))(fc2)print('fc3:', fc3.shape)complex_mask = Dense(257 * 2 * people_num, name="complex_mask", kernel_initializer=glorot_uniform(seed=87))(fc3)print('complex_mask:', complex_mask.shape)complex_mask_out = Reshape((298, 257, 2, people_num))(complex_mask)print('complex_mask_out:', complex_mask_out.shape)AV_model = Model(inputs=[audio_input, video_input], outputs=complex_mask_out)# # compile AV_model# AV_model.compile(optimizer='adam', loss='mse')return AV_model这个大佬太强了，自愧不如。
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