Exemplo n.º 1
0
        save_best_only=True,
        period=5,
    )
    reduce_lr = ReduceLROnPlateau(
        monitor="val_loss",
        factor=0.1,
        patience=3,
        verbose=1)
    early_stopping = EarlyStopping(
        monitor="val_loss", min_delta=0, patience=10, verbose=1
    )

    val_split = FLAGS.val_split
    with open(FLAGS.annotation_file) as f:
        lines = f.readlines()
    lines = ChangeToOtherMachine(lines)
    np.random.seed(42)
    np.random.shuffle(lines)
    np.random.seed(None)
    num_val = int(len(lines) * val_split)
    num_train = len(lines) - num_val

    # Train with frozen layers first, to get a stable loss.
    # Adjust num epochs to your dataset. This step is enough to obtain a not
    # bad model.
    if True:
        model.compile(
            optimizer=Adam(lr=1e-3),
            loss={
                # use custom yolo_loss Lambda layer.
                "yolo_loss": lambda y_true, y_pred: y_pred
Exemplo n.º 2
0
    reduce_lr = ReduceLROnPlateau(monitor='val_loss',
                                  factor=0.1,
                                  patience=3,
                                  verbose=1)
    early_stopping = EarlyStopping(monitor='val_loss',
                                   min_delta=0,
                                   patience=10,
                                   verbose=1)

    val_split = FLAGS.val_split
    with open(FLAGS.annotation_file) as f:
        lines = f.readlines()

    # This step makes sure that the path names correspond to the local machine
    # This is important if annotation and training are done on different machines (e.g. training on AWS)
    lines = ChangeToOtherMachine(lines, remote_machine='')
    np.random.shuffle(lines)
    num_val = int(len(lines) * val_split)
    num_train = len(lines) - num_val

    # Train with frozen layers first, to get a stable loss.
    # Adjust num epochs to your dataset. This step is enough to obtain a decent model.
    if True:
        model.compile(
            optimizer=Adam(lr=1e-3),
            loss={
                # use custom yolo_loss Lambda layer.
                'yolo_loss': lambda y_true, y_pred: y_pred
            })

        batch_size = 32
Exemplo n.º 3
0
    reduce_lr = ReduceLROnPlateau(monitor="val_loss",
                                  factor=0.1,
                                  patience=3,
                                  verbose=1)
    early_stopping = EarlyStopping(monitor="val_loss",
                                   min_delta=0,
                                   patience=10,
                                   verbose=1)

    val_split = FLAGS.val_split
    with open(FLAGS.annotation_file) as f:
        lines = f.readlines()

    # This step makes sure that the path names correspond to the local machine
    # This is important if annotation and training are done on different machines (e.g. training on AWS)
    lines = ChangeToOtherMachine(lines, repo="gtav-vision", remote_machine="")
    np.random.shuffle(lines)
    num_val = int(len(lines) * val_split)
    num_train = len(lines) - num_val

    # Train with frozen layers first, to get a stable loss.
    # Adjust num epochs to your dataset. This step is enough to obtain a decent model.
    frozen_callbacks = [logging, checkpoint]

    if _has_wandb:
        wandb.init(project="TrainYourOwnYOLO",
                   config=vars(FLAGS),
                   sync_tensorboard=False)
        wandb_callback = WandbCallback(save_model=False)
        frozen_callbacks.append(wandb_callback)