Exemplo n.º 1
0
def interpret_sequence(model, sentences, data, attribution, records):
    model.zero_grad()
    for i, sentence in enumerate(sentences):
        seq_len = len(data[i])
        inp = data[i].unsqueeze(0)
        reference_indices = token_reference.generate_reference(
            seq_len, device=dev('cpu')).unsqueeze(0)
        pred = torch.sigmoid(model(inp))
        prob = pred.max().item()
        pred_ind = round(pred.argmax().item())
        if type(attribution) == LayerIntegratedGradients:
            attributions, delta = attribution.attribute(
                inp,
                reference_indices,
                n_steps=500,
                return_convergence_delta=True,
                target=label_batch[i])
        elif type(attribution) == Saliency:
            attributions = attribution.attribute(inp.long(),
                                                 label_batch[i].long())
            delta = -1
        print('pred: ', classes[pred_ind], '(', '%.2f' % prob, ')',
              ', delta: ', abs(delta.numpy()[0]))
        add_attr_viz(attributions, sentence, prob, pred_ind, label_batch[i],
                     delta, records)
Exemplo n.º 2
0
import utils
import model.net as net
from model.data_loader import DataLoader
from torch import device as dev

MODEL_DIR = 'experiments/base_model/'
DATA_DIR = 'data/'
params = utils.Params(MODEL_DIR + 'params.json')
params.vocab_size = 25
params.number_of_classes = 10
params.cuda = torch.cuda.is_available()

weights = MODEL_DIR + 'best.pth'

model = net.Net(params).cuda() if params.cuda else net.Net(params)
checkpoint = torch.load(weights, map_location=dev('cpu'))
model.load_state_dict(checkpoint['state_dict'])

data_loader = DataLoader(DATA_DIR, params)
data = data_loader.load_data(['train', 'val'], DATA_DIR)
train_data = data['train']
train_data_iterator = data_loader.data_iterator(train_data,
                                                params,
                                                shuffle=True)
train_batch, _ = next(train_data_iterator)

val_data = data['val']
val_data_iterator = data_loader.data_iterator(val_data, params, shuffle=False)
val_batch, _ = next(val_data_iterator)
explainer = shap.KernelExplainer(model.forward, train_batch[:1])
vals = train_batch[:10]
Exemplo n.º 3
0
def refine(
    image: np.array,
    depth: np.array,
    depth_range: Tuple[float, float],
    camera_param: Dict[str, float],
    loss_param: Dict,
    opt_param: Dict,
    depth_confidence: np.array = None,
    normal: np.array = None,
    depth_init: np.array = None,
    normal_init: np.array = None,
    depth_gt: np.array = None,
    logger: Logger = None,
    device: dev = dev('cpu')) -> Tuple[np.array, np.array]:
    """It implements one scale of the multi-scale pyramid of the function `refine_depth`.

    Args:
        image: reference image, arranged as an `(H, W)` or `(H, W, C)` array.
        depth: depth map to refine, arranged as an `(H, W)` array.
        depth_range: depth values must belong to the interval `[depth_range[0], depth_range[1]]`.
        camera_param: dictionary containing `f_x`, `f_y`, `c_x`, `c_y`.
        loss_param: dictionary containing the loss parameters.
        opt_param: dictionary containing the solver parameters.
        depth_confidence: confidence map associated to the depth map to refine. It must have entries in `[0, 1]`.
        normal: 3D normal map to refine, arranged as an `(H, W, 3)` array. It is ignored if the normal consistency loss is off.
        depth_init: initial guess for the refined depth map.
        normal_init: initial guess for the 3D normal map associated to the refined depth map.
        depth_gt: ground truth depth map, arranged as an `(H, W)` array.
        logger: logger to plot visual results and statistics at runtime.
        device: device on which the computation will take place.

    Returns:
        The refined depth map and the corresponding normal map.
    """

    # Check that the input maps have the same height and width of the input reference image.
    height = image.shape[0]
    width = image.shape[1]
    assert depth.shape == (height, width),\
        'Input depth map size not compatible with the reference image one.'
    if depth_confidence is not None:
        assert depth_confidence.shape == (height, width),\
            'Input depth map confidence size not compatible with the reference image one.'
    if normal is not None:
        assert normal.shape == (height, width, 3),\
            'Input normal map size not compatible with the reference image one.'
    if depth_init is not None:
        assert depth_init.shape == (height, width),\
            'Input initial depth map size not compatible with the reference image one.'
    if normal_init is not None:
        assert normal_init.shape == (height, width, 3),\
            'Input initial normal map size not compatible with the reference image one.'
    if depth_gt is not None:
        assert depth_gt.shape == (height, width),\
            'Ground truth depth size not compatible with the reference image one.'

    # Check the depth map data type.
    if depth.dtype == np.float32:
        depth_dtype = torch.float
    elif depth.dtype == np.float64:
        depth_dtype = torch.double
    else:
        raise TypeError(
            'The input depth map must be either of type double or float.')

    # Convert the reference image to gray scale.
    image_gray = image
    if image_gray.ndim == 3:
        image_gray = cvtColor(image_gray.astype(np.float32), COLOR_RGB2GRAY)
        image_gray = image_gray.astype(image.dtype)
        # The function `cvtColor` requires an input image of type uint8, uint16 or float32. Therefore, `image_gray` is
        # first converted to float32 (to minimize the precision loss) and then back to its original data type.

    # Plot.
    if logger is not None:
        logger.plot(texture=image,
                    depth=depth,
                    depth_init=depth_init,
                    depth_gt=depth_gt,
                    normal=normal,
                    normal_init=normal_init)

    # Convert the depth maps.
    idepth = depth2depth_inv(depth)
    idepth_init = depth2depth_inv(
        depth_init) if depth_init is not None else None
    idepth_range = depth_range2depth_inv_range(depth_range)

    # Convert the normal maps.
    inormal = None
    inormal_init = None
    if normal is not None:
        inormal = space2plane_normal(
            depth, normal, (camera_param['f_x'], camera_param['f_y']),
            (camera_param['c_x'], camera_param['c_y']))
    if normal_init is not None:
        inormal_init = space2plane_normal(
            depth_init if depth_init is not None else depth, normal_init,
            (camera_param['f_x'], camera_param['f_y']),
            (camera_param['c_x'], camera_param['c_y']))

    # Create the loss object.
    loss = Loss(image_gray,
                idepth,
                idepth_range,
                loss_param,
                idepth_confidence=depth_confidence,
                inormal=inormal,
                idepth_init=idepth_init,
                inormal_init=inormal_init,
                device=device).to(device=device, dtype=depth_dtype)

    # Set the maximum number of iterations.
    assert 'iter_max' in opt_param, 'Missing \'iter_max\' in `opt_param`.'
    iter_max = opt_param['iter_max']

    # Set the learning rate and define the optimization policy (i.e., with oir without scheduler).
    assert 'learning_rate' in opt_param, 'Missing \'learning_rate\' in `opt_param.'
    assert 'lr_start' in opt_param[
        'learning_rate'], 'Missing \'lr\' in `opt_param[\'learning_rate\']`.'
    assert 'lr_slot_nb' in opt_param[
        'learning_rate'], 'Missing \'slot_nb\' in `opt_param[\'learning_rate\']`.'
    learning_rate_start = opt_param['learning_rate']['lr_start']
    learning_rate_slot_nb = opt_param['learning_rate']['lr_slot_nb']

    # Define stopping condition.
    if learning_rate_slot_nb < 1:

        # The learning rate is kept constant.

        # The optimization terminates in one of the following event occurs:
        # - the relative depth change is smaller than `eps_stop`,
        # - the loss is not improved for more than `attempt_max` consecutive iterations,
        # - `iter_max` iterations have been performed.

        assert 'eps_stop' in opt_param, 'Missing \'eps_stop\' in `opt_param.'
        assert 'attempt_max' in opt_param, 'Missing \'attempt_max\' in `opt_param.'

        eps_stop = opt_param['eps_stop']
        attempt_max = opt_param['attempt_max']
        scheduler_step_size = iter_max * 2

    else:

        # The learning rate is dynamically updated.

        # The optimization terminates only when `iter_max` iterations have been performed.
        # However, in this scenario the learning rate is progressively decreased:
        # - the learning rate starts at `learning_rate_start`,
        # - it is decreased `learning_rate_slot_nb - 1` times by a factor `10`.

        eps_stop = 0.0
        attempt_max = float('inf')
        scheduler_step_size = int(
            math.ceil(float(iter_max) / float(learning_rate_slot_nb)))

    # Set the plotting step.
    assert 'plotting_step' in opt_param, 'Missing \'plotting_step\' in `opt_param.'
    plotting_step = opt_param['plotting_step']

    # Allocate an array to store the loss function values.
    loss_history = np.zeros(iter_max + 1)
    idepth_consistency_history = np.zeros(iter_max + 1)
    inormal_consistency_history = np.zeros(
        iter_max + 1) if loss_param['lambda_normal_consistency'] > 0 else None
    regularization_history = np.zeros(iter_max + 1)

    # Create an ADAM optimizer.
    optimizer = torch.optim.Adam(loss.parameters(), lr=learning_rate_start)

    # Create a learning rate scheduler.
    scheduler = torch.optim.lr_scheduler.StepLR(optimizer,
                                                scheduler_step_size,
                                                gamma=0.1)

    ####################################################################################################################
    ################################################# OPTIMIZATION #####################################################
    ####################################################################################################################

    # Lowest minimum value of the loss encountered during the optimization.
    loss_value_min = float('inf')

    # Number of consecutive iterations without improving `loss_value_min`.
    attempt_counter = 0

    # Relative change of the depth map between two consecutive iterations.
    relative_depth_change = float('inf')

    ################################################# CASE `i == 0` ####################################################

    # Evaluate the loss function.
    optimizer.zero_grad()
    loss_value, idepth_consistency_value, inormal_consistency_value, regularization_value = loss.forward(
    )

    # Log operations.
    with torch.no_grad():

        # Store the current value of the loss.
        idepth_consistency_history[0] = idepth_consistency_value
        if inormal_consistency_history is not None:
            inormal_consistency_history[0] = inormal_consistency_value
        regularization_history[0] = regularization_value
        loss_history[0] = loss_value.item()

        # Log the optimization status to the standard output.
        print(
            'Iteration: {:6}, Fails: {:3}, Rel. depth change: {:.6f}, Loss: {:.6f}'
            .format(0, attempt_counter, relative_depth_change,
                    loss_history[0]),
            flush=True)

        # Plot the optimization status.
        indexes = np.arange(0, 1)
        if logger is not None:
            depth_aux = depth_inv2depth(
                loss.idepth.data.to('cpu').squeeze().numpy(), depth_range)
            normal_aux = plane2space_normal(
                depth_aux,
                np.transpose(
                    loss.inormal.data.to('cpu').squeeze().numpy(),
                    (1, 2, 0)), (camera_param['f_x'], camera_param['f_y']),
                (camera_param['c_x'], camera_param['c_y']))
            logger.plot(
                depth_refined=depth_aux,
                normal_refined=normal_aux,
                idepth_consistency_loss=(indexes,
                                         idepth_consistency_history[indexes]),
                inormal_consistency_loss=(
                    (indexes, inormal_consistency_history[indexes])
                    if inormal_consistency_history is not None else None),
                regularization_loss=(indexes, regularization_history[indexes]),
                global_loss=(indexes, loss_history[indexes]))

    ################################################# CASE `i > 0` #####################################################

    for i in range(1, iter_max + 1):

        # Compute the gradient of each parameter of the loss (i.e., the depth map and the normal maps).
        loss_value.backward()

        # Store a copy of the old depth map.
        idepth_old = loss.idepth.clone().detach()

        # Update the old depth map.
        optimizer.step()

        # Update the optimizer learning rate.
        scheduler.step()

        # Without PyTorch tracking, project the new depth map into the specified depth range.
        with torch.no_grad():
            loss.idepth.data = loss.idepth.data.clamp(idepth_range[0],
                                                      idepth_range[1])

        # Evaluate the loss function at the new depth map and normal map.
        optimizer.zero_grad()
        loss_value, idepth_consistency_value, inormal_consistency_value, regularization_value = loss.forward(
        )

        # Without PyTorch tracking, perform some routines.
        with torch.no_grad():

            # Store the value of the loss evaluated at the new depth map.
            idepth_consistency_history[i] = idepth_consistency_value
            if inormal_consistency_history is not None:
                inormal_consistency_history[i] = inormal_consistency_value
            regularization_history[i] = regularization_value
            loss_history[i] = loss_value.item()

            # Compute the relative depth map change.
            relative_depth_change = torch.norm((idepth_old - loss.idepth).view(
                -1, 1)) / torch.norm(idepth_old.view(-1, 1))

            # Update the lowest encountered minimum.
            if loss_history[i] >= loss_value_min:
                attempt_counter = attempt_counter + 1
            else:
                attempt_counter = 0
                loss_value_min = loss_history[i]

            # Evaluate the stopping condition.
            stop_now = (relative_depth_change <= eps_stop) or (attempt_counter
                                                               >= attempt_max)

            if (i % plotting_step == 0) or stop_now or ((i + 1) > iter_max):

                # Log the optimization status to the standard output.
                print(
                    'Iteration: {:6}, Fails: {:3}, Rel. depth change: {:.6f}, Loss: {:.6f}'
                    .format(i, attempt_counter, relative_depth_change,
                            loss_history[i]),
                    flush=True)

                # Plot the optimization status.
                indexes = np.arange(i - (plotting_step - 1),
                                    i + 1)  # The index `i` is included.
                if logger is not None:
                    depth_aux = depth_inv2depth(
                        loss.idepth.data.to('cpu').squeeze().numpy(),
                        depth_range)
                    normal_aux = plane2space_normal(
                        depth_aux,
                        np.transpose(
                            loss.inormal.data.to('cpu').squeeze().numpy(),
                            (1, 2, 0)),
                        (camera_param['f_x'], camera_param['f_y']),
                        (camera_param['c_x'], camera_param['c_y']))
                    logger.plot(
                        depth_refined=depth_aux,
                        normal_refined=normal_aux,
                        idepth_consistency_loss=(
                            indexes, idepth_consistency_history[indexes]),
                        inormal_consistency_loss=(
                            (indexes, inormal_consistency_history[indexes]) if
                            inormal_consistency_history is not None else None),
                        regularization_loss=(indexes,
                                             regularization_history[indexes]),
                        global_loss=(indexes, loss_history[indexes]))

                # If the stopping condition is met, terminate.
                if stop_now:
                    break

    ####################################################################################################################
    ####################################################################################################################
    ####################################################################################################################

    # Extract the refined depth map.
    depth_refined = depth_inv2depth(
        loss.idepth.detach().to('cpu').numpy().squeeze(), depth_range)

    # Extract the normal map associated to the refined depth map.
    normal_refined = plane2space_normal(
        depth_refined,
        np.transpose(loss.inormal.detach().to('cpu').numpy().squeeze(),
                     (1, 2, 0)), (camera_param['f_x'], camera_param['f_y']),
        (camera_param['c_x'], camera_param['c_y']))

    return depth_refined, normal_refined
Exemplo n.º 4
0
def refine_depth(
    image: np.array,
    depth: np.array,
    depth_range: Tuple[float, float],
    camera_param: Dict[str, float],
    loss_param: List[Dict],
    opt_param: List[Dict],
    depth_confidence: np.array = None,
    normal: np.array = None,
    depth_init: np.array = None,
    normal_init: np.array = None,
    depth_gt: np.array = None,
    logger: Logger = None,
    device: dev = dev('cpu')) -> Tuple[np.array, np.array]:
    """It refines the input depth map and estimates the corresponding normal map in a multi-scale fashion.

    It refines the input depth map and estimate the corresponding normal map according to the method described
    in the following article:

    Mattia Rossi, Mireille El Gheche, Andreas Kuhn, Pascal Frossard,
    "Joint Graph-based Depth Refinement and Normal Estimation",
    in IEEE Computer Vision and Pattern Recognition Conference (CVPR), Seattle, WA, USA, 2020.

    If the input depth map comes together with a normal map, the latter can be refined as well (rather than estimated)
    by activating the normal consistency term (not described in the article).

    The `loss_param` input parameter contains a list of dictionaries, one for each scale. Each dictionary must contain
    the following keys:
    - lambda_depth_consistency: depth consistency term multiplier.
    - lambda_normal_consistency: normal consistency term multiplier.
    - lambda_regularization: depth regularization term multiplier.
    - gamma_regularization: depth regularization term internal multiplier.
    - window_size: search window size (window_size x window_size) to be used in the graph construction.
    - patch_size: patch size (patch_size x patch_size) to be used in the graph construction.
    - sigma_intensity: color difference standard deviation for patch comparison in the graph construction.
    - sigma_spatial: euclidean distance standard deviation for patch comparison in the graph construction.
    - degree_max: maximum number of per pixel neighbors in the graph.
    - regularization: regularization type (0 for NLTGV, 1 for our regularization).

    The `opt_param` input parameter contains a list of dictionaries, one for each scale. Each dictionary must contain
    the following keys:
    - iter_max: maximum number of iterations.
    - eps_stop: minimum relative change between the current and the previous iteration depth maps.
    - attempt_max: maximum number of iterations without improving the loss.
    - learning_rate: dictionary containing the following keys:
        - lr_start: initial learning rate.
        - lr_slot_nb: number of partitions; each partition adopts a learning rate which is 1/10 of those employed at
                      the previous partition; 0 excludes the relative depth map change stopping criterium.
    - plotting_step: number of steps between two plot updates of the logger.
    - depth_error_threshold: error threshold (in meters) to be used in the evaluation against the ground truth.

    Args:
        image: reference image, arranged as an `(H, W)` or `(H, W, C)` array.
        depth: depth map to refine, arranged as an `(H, W)` array.
        depth_range: depth values must belong to the interval `[depth_range[0], depth_range[1]]`.
        camera_param: dictionary containing `f_x`, `f_y`, `c_x`, `c_y`.
        loss_param: list of dictionaries, each one containing the loss parameters for a given scale.
        opt_param: list of dictionaries, each one containing the solver parameters for a given scale.
        depth_confidence: confidence map associated to the depth map to refine. It must have entries in `[0, 1]`.
        normal: 3D normal map to refine, arranged as an `(H, W, 3)` array. It is ignored if the normal consistency loss is off.
        depth_init: initial guess for the refined depth map.
        normal_init: initial guess for the 3D normal map associated to the refined depth map.
        depth_gt: ground truth depth map, arranged as an `(H, W)` array.
        logger: logger to plot visual results and statistics at runtime.
        device: device on which the computation will take place.

    Returns:
        The refined depth map and the corresponding normal map.
    """

    # Number of scales in the multi-scale pyramid.
    scale_nb = len(opt_param)

    # Allocate the multi-scale pyramid.
    scale_pyramid = [None] * scale_nb
    camera_param_pyramid = [None] * scale_nb
    image_pyramid = [None] * scale_nb
    depth_pyramid = [None] * scale_nb
    depth_confidence_pyramid = [None] * scale_nb
    normal_pyramid = [None] * scale_nb
    depth_init_pyramid = [None] * scale_nb
    normal_init_pyramid = [None] * scale_nb
    depth_gt_pyramid = [None] * scale_nb

    # Build the multi-scale pyramid.
    for i in range(scale_nb):

        if i > 0:

            # Compute the image dimensions for the current scale.
            height = int(round(scale_pyramid[i - 1][0] / 2.0))
            width = int(round(scale_pyramid[i - 1][1] / 2.0))
            scale_pyramid[i] = (height, width)

            # Compute the camera parameters for the current scale.
            x_ratio = scale_pyramid[i][1] / scale_pyramid[i - 1][1]
            y_ratio = scale_pyramid[i][0] / scale_pyramid[i - 1][0]
            camera_param_pyramid[i] = {
                'f_x': camera_param_pyramid[i - 1]['f_x'] * x_ratio,
                'f_y': camera_param_pyramid[i - 1]['f_y'] * y_ratio,
                'c_x': camera_param_pyramid[i - 1]['c_x'] * x_ratio,
                'c_y': camera_param_pyramid[i - 1]['c_y'] * y_ratio
            }

            # Downscale the image.
            image_pyramid[i] = resize_map(image_pyramid[i - 1],
                                          scale_pyramid[i],
                                          order=1)

            # Downscale the noisy/incomplete depth map.
            depth_pyramid[i] = resize_map(depth_pyramid[i - 1],
                                          scale_pyramid[i],
                                          order=0)

            # Downscale the noisy/incomplete depth map confidence.
            if depth_confidence_pyramid[i - 1] is not None:
                depth_confidence_pyramid[i] = resize_map(
                    depth_confidence_pyramid[i - 1], scale_pyramid[i], order=0)
            else:
                depth_confidence_pyramid[i] = None

            # Downscale the noisy/incomplete normal map.
            if normal_pyramid[i - 1] is not None:
                normal_pyramid[i] = resize_map(normal_pyramid[i - 1],
                                               scale_pyramid[i],
                                               order=0)

            else:
                normal_pyramid[i] = None

            # Downscale the initial depth map estimate (we need only the lowest scale).
            if depth_init_pyramid[i - 1] is not None:
                depth_init_pyramid[i] = resize_map(depth_init_pyramid[i - 1],
                                                   scale_pyramid[i],
                                                   order=0)
                depth_init_pyramid[i - 1] = None
            else:
                depth_init_pyramid[i] = None

            # Downscale the initial normal map estimate (we need only the lowest scale).
            if normal_init_pyramid[i - 1] is not None:
                normal_init_pyramid[i] = resize_map(normal_init_pyramid[i - 1],
                                                    scale_pyramid[i],
                                                    order=0)
                normal_init_pyramid[i - 1] = None
            else:
                normal_init_pyramid[i] = None

            # Downscale the ground truth depth map.
            if depth_gt_pyramid[i - 1] is not None:
                depth_gt_pyramid[i] = resize_map(depth_gt_pyramid[i - 1],
                                                 scale_pyramid[i],
                                                 order=0)
            else:
                depth_gt_pyramid[i] = None

        else:

            # Store the original image dimensions.
            scale_pyramid[i] = (image.shape[0], image.shape[1])

            # Store the original camera parameters.
            camera_param_pyramid[i] = camera_param

            # The lowest scale hosts the original data.
            image_pyramid[i] = image
            depth_pyramid[i] = depth
            depth_confidence_pyramid[i] = depth_confidence
            normal_pyramid[i] = normal
            depth_init_pyramid[i] = depth_init
            normal_init_pyramid[i] = normal_init
            depth_gt_pyramid[i] = depth_gt

    # Reverse the multi-scale pyramid.
    scale_pyramid.reverse()
    camera_param_pyramid.reverse()
    image_pyramid.reverse()
    depth_pyramid.reverse()
    depth_confidence_pyramid.reverse()
    normal_pyramid.reverse()
    depth_init_pyramid.reverse()  # It contains only the lowest scale.
    normal_init_pyramid.reverse()  # It contains only the lowest scale.
    depth_gt_pyramid.reverse()

    # Perform the multi-scale depth refinement.
    scale_name_pyramid = [None] * scale_nb
    depth_refined_pyramid = [None] * scale_nb
    normal_refined_pyramid = [None] * scale_nb
    for i in range(scale_nb):

        scale_name_pyramid[i] = ('{} ({}x{})'.format(i, scale_pyramid[i][0],
                                                     scale_pyramid[i][1]))
        print('Processing scale {}'.format(scale_name_pyramid[i]))

        # Setup a new plotting environment.
        if logger is not None:

            if depth_gt_pyramid[i] is not None:
                depth_plotting_range = (np.min(depth_gt_pyramid[i]).item(),
                                        np.max(depth_gt_pyramid[i]).item())
            else:
                depth_plotting_range = np.percentile(depth, [5, 95])
            logger.setup(env_name=scale_name_pyramid[i],
                         depth_range=depth_plotting_range)

        # Initialize the next scale with the refined depth map and the corresponding normal map from the previous scale.
        # The two maps are up-sampled first.
        if i > 0:
            depth_init_pyramid[i] = resize_map(depth_refined_pyramid[i - 1],
                                               scale_pyramid[i],
                                               order=0)
            if normal_refined_pyramid[i - 1] is not None:
                normal_init_pyramid[i] = resize_map(normal_refined_pyramid[i -
                                                                           1],
                                                    scale_pyramid[i],
                                                    order=0)

        # Refine the depth map of the current scale.
        depth_refined, normal_refined = refine(
            image_pyramid[i],
            depth_pyramid[i],
            depth_range,
            camera_param_pyramid[i],
            loss_param[i],
            opt_param[i],
            depth_confidence=depth_confidence_pyramid[i],
            depth_init=depth_init_pyramid[i],
            normal=normal_pyramid[i],
            normal_init=normal_init_pyramid[i],
            depth_gt=depth_gt_pyramid[i],
            logger=logger,
            device=device)

        depth_refined_pyramid[i] = depth_refined
        normal_refined_pyramid[i] = normal_refined

    # Extract the refined depth map and the corresponding normal map.
    depth_refined = depth_refined_pyramid[-1]
    normal_refined = normal_refined_pyramid[-1]

    # Delete all the plotting environments.
    if logger is not None:
        for i in range(scale_nb):
            logger.vis.delete_env(scale_name_pyramid[i])

    return depth_refined, normal_refined
Exemplo n.º 5
0
from typing import Tuple

import torch
from torch import cuda, device as dev

use_cuda = cuda.is_available()
device = dev('cuda' if use_cuda else 'cpu')


def zeros_target(dims: Tuple):
    return torch.zeros(size=dims).to(device)


def ones_target(dims: Tuple):
    return torch.ones(size=dims).to(device)
Exemplo n.º 6
0
def interpret_sequence_copy(model,
                            data_loader,
                            data_iterator,
                            attribution,
                            records,
                            num_steps,
                            verbose=True,
                            mlp=False):
    """
    copy to better handle data
    """
    model.zero_grad()
    # for n, param in model.named_parameters():
    # param.requires_grad = True
    # print(n, param.requires_grad)
    # exit()

    # t = trange(num_steps)
    for i in range(num_steps):
        if i > 5: break
        if (i % 200) == 0:
            # print("Step", i, "/", num_steps)
            custom_estimate(i + 1, num_steps)
        data, label_batch = next(data_iterator)
        for i in range(len(data)):
            seq_len = len(data[i])
            inp = data[i].unsqueeze(0)
            sentence = [
                data_loader.idx_to_vocab[x] for x in inp.squeeze().tolist()
            ]
            reference_indices = token_reference.generate_reference(
                seq_len, device=dev('cpu')).unsqueeze(0)
            pred = torch.sigmoid(model(inp))
            prob = pred.max().item()
            pred_ind = round(pred.argmax().item())
            if type(attribution) == LayerIntegratedGradients:
                # print(inp, label_batch[i])
                # exit()
                if mlp:
                    attributions, delta = attribution.attribute(
                        inp,
                        reference_indices,
                        n_steps=1,
                        return_convergence_delta=True,
                        target=label_batch[i])
                else:
                    attributions, delta = attribution.attribute(
                        inp,
                        reference_indices,
                        n_steps=50,
                        return_convergence_delta=True,
                        target=label_batch[i])
            elif type(attribution) == Saliency:
                print(type(inp), inp.dtype)
                inp = inp.to(torch.long)
                label_batch = label_batch.to(torch.long)
                # inp.requires_grad_().long()
                # label_batch = label_batch.requires_grad_().long()
                # print(inp)
                # print(inp.requires_grad)
                # exit()
                # attributions = attribution.attribute(inp, label_batch[i])
                attributions = torch.jit.trace(attribution.attribute,
                                               inp,
                                               label_batch[i],
                                               check_trace=False)
                print("Saliency is not suppose to work. This will never print")
                exit()
                delta = -1
            # print("Sequence:", sentence)
            if verbose:
                print('pred: ', classes[pred_ind], '(', '%.2f' % prob, ')',
                      ', delta: ', abs(delta.numpy()[0]), ", true:",
                      classes[label_batch[i]])
            add_attr_viz(attributions, sentence, prob, pred_ind,
                         label_batch[i], delta, records)