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Delete diffusionsfm/inference/predict.py
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diffusionsfm/inference/predict.py
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from diffusionsfm.inference.ddim import inference_ddim
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from diffusionsfm.utils.rays import (
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Rays,
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rays_to_cameras,
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rays_to_cameras_homography,
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)
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def predict_cameras(
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model,
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images,
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device,
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crop_parameters=None,
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num_patches_x=16,
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num_patches_y=16,
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additional_timesteps=(),
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calculate_intrinsics=False,
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max_num_images=None,
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mode=None,
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return_rays=False,
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use_homogeneous=False,
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seed=0,
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):
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"""
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Args:
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images (torch.Tensor): (N, C, H, W)
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crop_parameters (torch.Tensor): (N, 4) or None
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"""
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if calculate_intrinsics:
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ray_to_cam = rays_to_cameras_homography
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else:
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ray_to_cam = rays_to_cameras
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get_spatial_rays = Rays.from_spatial
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rays_final, rays_intermediate, pred_intermediate, _ = inference_ddim(
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model,
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images.unsqueeze(0),
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device,
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visualize=True,
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crop_parameters=crop_parameters.unsqueeze(0),
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num_patches_x=num_patches_x,
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num_patches_y=num_patches_y,
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pbar=False,
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eta=[1, 0],
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num_inference_steps=100,
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)
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spatial_rays = get_spatial_rays(
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rays_final[0],
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mode=mode,
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num_patches_x=num_patches_x,
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num_patches_y=num_patches_y,
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use_homogeneous=use_homogeneous,
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)
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pred_cam = ray_to_cam(
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spatial_rays,
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crop_parameters,
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num_patches_x=num_patches_x,
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num_patches_y=num_patches_y,
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depth_resolution=model.depth_resolution,
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average_centers=True,
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directions_from_averaged_center=True,
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)
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additional_predictions = []
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for t in additional_timesteps:
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ray = pred_intermediate[t]
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ray = get_spatial_rays(
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ray[0],
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mode=mode,
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num_patches_x=num_patches_x,
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num_patches_y=num_patches_y,
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use_homogeneous=use_homogeneous,
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)
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cam = ray_to_cam(
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ray,
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crop_parameters,
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num_patches_x=num_patches_x,
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num_patches_y=num_patches_y,
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average_centers=True,
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directions_from_averaged_center=True,
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)
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if return_rays:
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cam = (cam, ray)
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additional_predictions.append(cam)
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if return_rays:
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return (pred_cam, spatial_rays), additional_predictions
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return pred_cam, additional_predictions, spatial_rays
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