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Metadata-Version: 2.1
Name: depth_pro
Version: 0.1
Summary: Inference/Network/Model code for Apple Depth Pro monocular depth estimation.
Project-URL: Homepage, https://github.com/apple/ml-depth-pro
Project-URL: Repository, https://github.com/apple/ml-depth-pro
Description-Content-Type: text/markdown
License-File: LICENSE
Requires-Dist: torch
Requires-Dist: torchvision
Requires-Dist: timm
Requires-Dist: numpy<2
Requires-Dist: pillow_heif
Requires-Dist: matplotlib
## Depth Pro: Sharp Monocular Metric Depth in Less Than a Second
This software project accompanies the research paper:
**Depth Pro: Sharp Monocular Metric Depth in Less Than a Second**,
*Aleksei Bochkovskii, Amaël Delaunoy, Hugo Germain, Marcel Santos, Yichao Zhou, Stephan R. Richter, and Vladlen Koltun*.
We present a foundation model for zero-shot metric monocular depth estimation. Our model, Depth Pro, synthesizes high-resolution depth maps with unparalleled sharpness and high-frequency details. The predictions are metric, with absolute scale, without relying on the availability of metadata such as camera intrinsics. And the model is fast, producing a 2.25-megapixel depth map in 0.3 seconds on a standard GPU. These characteristics are enabled by a number of technical contributions, including an efficient multi-scale vision transformer for dense prediction, a training protocol that combines real and synthetic datasets to achieve high metric accuracy alongside fine boundary tracing, dedicated evaluation metrics for boundary accuracy in estimated depth maps, and state-of-the-art focal length estimation from a single image.
The model in this repository is a reference implementation, which has been re-trained. Its performance is close to the model reported in the paper but does not match it exactly.
## Getting Started
We recommend setting up a virtual environment. Using e.g. miniconda, the `depth_pro` package can be installed via:
```bash
conda create -n depth-pro -y python=3.9
conda activate depth-pro
pip install -e .
```
To download pretrained checkpoints follow the code snippet below:
```bash
source get_pretrained_models.sh # Files will be downloaded to `checkpoints` directory.
```
### Running from commandline
We provide a helper script to directly run the model on a single image:
```bash
# Run prediction on a single image:
depth-pro-run -i ./data/example.jpg
# Run `depth-pro-run -h` for available options.
```
### Running from python
```python
from PIL import Image
import depth_pro
# Load model and preprocessing transform
model, transform = depth_pro.create_model_and_transforms()
model.eval()
# Load and preprocess an image.
image, _, f_px = depth_pro.load_rgb(image_path)
image = transform(image)
# Run inference.
prediction = model.infer(image, f_px=f_px)
depth = prediction["depth"] # Depth in [m].
focallength_px = prediction["focallength_px"] # Focal length in pixels.
```
### Evaluation (boundary metrics)
Our boundary metrics can be found under `eval/boundary_metrics.py` and used as follows:
```python
# for a depth-based dataset
boundary_f1 = SI_boundary_F1(predicted_depth, target_depth)
# for a mask-based dataset (image matting / segmentation)
boundary_recall = SI_boundary_Recall(predicted_depth, target_mask)
```
## Citation
If you find our work useful, please cite the following paper:
```bibtex
@article{Bochkovskii2024:arxiv,
author = {Aleksei Bochkovskii and Ama\"{e}l Delaunoy and Hugo Germain and Marcel Santos and
Yichao Zhou and Stephan R. Richter and Vladlen Koltun}
title = {Depth Pro: Sharp Monocular Metric Depth in Less Than a Second},
journal = {arXiv},
year = {2024},
}
```
## License
This sample code is released under the [LICENSE](LICENSE) terms.
The model weights are released under the [LICENSE](LICENSE) terms.
## Acknowledgements
Our codebase is built using multiple opensource contributions, please see [Acknowledgements](ACKNOWLEDGEMENTS.md) for more details.
Please check the paper for a complete list of references and datasets used in this work.
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