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	---
	library_name: pytorch
	license: mit
	pipeline_tag: depth-estimation
	tags:
	- android

	---

	![](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/depth_anything_v2/web-assets/model_demo.png)

	# Depth-Anything-V2: Optimized for Mobile Deployment
	## Deep Convolutional Neural Network model for depth estimation


	Depth Anything is designed for estimating depth at each point in an image.

	This model is an implementation of Depth-Anything-V2 found [here](https://github.com/huggingface/transformers/tree/main/src/transformers/models/depth_anything).


	This repository provides scripts to run Depth-Anything-V2 on Qualcomm® devices.
	More details on model performance across various devices, can be found
	[here](https://aihub.qualcomm.com/models/depth_anything_v2).


	### Model Details

	- Model Type: Depth estimation
	- Model Stats:
	- Model checkpoint: DepthAnything_V2_Small
	- Input resolution: 518x518
	- Number of parameters: 24.8M
	- Model size: 94 MB

	\| Model \| Device \| Chipset \| Target Runtime \| Inference Time (ms) \| Peak Memory Range (MB) \| Precision \| Primary Compute Unit \| Target Model
	\|---\|---\|---\|---\|---\|---\|---\|---\|---\|
	\| Depth-Anything-V2 \| Samsung Galaxy S23 \| Snapdragon® 8 Gen 2 \| TFLITE \| 320.265 ms \| 2 - 52 MB \| FP16 \| NPU \| [Depth-Anything-V2.tflite](https://huggingface.co/qualcomm/Depth-Anything-V2/blob/main/Depth-Anything-V2.tflite) \|
	\| Depth-Anything-V2 \| Samsung Galaxy S23 \| Snapdragon® 8 Gen 2 \| QNN \| 378.409 ms \| 3 - 83 MB \| FP16 \| NPU \| [Depth-Anything-V2.so](https://huggingface.co/qualcomm/Depth-Anything-V2/blob/main/Depth-Anything-V2.so) \|
	\| Depth-Anything-V2 \| Samsung Galaxy S23 \| Snapdragon® 8 Gen 2 \| ONNX \| 238.814 ms \| 2 - 182 MB \| FP16 \| NPU \| [Depth-Anything-V2.onnx](https://huggingface.co/qualcomm/Depth-Anything-V2/blob/main/Depth-Anything-V2.onnx) \|
	\| Depth-Anything-V2 \| Samsung Galaxy S24 \| Snapdragon® 8 Gen 3 \| TFLITE \| 250.977 ms \| 0 - 244 MB \| FP16 \| NPU \| [Depth-Anything-V2.tflite](https://huggingface.co/qualcomm/Depth-Anything-V2/blob/main/Depth-Anything-V2.tflite) \|
	\| Depth-Anything-V2 \| Samsung Galaxy S24 \| Snapdragon® 8 Gen 3 \| QNN \| 287.329 ms \| 76 - 329 MB \| FP16 \| NPU \| [Depth-Anything-V2.so](https://huggingface.co/qualcomm/Depth-Anything-V2/blob/main/Depth-Anything-V2.so) \|
	\| Depth-Anything-V2 \| Samsung Galaxy S24 \| Snapdragon® 8 Gen 3 \| ONNX \| 187.475 ms \| 5 - 279 MB \| FP16 \| NPU \| [Depth-Anything-V2.onnx](https://huggingface.co/qualcomm/Depth-Anything-V2/blob/main/Depth-Anything-V2.onnx) \|
	\| Depth-Anything-V2 \| Snapdragon 8 Elite QRD \| Snapdragon® 8 Elite \| TFLITE \| 209.94 ms \| 0 - 270 MB \| FP16 \| NPU \| [Depth-Anything-V2.tflite](https://huggingface.co/qualcomm/Depth-Anything-V2/blob/main/Depth-Anything-V2.tflite) \|
	\| Depth-Anything-V2 \| Snapdragon 8 Elite QRD \| Snapdragon® 8 Elite \| QNN \| 274.456 ms \| 0 - 280 MB \| FP16 \| NPU \| Use Export Script \|
	\| Depth-Anything-V2 \| Snapdragon 8 Elite QRD \| Snapdragon® 8 Elite \| ONNX \| 152.637 ms \| 5 - 296 MB \| FP16 \| NPU \| [Depth-Anything-V2.onnx](https://huggingface.co/qualcomm/Depth-Anything-V2/blob/main/Depth-Anything-V2.onnx) \|
	\| Depth-Anything-V2 \| QCS8550 (Proxy) \| QCS8550 Proxy \| TFLITE \| 323.036 ms \| 1 - 59 MB \| FP16 \| NPU \| [Depth-Anything-V2.tflite](https://huggingface.co/qualcomm/Depth-Anything-V2/blob/main/Depth-Anything-V2.tflite) \|
	\| Depth-Anything-V2 \| QCS8550 (Proxy) \| QCS8550 Proxy \| QNN \| 227.663 ms \| 3 - 6 MB \| FP16 \| NPU \| Use Export Script \|
	\| Depth-Anything-V2 \| SA7255P ADP \| SA7255P \| TFLITE \| 1138.83 ms \| 0 - 269 MB \| FP16 \| NPU \| [Depth-Anything-V2.tflite](https://huggingface.co/qualcomm/Depth-Anything-V2/blob/main/Depth-Anything-V2.tflite) \|
	\| Depth-Anything-V2 \| SA8255 (Proxy) \| SA8255P Proxy \| TFLITE \| 329.941 ms \| 1 - 51 MB \| FP16 \| NPU \| [Depth-Anything-V2.tflite](https://huggingface.co/qualcomm/Depth-Anything-V2/blob/main/Depth-Anything-V2.tflite) \|
	\| Depth-Anything-V2 \| SA8255 (Proxy) \| SA8255P Proxy \| QNN \| 231.691 ms \| 3 - 6 MB \| FP16 \| NPU \| Use Export Script \|
	\| Depth-Anything-V2 \| SA8295P ADP \| SA8295P \| TFLITE \| 388.59 ms \| 1 - 273 MB \| FP16 \| NPU \| [Depth-Anything-V2.tflite](https://huggingface.co/qualcomm/Depth-Anything-V2/blob/main/Depth-Anything-V2.tflite) \|
	\| Depth-Anything-V2 \| SA8295P ADP \| SA8295P \| QNN \| 280.45 ms \| 0 - 15 MB \| FP16 \| NPU \| Use Export Script \|
	\| Depth-Anything-V2 \| SA8650 (Proxy) \| SA8650P Proxy \| TFLITE \| 326.538 ms \| 0 - 79 MB \| FP16 \| NPU \| [Depth-Anything-V2.tflite](https://huggingface.co/qualcomm/Depth-Anything-V2/blob/main/Depth-Anything-V2.tflite) \|
	\| Depth-Anything-V2 \| SA8650 (Proxy) \| SA8650P Proxy \| QNN \| 238.408 ms \| 3 - 5 MB \| FP16 \| NPU \| Use Export Script \|
	\| Depth-Anything-V2 \| SA8775P ADP \| SA8775P \| TFLITE \| 368.884 ms \| 1 - 269 MB \| FP16 \| NPU \| [Depth-Anything-V2.tflite](https://huggingface.co/qualcomm/Depth-Anything-V2/blob/main/Depth-Anything-V2.tflite) \|
	\| Depth-Anything-V2 \| SA8775P ADP \| SA8775P \| QNN \| 264.135 ms \| 0 - 10 MB \| FP16 \| NPU \| Use Export Script \|
	\| Depth-Anything-V2 \| QCS8450 (Proxy) \| QCS8450 Proxy \| TFLITE \| 369.58 ms \| 1 - 260 MB \| FP16 \| NPU \| [Depth-Anything-V2.tflite](https://huggingface.co/qualcomm/Depth-Anything-V2/blob/main/Depth-Anything-V2.tflite) \|
	\| Depth-Anything-V2 \| QCS8450 (Proxy) \| QCS8450 Proxy \| QNN \| 426.914 ms \| 0 - 274 MB \| FP16 \| NPU \| Use Export Script \|
	\| Depth-Anything-V2 \| Snapdragon X Elite CRD \| Snapdragon® X Elite \| QNN \| 228.152 ms \| 3 - 3 MB \| FP16 \| NPU \| Use Export Script \|
	\| Depth-Anything-V2 \| Snapdragon X Elite CRD \| Snapdragon® X Elite \| ONNX \| 272.007 ms \| 63 - 63 MB \| FP16 \| NPU \| [Depth-Anything-V2.onnx](https://huggingface.co/qualcomm/Depth-Anything-V2/blob/main/Depth-Anything-V2.onnx) \|




	## Installation

	This model can be installed as a Python package via pip.

	```bash
	pip install "qai-hub-models[depth_anything_v2]"
	```



	## Configure Qualcomm® AI Hub to run this model on a cloud-hosted device

	Sign-in to [Qualcomm® AI Hub](https://app.aihub.qualcomm.com/) with your
	Qualcomm® ID. Once signed in navigate to `Account -> Settings -> API Token`.

	With this API token, you can configure your client to run models on the cloud
	hosted devices.
	```bash
	qai-hub configure --api_token API_TOKEN
	```
	Navigate to [docs](https://app.aihub.qualcomm.com/docs/) for more information.



	## Demo off target

	The package contains a simple end-to-end demo that downloads pre-trained
	weights and runs this model on a sample input.

	```bash
	python -m qai_hub_models.models.depth_anything_v2.demo
	```

	The above demo runs a reference implementation of pre-processing, model
	inference, and post processing.

	NOTE: If you want running in a Jupyter Notebook or Google Colab like
	environment, please add the following to your cell (instead of the above).
	```
	%run -m qai_hub_models.models.depth_anything_v2.demo
	```


	### Run model on a cloud-hosted device

	In addition to the demo, you can also run the model on a cloud-hosted Qualcomm®
	device. This script does the following:
	* Performance check on-device on a cloud-hosted device
	* Downloads compiled assets that can be deployed on-device for Android.
	* Accuracy check between PyTorch and on-device outputs.

	```bash
	python -m qai_hub_models.models.depth_anything_v2.export
	```
	```
	Profiling Results
	------------------------------------------------------------
	Depth-Anything-V2
	Device : Samsung Galaxy S23 (13)
	Runtime : TFLITE
	Estimated inference time (ms) : 320.3
	Estimated peak memory usage (MB): [2, 52]
	Total # Ops : 635
	Compute Unit(s) : NPU (635 ops)
	```


	## How does this work?

	This [export script](https://aihub.qualcomm.com/models/depth_anything_v2/qai_hub_models/models/Depth-Anything-V2/export.py)
	leverages [Qualcomm® AI Hub](https://aihub.qualcomm.com/) to optimize, validate, and deploy this model
	on-device. Lets go through each step below in detail:

	Step 1: Compile model for on-device deployment

	To compile a PyTorch model for on-device deployment, we first trace the model
	in memory using the `jit.trace` and then call the `submit_compile_job` API.

	```python
	import torch

	import qai_hub as hub
	from qai_hub_models.models.depth_anything_v2 import Model

	# Load the model
	torch_model = Model.from_pretrained()

	# Device
	device = hub.Device("Samsung Galaxy S23")

	# Trace model
	input_shape = torch_model.get_input_spec()
	sample_inputs = torch_model.sample_inputs()

	pt_model = torch.jit.trace(torch_model, [torch.tensor(data[0]) for _, data in sample_inputs.items()])

	# Compile model on a specific device
	compile_job = hub.submit_compile_job(
	model=pt_model,
	device=device,
	input_specs=torch_model.get_input_spec(),
	)

	# Get target model to run on-device
	target_model = compile_job.get_target_model()

	```


	Step 2: Performance profiling on cloud-hosted device

	After compiling models from step 1. Models can be profiled model on-device using the
	`target_model`. Note that this scripts runs the model on a device automatically
	provisioned in the cloud. Once the job is submitted, you can navigate to a
	provided job URL to view a variety of on-device performance metrics.
	```python
	profile_job = hub.submit_profile_job(
	model=target_model,
	device=device,
	)

	```

	Step 3: Verify on-device accuracy

	To verify the accuracy of the model on-device, you can run on-device inference
	on sample input data on the same cloud hosted device.
	```python
	input_data = torch_model.sample_inputs()
	inference_job = hub.submit_inference_job(
	model=target_model,
	device=device,
	inputs=input_data,
	)
	on_device_output = inference_job.download_output_data()

	```
	With the output of the model, you can compute like PSNR, relative errors or
	spot check the output with expected output.

	Note: This on-device profiling and inference requires access to Qualcomm®
	AI Hub. [Sign up for access](https://myaccount.qualcomm.com/signup).



	## Run demo on a cloud-hosted device

	You can also run the demo on-device.

	```bash
	python -m qai_hub_models.models.depth_anything_v2.demo --on-device
	```

	NOTE: If you want running in a Jupyter Notebook or Google Colab like
	environment, please add the following to your cell (instead of the above).
	```
	%run -m qai_hub_models.models.depth_anything_v2.demo -- --on-device
	```


	## Deploying compiled model to Android


	The models can be deployed using multiple runtimes:
	- TensorFlow Lite (`.tflite` export): [This
	tutorial](https://www.tensorflow.org/lite/android/quickstart) provides a
	guide to deploy the .tflite model in an Android application.


	- QNN (`.so` export ): This [sample
	app](https://docs.qualcomm.com/bundle/publicresource/topics/80-63442-50/sample_app.html)
	provides instructions on how to use the `.so` shared library in an Android application.


	## View on Qualcomm® AI Hub
	Get more details on Depth-Anything-V2's performance across various devices [here](https://aihub.qualcomm.com/models/depth_anything_v2).
	Explore all available models on [Qualcomm® AI Hub](https://aihub.qualcomm.com/)


	## License
	* The license for the original implementation of Depth-Anything-V2 can be found [here](https://github.com/huggingface/transformers/blob/main/LICENSE).
	* The license for the compiled assets for on-device deployment can be found [here](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/Qualcomm+AI+Hub+Proprietary+License.pdf)



	## References
	* [Depth Anything V2](https://arxiv.org/abs/2406.09414)
	* [Source Model Implementation](https://github.com/huggingface/transformers/tree/main/src/transformers/models/depth_anything)



	## Community
	* Join [our AI Hub Slack community](https://aihub.qualcomm.com/community/slack) to collaborate, post questions and learn more about on-device AI.
	* For questions or feedback please [reach out to us](mailto:[email protected]).