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library_name: pytorch
license: other
tags:
- backbone
- android
pipeline_tag: video-classification
---
![](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/resnet_2plus1d/web-assets/model_demo.png)
# ResNet-2Plus1D: Optimized for Mobile Deployment
## Sports and human action recognition in videos
ResNet (2+1)D Convolutions is a network which explicitly factorizes 3D convolution into two separate and successive operations, a 2D spatial convolution and a 1D temporal convolution. It used for video understanding applications.
This model is an implementation of ResNet-2Plus1D found [here](https://github.com/pytorch/vision/blob/main/torchvision/models/video/resnet.py).
This repository provides scripts to run ResNet-2Plus1D on Qualcomm® devices.
More details on model performance across various devices, can be found
[here](https://aihub.qualcomm.com/models/resnet_2plus1d).
### Model Details
- **Model Type:** Model_use_case.video_classification
- **Model Stats:**
- Model checkpoint: Kinetics-400
- Input resolution: 112x112
- Number of parameters: 31.5M
- Model size (float): 120 MB
- Model size (w8a8): 30.8 MB
| Model | Precision | Device | Chipset | Target Runtime | Inference Time (ms) | Peak Memory Range (MB) | Primary Compute Unit | Target Model
|---|---|---|---|---|---|---|---|---|
| ResNet-2Plus1D | float | QCS8275 (Proxy) | Qualcomm® QCS8275 (Proxy) | TFLITE | 736.652 ms | 0 - 195 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.tflite) |
| ResNet-2Plus1D | float | QCS8275 (Proxy) | Qualcomm® QCS8275 (Proxy) | QNN_DLC | 81.891 ms | 0 - 181 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.dlc) |
| ResNet-2Plus1D | float | QCS8450 (Proxy) | Qualcomm® QCS8450 (Proxy) | TFLITE | 459.478 ms | 0 - 272 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.tflite) |
| ResNet-2Plus1D | float | QCS8450 (Proxy) | Qualcomm® QCS8450 (Proxy) | QNN_DLC | 26.954 ms | 2 - 247 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.dlc) |
| ResNet-2Plus1D | float | QCS8550 (Proxy) | Qualcomm® QCS8550 (Proxy) | TFLITE | 398.418 ms | 0 - 3 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.tflite) |
| ResNet-2Plus1D | float | QCS8550 (Proxy) | Qualcomm® QCS8550 (Proxy) | QNN_DLC | 12.863 ms | 2 - 4 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.dlc) |
| ResNet-2Plus1D | float | QCS8550 (Proxy) | Qualcomm® QCS8550 (Proxy) | ONNX | 11.931 ms | 0 - 64 MB | NPU | [ResNet-2Plus1D.onnx.zip](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.onnx.zip) |
| ResNet-2Plus1D | float | QCS9075 (Proxy) | Qualcomm® QCS9075 (Proxy) | TFLITE | 392.239 ms | 0 - 195 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.tflite) |
| ResNet-2Plus1D | float | QCS9075 (Proxy) | Qualcomm® QCS9075 (Proxy) | QNN_DLC | 21.602 ms | 0 - 192 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.dlc) |
| ResNet-2Plus1D | float | SA7255P ADP | Qualcomm® SA7255P | TFLITE | 736.652 ms | 0 - 195 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.tflite) |
| ResNet-2Plus1D | float | SA7255P ADP | Qualcomm® SA7255P | QNN_DLC | 81.891 ms | 0 - 181 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.dlc) |
| ResNet-2Plus1D | float | SA8295P ADP | Qualcomm® SA8295P | TFLITE | 475.165 ms | 0 - 188 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.tflite) |
| ResNet-2Plus1D | float | SA8295P ADP | Qualcomm® SA8295P | QNN_DLC | 22.955 ms | 0 - 168 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.dlc) |
| ResNet-2Plus1D | float | SA8775P ADP | Qualcomm® SA8775P | TFLITE | 392.239 ms | 0 - 195 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.tflite) |
| ResNet-2Plus1D | float | SA8775P ADP | Qualcomm® SA8775P | QNN_DLC | 21.602 ms | 0 - 192 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.dlc) |
| ResNet-2Plus1D | float | Samsung Galaxy S24 | Snapdragon® 8 Gen 3 Mobile | TFLITE | 292.093 ms | 0 - 281 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.tflite) |
| ResNet-2Plus1D | float | Samsung Galaxy S24 | Snapdragon® 8 Gen 3 Mobile | QNN_DLC | 9.306 ms | 2 - 269 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.dlc) |
| ResNet-2Plus1D | float | Samsung Galaxy S24 | Snapdragon® 8 Gen 3 Mobile | ONNX | 8.731 ms | 2 - 233 MB | NPU | [ResNet-2Plus1D.onnx.zip](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.onnx.zip) |
| ResNet-2Plus1D | float | Samsung Galaxy S25 | Snapdragon® 8 Elite For Galaxy Mobile | TFLITE | 266.815 ms | 0 - 193 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.tflite) |
| ResNet-2Plus1D | float | Samsung Galaxy S25 | Snapdragon® 8 Elite For Galaxy Mobile | QNN_DLC | 7.356 ms | 2 - 184 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.dlc) |
| ResNet-2Plus1D | float | Samsung Galaxy S25 | Snapdragon® 8 Elite For Galaxy Mobile | ONNX | 7.199 ms | 1 - 144 MB | NPU | [ResNet-2Plus1D.onnx.zip](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.onnx.zip) |
| ResNet-2Plus1D | float | Snapdragon 8 Elite Gen 5 QRD | Snapdragon® 8 Elite Gen 5 Mobile | TFLITE | 259.756 ms | 0 - 203 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.tflite) |
| ResNet-2Plus1D | float | Snapdragon 8 Elite Gen 5 QRD | Snapdragon® 8 Elite Gen 5 Mobile | QNN_DLC | 5.418 ms | 2 - 191 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.dlc) |
| ResNet-2Plus1D | float | Snapdragon 8 Elite Gen 5 QRD | Snapdragon® 8 Elite Gen 5 Mobile | ONNX | 5.51 ms | 2 - 147 MB | NPU | [ResNet-2Plus1D.onnx.zip](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.onnx.zip) |
| ResNet-2Plus1D | float | Snapdragon X Elite CRD | Snapdragon® X Elite | QNN_DLC | 13.285 ms | 2 - 2 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.dlc) |
| ResNet-2Plus1D | float | Snapdragon X Elite CRD | Snapdragon® X Elite | ONNX | 12.322 ms | 60 - 60 MB | NPU | [ResNet-2Plus1D.onnx.zip](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D.onnx.zip) |
| ResNet-2Plus1D | w8a8 | Dragonwing Q-6690 MTP | Qualcomm® QCM6690 | TFLITE | 1621.204 ms | 321 - 478 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.tflite) |
| ResNet-2Plus1D | w8a8 | Dragonwing Q-6690 MTP | Qualcomm® QCM6690 | QNN_DLC | 68.331 ms | 1 - 167 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.dlc) |
| ResNet-2Plus1D | w8a8 | Dragonwing Q-6690 MTP | Qualcomm® QCM6690 | ONNX | 299.164 ms | 99 - 112 MB | CPU | [ResNet-2Plus1D.onnx.zip](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.onnx.zip) |
| ResNet-2Plus1D | w8a8 | Dragonwing RB3 Gen 2 Vision Kit | Qualcomm® QCS6490 | TFLITE | 1797.052 ms | 267 - 428 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.tflite) |
| ResNet-2Plus1D | w8a8 | Dragonwing RB3 Gen 2 Vision Kit | Qualcomm® QCS6490 | QNN_DLC | 17.317 ms | 1 - 3 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.dlc) |
| ResNet-2Plus1D | w8a8 | Dragonwing RB3 Gen 2 Vision Kit | Qualcomm® QCS6490 | ONNX | 317.409 ms | 98 - 129 MB | CPU | [ResNet-2Plus1D.onnx.zip](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.onnx.zip) |
| ResNet-2Plus1D | w8a8 | QCS8275 (Proxy) | Qualcomm® QCS8275 (Proxy) | TFLITE | 1292.279 ms | 0 - 394 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.tflite) |
| ResNet-2Plus1D | w8a8 | QCS8275 (Proxy) | Qualcomm® QCS8275 (Proxy) | QNN_DLC | 13.087 ms | 1 - 164 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.dlc) |
| ResNet-2Plus1D | w8a8 | QCS8450 (Proxy) | Qualcomm® QCS8450 (Proxy) | TFLITE | 919.714 ms | 0 - 371 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.tflite) |
| ResNet-2Plus1D | w8a8 | QCS8450 (Proxy) | Qualcomm® QCS8450 (Proxy) | QNN_DLC | 7.175 ms | 1 - 202 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.dlc) |
| ResNet-2Plus1D | w8a8 | QCS8550 (Proxy) | Qualcomm® QCS8550 (Proxy) | TFLITE | 699.325 ms | 0 - 3 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.tflite) |
| ResNet-2Plus1D | w8a8 | QCS8550 (Proxy) | Qualcomm® QCS8550 (Proxy) | QNN_DLC | 4.426 ms | 1 - 3 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.dlc) |
| ResNet-2Plus1D | w8a8 | QCS8550 (Proxy) | Qualcomm® QCS8550 (Proxy) | ONNX | 4.359 ms | 0 - 35 MB | NPU | [ResNet-2Plus1D.onnx.zip](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.onnx.zip) |
| ResNet-2Plus1D | w8a8 | QCS9075 (Proxy) | Qualcomm® QCS9075 (Proxy) | TFLITE | 672.511 ms | 0 - 339 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.tflite) |
| ResNet-2Plus1D | w8a8 | QCS9075 (Proxy) | Qualcomm® QCS9075 (Proxy) | QNN_DLC | 4.653 ms | 1 - 163 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.dlc) |
| ResNet-2Plus1D | w8a8 | SA7255P ADP | Qualcomm® SA7255P | TFLITE | 1292.279 ms | 0 - 394 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.tflite) |
| ResNet-2Plus1D | w8a8 | SA7255P ADP | Qualcomm® SA7255P | QNN_DLC | 13.087 ms | 1 - 164 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.dlc) |
| ResNet-2Plus1D | w8a8 | SA8295P ADP | Qualcomm® SA8295P | TFLITE | 763.639 ms | 0 - 340 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.tflite) |
| ResNet-2Plus1D | w8a8 | SA8295P ADP | Qualcomm® SA8295P | QNN_DLC | 7.567 ms | 1 - 166 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.dlc) |
| ResNet-2Plus1D | w8a8 | SA8775P ADP | Qualcomm® SA8775P | TFLITE | 672.511 ms | 0 - 339 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.tflite) |
| ResNet-2Plus1D | w8a8 | SA8775P ADP | Qualcomm® SA8775P | QNN_DLC | 4.653 ms | 1 - 163 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.dlc) |
| ResNet-2Plus1D | w8a8 | Samsung Galaxy S24 | Snapdragon® 8 Gen 3 Mobile | TFLITE | 512.136 ms | 0 - 438 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.tflite) |
| ResNet-2Plus1D | w8a8 | Samsung Galaxy S24 | Snapdragon® 8 Gen 3 Mobile | QNN_DLC | 3.222 ms | 1 - 204 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.dlc) |
| ResNet-2Plus1D | w8a8 | Samsung Galaxy S24 | Snapdragon® 8 Gen 3 Mobile | ONNX | 3.205 ms | 0 - 184 MB | NPU | [ResNet-2Plus1D.onnx.zip](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.onnx.zip) |
| ResNet-2Plus1D | w8a8 | Samsung Galaxy S25 | Snapdragon® 8 Elite For Galaxy Mobile | TFLITE | 396.944 ms | 0 - 419 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.tflite) |
| ResNet-2Plus1D | w8a8 | Samsung Galaxy S25 | Snapdragon® 8 Elite For Galaxy Mobile | QNN_DLC | 2.411 ms | 1 - 161 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.dlc) |
| ResNet-2Plus1D | w8a8 | Samsung Galaxy S25 | Snapdragon® 8 Elite For Galaxy Mobile | ONNX | 2.615 ms | 0 - 130 MB | NPU | [ResNet-2Plus1D.onnx.zip](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.onnx.zip) |
| ResNet-2Plus1D | w8a8 | Snapdragon 7 Gen 4 QRD | Snapdragon® 7 Gen 4 Mobile | TFLITE | 1244.845 ms | 334 - 510 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.tflite) |
| ResNet-2Plus1D | w8a8 | Snapdragon 7 Gen 4 QRD | Snapdragon® 7 Gen 4 Mobile | QNN_DLC | 7.607 ms | 1 - 158 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.dlc) |
| ResNet-2Plus1D | w8a8 | Snapdragon 7 Gen 4 QRD | Snapdragon® 7 Gen 4 Mobile | ONNX | 286.964 ms | 95 - 110 MB | CPU | [ResNet-2Plus1D.onnx.zip](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.onnx.zip) |
| ResNet-2Plus1D | w8a8 | Snapdragon 8 Elite Gen 5 QRD | Snapdragon® 8 Elite Gen 5 Mobile | TFLITE | 582.234 ms | 0 - 372 MB | NPU | [ResNet-2Plus1D.tflite](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.tflite) |
| ResNet-2Plus1D | w8a8 | Snapdragon 8 Elite Gen 5 QRD | Snapdragon® 8 Elite Gen 5 Mobile | QNN_DLC | 1.782 ms | 1 - 165 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.dlc) |
| ResNet-2Plus1D | w8a8 | Snapdragon 8 Elite Gen 5 QRD | Snapdragon® 8 Elite Gen 5 Mobile | ONNX | 1.906 ms | 0 - 131 MB | NPU | [ResNet-2Plus1D.onnx.zip](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.onnx.zip) |
| ResNet-2Plus1D | w8a8 | Snapdragon X Elite CRD | Snapdragon® X Elite | QNN_DLC | 4.749 ms | 1 - 1 MB | NPU | [ResNet-2Plus1D.dlc](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.dlc) |
| ResNet-2Plus1D | w8a8 | Snapdragon X Elite CRD | Snapdragon® X Elite | ONNX | 4.487 ms | 31 - 31 MB | NPU | [ResNet-2Plus1D.onnx.zip](https://huggingface.co/qualcomm/ResNet-2Plus1D/blob/main/ResNet-2Plus1D_w8a8.onnx.zip) |
## Installation
Install the package via pip:
```bash
# NOTE: 3.10 <= PYTHON_VERSION < 3.14 is supported.
pip install "qai-hub-models[resnet-2plus1d]"
```
## Configure Qualcomm® AI Hub Workbench to run this model on a cloud-hosted device
Sign-in to [Qualcomm® AI Hub Workbench](https://workbench.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://workbench.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.resnet_2plus1d.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.resnet_2plus1d.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.resnet_2plus1d.export
```
## How does this work?
This [export script](https://aihub.qualcomm.com/models/resnet_2plus1d/qai_hub_models/models/ResNet-2Plus1D/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.resnet_2plus1d import Model
# Load the model
torch_model = Model.from_pretrained()
# Device
device = hub.Device("Samsung Galaxy S25")
# 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 Workbench. [Sign up for access](https://myaccount.qualcomm.com/signup).
## 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 ResNet-2Plus1D's performance across various devices [here](https://aihub.qualcomm.com/models/resnet_2plus1d).
Explore all available models on [Qualcomm® AI Hub](https://aihub.qualcomm.com/)
## License
* The license for the original implementation of ResNet-2Plus1D can be found
[here](https://github.com/pytorch/vision/blob/main/LICENSE).
## References
* [A Closer Look at Spatiotemporal Convolutions for Action Recognition](https://arxiv.org/abs/1711.11248)
* [Source Model Implementation](https://github.com/pytorch/vision/blob/main/torchvision/models/video/resnet.py)
## 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:ai-hub-support@qti.qualcomm.com).