qualcomm / PPE-Detection-Quantized

PPE-Detection-Quantized: Optimized for Mobile Deployment

Object detection for personal protective equipments (PPE) with quantized model

Detect if a person is wearing personal protective equipments (PPE) in real-time.

This model is an implementation of PPE-Detection-Quantized found here .

This repository provides scripts to run PPE-Detection-Quantized on Qualcomm® devices. More details on model performance across various devices, can be found here .

Model Details

• Model Type: Object detection
• Model Stats:
  • Inference latency: RealTime
  • Input resolution: 320x192
  • Number of parameters: 7.02M
  • Model size: 6.7 MB
  • Number of output classes: 2

Installation

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

pip install "qai-hub-models[gear_guard_net_quantized]"

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

Sign-in to Qualcomm® AI Hub 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.

qai-hub configure --api_token API_TOKEN

Navigate to 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.

python -m qai_hub_models.models.gear_guard_net_quantized.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.gear_guard_net_quantized.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.

python -m qai_hub_models.models.gear_guard_net_quantized.export

Profiling Results
------------------------------------------------------------
PPE-Detection-Quantized
Device                          : Samsung Galaxy S23 (13)
Runtime                         : TFLITE                 
Estimated inference time (ms)   : 0.2                    
Estimated peak memory usage (MB): [0, 1]                 
Total # Ops                     : 86                     
Compute Unit(s)                 : NPU (86 ops)           

Run demo on a cloud-hosted device

You can also run the demo on-device.

python -m qai_hub_models.models.gear_guard_net_quantized.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.gear_guard_net_quantized.demo -- --on-device

Deploying compiled model to Android

The models can be deployed using multiple runtimes:

• TensorFlow Lite ( .tflite export): This tutorial provides a guide to deploy the .tflite model in an Android application.

• QNN ( .so export ): This sample app provides instructions on how to use the .so shared library in an Android application.

View on Qualcomm® AI Hub

Get more details on PPE-Detection-Quantized's performance across various devices here . Explore all available models on Qualcomm® AI Hub

License

• The license for the original implementation of PPE-Detection-Quantized can be found here .
• The license for the compiled assets for on-device deployment can be found here

References

• None
• Source Model Implementation

Community

• Join our AI Hub Slack community to collaborate, post questions and learn more about on-device AI.
• For questions or feedback please reach out to us .