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MobileNet-v3-Large-Quantized

Image Classification
PyTorch
TF Lite
quantized
backbone
real_time
android
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metadata
datasets:
  - imagenet-1k
  - imagenet-22k
library_name: pytorch
license: bsd-3-clause
pipeline_tag: image-classification
tags:
  - quantized
  - backbone
  - real_time
  - android

MobileNet-v3-Large-Quantized: Optimized for Mobile Deployment

Imagenet classifier and general purpose backbone

MobileNet-v3-Large is a machine learning model that can classify images from the Imagenet dataset. It can also be used as a backbone in building more complex models for specific use cases.

This model is an implementation of MobileNet-v3-Large-Quantized found here. This repository provides scripts to run MobileNet-v3-Large-Quantized on Qualcomm® devices. More details on model performance across various devices, can be found here.

Model Details

  • Model Type: Image classification
  • Model Stats:
    • Model checkpoint: Imagenet
    • Input resolution: 224x224
    • Number of parameters: 5.47M
    • Model size: 5.79 MB
Device Chipset Target Runtime Inference Time (ms) Peak Memory Range (MB) Precision Primary Compute Unit Target Model
Samsung Galaxy S23 Ultra (Android 13) Snapdragon® 8 Gen 2 TFLite 0.359 ms 0 - 1 MB INT8 NPU MobileNet-v3-Large-Quantized.tflite
Samsung Galaxy S23 Ultra (Android 13) Snapdragon® 8 Gen 2 QNN Model Library 0.622 ms 0 - 61 MB INT8 NPU MobileNet-v3-Large-Quantized.so

Installation

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

pip install "qai-hub-models[mobilenet_v3_large_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.mobilenet_v3_large_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.mobilenet_v3_large_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.mobilenet_v3_large_quantized.export

Profile Job summary of MobileNet-v3-Large-Quantized
--------------------------------------------------
Device: SA8255 (Proxy) (13)
Estimated Inference Time: 0.62 ms
Estimated Peak Memory Range: 0.02-11.40 MB
Compute Units: NPU (126) | Total (126)

Run demo on a cloud-hosted device

You can also run the demo on-device.

python -m qai_hub_models.models.mobilenet_v3_large_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.mobilenet_v3_large_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 MobileNet-v3-Large-Quantized's performance across various devices here. Explore all available models on Qualcomm® AI Hub

License

  • The license for the original implementation of MobileNet-v3-Large-Quantized can be found here.
  • The license for the compiled assets for on-device deployment can be found here

References

Community