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MediaPipe-Face-Detection-Quantized

Object Detection
PyTorch
TF Lite
ONNX
real_time
quantized
android
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metadata
library_name: pytorch
license: apache-2.0
pipeline_tag: object-detection
tags:
  - real_time
  - quantized
  - android

MediaPipe-Face-Detection-Quantized: Optimized for Mobile Deployment

Detect faces and locate facial features in real-time video and image streams

Designed for sub-millisecond processing, this model predicts bounding boxes and pose skeletons (left eye, right eye, nose tip, mouth, left eye tragion, and right eye tragion) of faces in an image.

This model is an implementation of MediaPipe-Face-Detection-Quantized found here. This repository provides scripts to run MediaPipe-Face-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:
    • Input resolution: 256x256
    • Number of output classes: 6
    • Number of parameters (MediaPipeFaceDetector): 135K
    • Model size (MediaPipeFaceDetector): 255 KB
    • Number of parameters (MediaPipeFaceLandmarkDetector): 603K
    • Model size (MediaPipeFaceLandmarkDetector): 746 KB
Model Device Chipset Target Runtime Inference Time (ms) Peak Memory Range (MB) Precision Primary Compute Unit Target Model
MediaPipeFaceDetector Samsung Galaxy S23 Snapdragon® 8 Gen 2 TFLITE 0.275 ms 0 - 1 MB FP16 NPU MediaPipe-Face-Detection-Quantized.tflite
MediaPipeFaceDetector Samsung Galaxy S23 Snapdragon® 8 Gen 2 QNN 0.297 ms 0 - 73 MB FP16 NPU MediaPipe-Face-Detection-Quantized.so
MediaPipeFaceDetector Samsung Galaxy S24 Snapdragon® 8 Gen 3 TFLITE 0.182 ms 0 - 32 MB FP16 NPU MediaPipe-Face-Detection-Quantized.tflite
MediaPipeFaceDetector Samsung Galaxy S24 Snapdragon® 8 Gen 3 QNN 0.236 ms 0 - 19 MB FP16 NPU MediaPipe-Face-Detection-Quantized.so
MediaPipeFaceDetector RB3 Gen 2 (Proxy) QCS6490 Proxy TFLITE 0.681 ms 0 - 25 MB FP16 NPU MediaPipe-Face-Detection-Quantized.tflite
MediaPipeFaceDetector RB3 Gen 2 (Proxy) QCS6490 Proxy QNN 0.762 ms 0 - 8 MB FP16 NPU Use Export Script
MediaPipeFaceDetector RB5 (Proxy) QCS8250 Proxy TFLITE 5.031 ms 0 - 5 MB FP16 NPU MediaPipe-Face-Detection-Quantized.tflite
MediaPipeFaceDetector QCS8550 (Proxy) QCS8550 Proxy TFLITE 0.273 ms 0 - 1 MB FP16 NPU MediaPipe-Face-Detection-Quantized.tflite
MediaPipeFaceDetector QCS8550 (Proxy) QCS8550 Proxy QNN 0.301 ms 0 - 1 MB FP16 NPU Use Export Script
MediaPipeFaceDetector SA8255 (Proxy) SA8255P Proxy TFLITE 0.279 ms 0 - 70 MB FP16 NPU MediaPipe-Face-Detection-Quantized.tflite
MediaPipeFaceDetector SA8255 (Proxy) SA8255P Proxy QNN 0.303 ms 0 - 1 MB FP16 NPU Use Export Script
MediaPipeFaceDetector SA8775 (Proxy) SA8775P Proxy TFLITE 0.274 ms 0 - 1 MB FP16 NPU MediaPipe-Face-Detection-Quantized.tflite
MediaPipeFaceDetector SA8775 (Proxy) SA8775P Proxy QNN 0.303 ms 0 - 1 MB FP16 NPU Use Export Script
MediaPipeFaceDetector SA8650 (Proxy) SA8650P Proxy TFLITE 0.272 ms 0 - 2 MB FP16 NPU MediaPipe-Face-Detection-Quantized.tflite
MediaPipeFaceDetector SA8650 (Proxy) SA8650P Proxy QNN 0.301 ms 0 - 1 MB FP16 NPU Use Export Script
MediaPipeFaceDetector QCS8450 (Proxy) QCS8450 Proxy TFLITE 0.324 ms 0 - 33 MB FP16 NPU MediaPipe-Face-Detection-Quantized.tflite
MediaPipeFaceDetector QCS8450 (Proxy) QCS8450 Proxy QNN 0.35 ms 0 - 19 MB FP16 NPU Use Export Script
MediaPipeFaceDetector Snapdragon 8 Elite QRD Snapdragon® 8 Elite TFLITE 0.202 ms 0 - 23 MB FP16 NPU MediaPipe-Face-Detection-Quantized.tflite
MediaPipeFaceDetector Snapdragon 8 Elite QRD Snapdragon® 8 Elite QNN 0.207 ms 0 - 15 MB FP16 NPU Use Export Script
MediaPipeFaceDetector Snapdragon X Elite CRD Snapdragon® X Elite QNN 0.427 ms 1 - 1 MB FP16 NPU Use Export Script
MediaPipeFaceLandmarkDetector Samsung Galaxy S23 Snapdragon® 8 Gen 2 TFLITE 0.18 ms 0 - 68 MB FP16 NPU MediaPipe-Face-Detection-Quantized.tflite
MediaPipeFaceLandmarkDetector Samsung Galaxy S23 Snapdragon® 8 Gen 2 QNN 0.226 ms 0 - 3 MB FP16 NPU MediaPipe-Face-Detection-Quantized.so
MediaPipeFaceLandmarkDetector Samsung Galaxy S24 Snapdragon® 8 Gen 3 TFLITE 0.142 ms 0 - 26 MB FP16 NPU MediaPipe-Face-Detection-Quantized.tflite
MediaPipeFaceLandmarkDetector Samsung Galaxy S24 Snapdragon® 8 Gen 3 QNN 0.166 ms 0 - 12 MB FP16 NPU MediaPipe-Face-Detection-Quantized.so
MediaPipeFaceLandmarkDetector RB3 Gen 2 (Proxy) QCS6490 Proxy TFLITE 0.395 ms 0 - 19 MB FP16 NPU MediaPipe-Face-Detection-Quantized.tflite
MediaPipeFaceLandmarkDetector RB3 Gen 2 (Proxy) QCS6490 Proxy QNN 0.49 ms 0 - 8 MB FP16 NPU Use Export Script
MediaPipeFaceLandmarkDetector RB5 (Proxy) QCS8250 Proxy TFLITE 2.921 ms 0 - 7 MB FP16 NPU MediaPipe-Face-Detection-Quantized.tflite
MediaPipeFaceLandmarkDetector QCS8550 (Proxy) QCS8550 Proxy TFLITE 0.182 ms 0 - 3 MB FP16 NPU MediaPipe-Face-Detection-Quantized.tflite
MediaPipeFaceLandmarkDetector QCS8550 (Proxy) QCS8550 Proxy QNN 0.212 ms 0 - 2 MB FP16 NPU Use Export Script
MediaPipeFaceLandmarkDetector SA8255 (Proxy) SA8255P Proxy TFLITE 0.185 ms 0 - 1 MB FP16 NPU MediaPipe-Face-Detection-Quantized.tflite
MediaPipeFaceLandmarkDetector SA8255 (Proxy) SA8255P Proxy QNN 0.216 ms 0 - 1 MB FP16 NPU Use Export Script
MediaPipeFaceLandmarkDetector SA8775 (Proxy) SA8775P Proxy TFLITE 0.185 ms 0 - 3 MB FP16 NPU MediaPipe-Face-Detection-Quantized.tflite
MediaPipeFaceLandmarkDetector SA8775 (Proxy) SA8775P Proxy QNN 0.214 ms 0 - 1 MB FP16 NPU Use Export Script
MediaPipeFaceLandmarkDetector SA8650 (Proxy) SA8650P Proxy TFLITE 0.182 ms 0 - 2 MB FP16 NPU MediaPipe-Face-Detection-Quantized.tflite
MediaPipeFaceLandmarkDetector SA8650 (Proxy) SA8650P Proxy QNN 0.219 ms 0 - 1 MB FP16 NPU Use Export Script
MediaPipeFaceLandmarkDetector QCS8450 (Proxy) QCS8450 Proxy TFLITE 0.214 ms 0 - 28 MB FP16 NPU MediaPipe-Face-Detection-Quantized.tflite
MediaPipeFaceLandmarkDetector QCS8450 (Proxy) QCS8450 Proxy QNN 0.269 ms 0 - 14 MB FP16 NPU Use Export Script
MediaPipeFaceLandmarkDetector Snapdragon 8 Elite QRD Snapdragon® 8 Elite TFLITE 0.12 ms 0 - 18 MB FP16 NPU MediaPipe-Face-Detection-Quantized.tflite
MediaPipeFaceLandmarkDetector Snapdragon 8 Elite QRD Snapdragon® 8 Elite QNN 0.177 ms 0 - 10 MB FP16 NPU Use Export Script
MediaPipeFaceLandmarkDetector Snapdragon X Elite CRD Snapdragon® X Elite QNN 0.343 ms 1 - 1 MB FP16 NPU Use Export Script

Installation

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

pip install qai-hub-models

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.mediapipe_face_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.mediapipe_face_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.mediapipe_face_quantized.export

Profiling Results
------------------------------------------------------------
MediaPipeFaceDetector
Device                          : Samsung Galaxy S23 (13)
Runtime                         : TFLITE                 
Estimated inference time (ms)   : 0.3                    
Estimated peak memory usage (MB): [0, 1]                 
Total # Ops                     : 121                    
Compute Unit(s)                 : NPU (121 ops)          

------------------------------------------------------------
MediaPipeFaceLandmarkDetector
Device                          : Samsung Galaxy S23 (13)
Runtime                         : TFLITE                 
Estimated inference time (ms)   : 0.2                    
Estimated peak memory usage (MB): [0, 68]                
Total # Ops                     : 117                    
Compute Unit(s)                 : NPU (117 ops)

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 MediaPipe-Face-Detection-Quantized's performance across various devices here. Explore all available models on Qualcomm® AI Hub

License

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

References

Community