RetinaFace

The pytorch implementation is biubug6/Pytorch_Retinaface, I forked it into wang-xinyu/Pytorch_Retinaface and add genwts.py

This branch is using TensorRT 7 API, branch trt4->retinaface is using TensorRT 4.

Config

• Input shape INPUT_H, INPUT_W defined in decode.h
• INT8/FP16/FP32 can be selected by the macro USE_FP16 or USE_INT8 or USE_FP32 in retina_r50.cpp
• GPU id can be selected by the macro DEVICE in retina_r50.cpp
• Batchsize can be selected by the macro BATCHSIZE in retina_r50.cpp

Run

The following described how to run retina_r50. While retina_mnet is nearly the same, just generate retinaface.wts with mobilenet0.25_Final.pth and run retina_mnet.

1. generate retinaface.wts from pytorch implementation https://github.com/wang-xinyu/Pytorch_Retinaface

git clone https://github.com/wang-xinyu/Pytorch_Retinaface.git
// download its weights 'Resnet50_Final.pth', put it in Pytorch_Retinaface/weights
cd Pytorch_Retinaface
python detect.py --save_model
python genwts.py
// a file 'retinaface.wts' will be generated.

2. put retinaface.wts into tensorrtx/retinaface, build and run

git clone https://github.com/wang-xinyu/tensorrtx.git
cd tensorrtx/retinaface
// put retinaface.wts here
mkdir build
cd build
cmake ..
make
sudo ./retina_r50 -s  // build and serialize model to file i.e. 'retina_r50.engine'
wget https://github.com/Tencent/FaceDetection-DSFD/raw/master/data/worlds-largest-selfie.jpg
sudo ./retina_r50 -d  // deserialize model file and run inference.

3. check the images generated, as follows. 0_result.jpg

4. we also provide a python wrapper

// install python-tensorrt, pycuda, etc.
// ensure the retina_r50.engine and libdecodeplugin.so have been built
python retinaface_trt.py

INT8 Quantization

1. Prepare calibration images, you can randomly select 1000s images from your train set. For widerface, you can also download my calibration images widerface_calib from GoogleDrive or BaiduPan pwd: a9wh

2. unzip it in retinaface/build

3. set the macro USE_INT8 in retina_r50.cpp and make

4. serialize the model and test

More Information

Check the readme in home page.