unet

tensorrt-unet

This is a TensorRT version Unet, inspired by tensorrtx and pytorch-unet.
You can generate TensorRT engine file using this script and customize some params and network structure based on network you trained (FP32/16 precision, input size, different conv, activation function...)

requirements

TensorRT 7.0 (you need to install tensorrt first)
Cuda 10.2
Python3.7
opencv 4.4
cmake 3.18

train .pth file and convert .wts

create env

pip install -r requirements.txt

train .pth file

train your dataset by following pytorch-unet and generate .pth file.

convert .wts

run gen_wts from utils folder, and move it to project folder

generate engine file and infer

create build folder in project folder

mkdir build

make file, generate exec file

cd build
cmake ..
make

generate TensorRT engine file and infer image

unet -s

then a unet exec file will generated, you can use unet -d to infer files in a folder

unet -d ../samples

efficiency

the speed of tensorRT engine is much faster

pytorch	TensorRT FP32	TensorRT FP16
816x672	816x672	816x672
58ms	43ms (batchsize 8)	14ms (batchsize 8)

Further development

1. add INT8 calibrator
   
2. add custom plugin
   etc