insightface-paddle

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InsightFace Paddle

1. Introduction

1.1 Overview

InsightFacePaddle is an open source deep face detection and recognition toolkit, powered by PaddlePaddle. InsightFacePaddle provide three related pretrained models now, include BlazeFace for face detection, ArcFace and MobileFace for face recognition.

• This tutorial is mainly about Whl package inference using PaddleInfernence.
• For face recognition task, please refer to: Face recognition tuturial.
• For face detection task, please refer to: Face detection tuturial.

1.2 Benchmark

For face detection task, on WiderFace dataset, the following table shows mAP, speed and time cost for BlazeFace.

Model structure	Model size	WiderFace mAP	CPU time cost	GPU time cost
BlazeFace-FPN-SSH-Paddle	0.65MB	0.9187/0.8979/0.8168	31.7ms	5.6ms
RetinaFace	1.68MB	-/-/0.825	182.0ms	17.4ms

For face recognition task, on MSAM dataset, the following table shows precision, speed and time cost for MobileFaceNet.

Model structure	lfw	cfp_fp	agedb30	CPU time cost	GPU time cost
MobileFaceNet-Paddle	0.9945	0.9343	0.9613	4.3ms	2.3ms
MobileFaceNet-mxnet	0.9950	0.8894	0.9591	7.3ms	4.7ms

Benchmark environment:

• CPU: Intel(R) Xeon(R) Gold 6184 CPU @ 2.40GHz
• GPU: a single NVIDIA Tesla V100

Note: Performance of RetinaFace is tested using script test.py. The image shape is modified to 640x480 here. Performance of MobileFaceNet-mxnet is tested using script verification.py.

1.3 Visualization

One example result predicted by InsightFacePaddle is as follow. Please refer to the Demo for more.

1.4 Community

Scan the QR code below with your QQ (QQ group number: 705899115) to discuss more about deep learning together.

2. Installation

1. Install PaddlePaddle

PaddlePaddle 2.1 or later is required for InsightFacePaddle. You can use the following steps to install PaddlePaddle.

# for GPU
pip3 install paddlepaddle-gpu

# for CPU
pip3 install paddlepaddle

For more details about installation. please refer to PaddlePaddle.

1. Install requirements

InsightFacePaddle dependencies are listed in requirements.txt, you can use the following command to install the dependencies.

pip3 install --upgrade -r requirements.txt -i https://mirror.baidu.com/pypi/simple

1. Install InsightFacePaddle

• [Recommanded] You can use pip to install the lastest version InsightFacePaddle from pypi.

pip3 install --upgrade insightface-paddle

• You can also build whl package and install by following commands.

cd ./InsightFacePaddle
python3 setup.py bdist_wheel
pip3 install dist/*

3. Quick Start

InsightFacePaddle support two ways of use, including Commad Line and Python API.

3.1 Command Line

You can use InsightFacePaddle in Command Line.

3.1.1 Get help

You can get the help about InsightFacePaddle by following command.

insightfacepaddle -h

The args are as follows:

args	type	default	help
det_model	str	BlazeFace	The detection model.
rec_model	str	MobileFace	The recognition model.
use_gpu	bool	True	Whether use GPU to predict. Default by True.
enable_mkldnn	bool	False	Whether use MKLDNN to predict, valid only when --use_gpu is False. Default by False.
cpu_threads	int	1	The num of threads with CPU, valid only when --use_gpu is False and --enable_mkldnn is True. Default by 1.
input	str	-	The path of video to be predicted. Or the path or directory of image file(s) to be predicted.
output	str	-	The directory to save prediction result.
det	bool	False	Whether to detect.
det_thresh	float	0.8	The threshold of detection postprocess. Default by 0.8.
rec	bool	False	Whether to recognize.
index	str	-	The path of index file.
cdd_num	int	5	The number of candidates in the recognition retrieval. Default by 5.
rec_thresh	float	0.45	The threshold of match in recognition, use to remove candidates with low similarity. Default by 0.45.
max_batch_size	int	1	The maxium of batch_size to recognize. Default by 1.
build_index	str	-	The path of index to be build.
img_dir	str	-	The img(s) dir used to build index.
label	str	-	The label file path used to build index.

3.1.2 Build index

If use recognition, before start predicting, you have to build the index.

insightfacepaddle --build_index ./demo/friends/index.bin --img_dir ./demo/friends/gallery --label ./demo/friends/gallery/label.txt

An example used to build index is as follows:

3.1.3 Predict

1. Detection only

• Image(s)

Use the image below to predict:

The prediction command:

insightfacepaddle --det --input ./demo/friends/query/friends1.jpg --output ./output

The result is under the directory ./output:

• Video

insightfacepaddle --det --input ./demo/friends/query/friends.mp4 --output ./output

1. Recognition only

• Image(s)

Use the image below to predict:

The prediction command:

insightfacepaddle --rec --index ./demo/friends/index.bin --input ./demo/friends/query/Rachel.png

The result is output in the terminal:

INFO:root:File: Rachel., predict label(s): ['Rachel']

1. Detection and recognition

• Image(s)

Use the image below to predict:

The prediction command:

insightfacepaddle --det --rec --index ./demo/friends/index.bin --input ./demo/friends/query/friends2.jpg --output ./output

The result is under the directory ./output:

• Video

insightfacepaddle --det --rec --index ./demo/friends/index.bin --input ./demo/friends/query/friends.mp4 --output ./output

3.2 Python

You can use InsightFacePaddle in Python. First, import InsightFacePaddle and logging because InsightFacePaddle using that to control log.

import insightface_paddle as face
import logging
logging.basicConfig(level=logging.INFO)

3.2.1 Get help

parser = face.parser()
help_info = parser.print_help()
print(help_info)

3.2.2 Building index

parser = face.parser()
args = parser.parse_args()
args.build_index = "./demo/friends/index.bin"
args.img_dir = "./demo/friends/gallery"
args.label = "./demo/friends/gallery/label.txt"
predictor = face.InsightFace(args)
predictor.build_index()

3.2.3 Prediction

1. Detection only

• Image(s)

parser = face.parser()
args = parser.parse_args()

args.det = True
args.output = "./output"
input_path = "./demo/friends/query/friends1.jpg"

predictor = face.InsightFace(args)
res = predictor.predict(input_path)
print(next(res))

• NumPy

import cv2

parser = face.parser()
args = parser.parse_args()

args.det = True
args.output = "./output"
path = "./demo/friends/query/friends1.jpg"
img = cv2.imread(path)[:, :, ::-1]

predictor = face.InsightFace(args)
res = predictor.predict(img)
print(next(res))

The prediction result saved as "./output/tmp.png".

• Video

parser = face.parser()
args = parser.parse_args()

args.det = True
args.output = "./output"
input_path = "./demo/friends/query/friends.mp4"

predictor = face.InsightFace(args)
res = predictor.predict(input_path)
for _ in res:
    print(_)

1. Recognition only

• Image(s)

parser = face.parser()
args = parser.parse_args()

args.rec = True
args.index = "./demo/friends/index.bin"
input_path = "./demo/friends/query/Rachel.png"

predictor = face.InsightFace(args)
res = predictor.predict(input_path, print_info=True)
next(res)

• NumPy

import cv2

parser = face.parser()
args = parser.parse_args()

args.rec = True
args.index = "./demo/friends/index.bin"
path = "./demo/friends/query/Rachel.png"
img = cv2.imread(path)[:, :, ::-1]

predictor = face.InsightFace(args)
res = predictor.predict(img, print_info=True)
next(res)

1. Detection and recognition

• Image(s)

parser = face.parser()
args = parser.parse_args()

args.det = True
args.rec = True
args.index = "./demo/friends/index.bin"
args.output = "./output"
input_path = "./demo/friends/query/friends2.jpg"

predictor = face.InsightFace(args)
res = predictor.predict(input_path, print_info=True)
next(res)

• NumPy

import cv2

parser = face.parser()
args = parser.parse_args()

args.det = True
args.rec = True
args.index = "./demo/friends/index.bin"
args.output = "./output"
path = "./demo/friends/query/friends2.jpg"
img = cv2.imread(path)[:, :, ::-1]

predictor = face.InsightFace(args)
res = predictor.predict(img, print_info=True)
next(res)

The prediction result saved as "./output/tmp.png".

• Video

parser = face.parser()
args = parser.parse_args()

args.det = True
args.rec = True
args.index = "./demo/friends/index.bin"
args.output = "./output"
input_path = "./demo/friends/query/friends.mp4"

predictor = face.InsightFace(args)
res = predictor.predict(input_path, print_info=True)
for _ in res:
    pass