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InsightFace: 2D and 3D Face Analysis Project

By Jia Guo and Jiankang Deng


The code of InsightFace is released under the MIT License. There is no limitation for both acadmic and commercial usage.

The training data containing the annotation (and the models trained with these data) are available for non-commercial research purposes only.


InsightFace is an open source 2D&3D deep face analysis toolbox, mainly based on MXNet.

The master branch works with MXNet 1.2 to 1.6, with Python 3.x.

ArcFace Video Demo

ArcFace Demo

Please click the image to watch the Youtube video. For Bilibili users, click here.

Recent Update

2020-10-13: A new training method and one large training set(360K IDs) were released here by DeepGlint.

2020-10-09: We opened a large scale recognition test benchmark IFRT

2020-08-01: We released lightweight facial landmark models with fast coordinate regression(106 points). See detail here.

2020-04-27: InsightFace pretrained models and MS1M-Arcface are now specified as the only external training dataset, for iQIYI iCartoonFace challenge, see detail here.

2020.02.21: Instant discussion group created on QQ with group-id: 711302608. For English developers, see install tutorial here.

2020.02.16: RetinaFace now can detect faces with mask, for anti-CoVID19, see detail here

2019.08.10: We achieved 2nd place at WIDER Face Detection Challenge 2019.

2019.05.30: Presentation at cvmart

2019.04.30: Our Face detector (RetinaFace) obtains state-of-the-art results on the WiderFace dataset.

2019.04.14: We will launch a Light-weight Face Recognition challenge/workshop on ICCV 2019.

2019.04.04: Arcface achieved state-of-the-art performance (7/109) on the NIST Face Recognition Vendor Test (FRVT) (1:1 verification) report (name: Imperial-000 and Imperial-001). Our solution is based on [MS1MV2+DeepGlintAsian, ResNet100, ArcFace loss].

2019.02.08: Please check for our parallel training code which can easily and efficiently support one million identities on a single machine (8* 1080ti).

2018.12.13: Inference acceleration TVM-Benchmark.

2018.10.28: Light-weight attribute model Gender-Age. About 1MB, 10ms on single CPU core. Gender accuracy 96% on validation set and 4.1 age MAE.

2018.10.16: We achieved state-of-the-art performance on Trillionpairs (name: nttstar) and IQIYI_VID (name: WitcheR).


Deep Face Recognition

Face Detection

Face Alignment



Deep Face Recognition


In this module, we provide training data, network settings and loss designs for deep face recognition. The training data includes, but not limited to the cleaned MS1M, VGG2 and CASIA-Webface datasets, which were already packed in MXNet binary format. The network backbones include ResNet, MobilefaceNet, MobileNet, InceptionResNet_v2, DenseNet, etc.. The loss functions include Softmax, SphereFace, CosineFace, ArcFace, Sub-Center ArcFace and Triplet (Euclidean/Angular) Loss.

You can check the detail page of our work ArcFace(which accepted in CVPR-2019) and SubCenter-ArcFace(which accepted in ECCV-2020).

margin penalty for target logit

Our method, ArcFace, was initially described in an arXiv technical report. By using this module, you can simply achieve LFW 99.83%+ and Megaface 98%+ by a single model. This module can help researcher/engineer to develop deep face recognition algorithms quickly by only two steps: download the binary dataset and run the training script.

Training Data

All face images are aligned by ficial five landmarks and cropped to 112x112:

Please check Dataset-Zoo for detail information and dataset downloading.

  • Please check src/data/ on how to build a binary face dataset. You can either choose MTCNN or RetinaFace to align the faces.


  1. Install MXNet with GPU support (Python 3.X).
pip install mxnet-cu101 # which should match your installed cuda version
  1. Clone the InsightFace repository. We call the directory insightface as INSIGHTFACE_ROOT.
git clone --recursive
  1. Download the training set (MS1M-Arcface) and place it in $INSIGHTFACE_ROOT/recognition/datasets/. Each training dataset includes at least following 6 files:

The first three files are the training dataset while the last three files are verification sets.

  1. Train deep face recognition models. In this part, we assume you are in the directory $INSIGHTFACE_ROOT/recognition/ArcFace/.

Place and edit config file:

vim # edit dataset path etc..

We give some examples below. Our experiments were conducted on the Tesla P40 GPU.

(1). Train ArcFace with LResNet100E-IR.

CUDA_VISIBLE_DEVICES='0,1,2,3' python -u --network r100 --loss arcface --dataset emore

It will output verification results of LFW, CFP-FP and AgeDB-30 every 2000 batches. You can check all options in This model can achieve LFW 99.83+ and MegaFace 98.3%+.

(2). Train CosineFace with LResNet50E-IR.

CUDA_VISIBLE_DEVICES='0,1,2,3' python -u --network r50 --loss cosface --dataset emore

(3). Train Softmax with LMobileNet-GAP.

CUDA_VISIBLE_DEVICES='0,1,2,3' python -u --network m1 --loss softmax --dataset emore

(4). Fine-turn the above Softmax model with Triplet loss.

CUDA_VISIBLE_DEVICES='0,1,2,3' python -u --network m1 --loss triplet --lr 0.005 --pretrained ./models/m1-softmax-emore,1

(5). Training in model parallel acceleration.

CUDA_VISIBLE_DEVICES='0,1,2,3' python -u --network r100 --loss arcface --dataset emore
  1. Verification results.

LResNet100E-IR network trained on MS1M-Arcface dataset with ArcFace loss:

Method LFW(%) CFP-FP(%) AgeDB-30(%)
Ours 99.80+ 98.0+ 98.20+

Pretrained Models

You can use $INSIGHTFACE/src/eval/ to test all the pre-trained models.

Please check Model-Zoo for more pretrained models.

Verification Results on Combined Margin

A combined margin method was proposed as a function of target logits value and original θ:

COM(θ) = cos(m_1*θ+m_2) - m_3

For training with m1=1.0, m2=0.3, m3=0.2, run following command:

CUDA_VISIBLE_DEVICES='0,1,2,3' python -u --network r100 --loss combined --dataset emore

Results by using MS1M-IBUG(MS1M-V1)

Method m1 m2 m3 LFW CFP-FP AgeDB-30
W&F Norm Softmax 1 0 0 99.28 88.50 95.13
SphereFace 1.5 0 0 99.76 94.17 97.30
CosineFace 1 0 0.35 99.80 94.4 97.91
ArcFace 1 0.5 0 99.83 94.04 98.08
Combined Margin 1.2 0.4 0 99.80 94.08 98.05
Combined Margin 1.1 0 0.35 99.81 94.50 98.08
Combined Margin 1 0.3 0.2 99.83 94.51 98.13
Combined Margin 0.9 0.4 0.15 99.83 94.20 98.16

Test on MegaFace

Please check $INSIGHTFACE_ROOT/Evaluation/megaface/ to evaluate the model accuracy on Megaface. All aligned images were already provided.

512-D Feature Embedding

In this part, we assume you are in the directory $INSIGHTFACE_ROOT/deploy/. The input face image should be generally centre cropped. We use RNet+ONet of MTCNN to further align the image before sending it to the feature embedding network.

  1. Prepare a pre-trained model.
  2. Put the model under $INSIGHTFACE_ROOT/models/. For example, $INSIGHTFACE_ROOT/models/model-r100-ii.
  3. Run the test script $INSIGHTFACE_ROOT/deploy/

For single cropped face image(112x112), total inference time is only 17ms on our testing server(Intel E5-2660 @ 2.00GHz, Tesla M40, LResNet34E-IR).

Third-party Re-implementation

Face Detection


RetinaFace is a practical single-stage SOTA face detector which is initially introduced in arXiv technical report and then accepted by CVPR 2020. We provide training code, training dataset, pretrained models and evaluation scripts.


Please check RetinaFace for detail.


RetinaFaceAntiCov is an experimental module to identify face boxes with masks. Please check RetinaFaceAntiCov for detail.


Face Alignment


Please check the Menpo Benchmark and our Dense U-Net for detail. We also provide other network settings such as classic hourglass. You can find all of training code, training dataset and evaluation scripts there.


On the other hand, in contrast to heatmap based approaches, we provide some lightweight facial landmark models with fast coordinate regression. The input of these models is loose cropped face image while the output is the direct landmark coordinates. See detail at alignment-coordinateReg. Now only pretrained models available.



If you find InsightFace useful in your research, please consider to cite the following related papers:

title={RetinaFace: Single-stage Dense Face Localisation in the Wild},
author={Deng, Jiankang and Guo, Jia and Yuxiang, Zhou and Jinke Yu and Irene Kotsia and Zafeiriou, Stefanos},

  title={Stacked Dense U-Nets with Dual Transformers for Robust Face Alignment},
  author={Guo, Jia and Deng, Jiankang and Xue, Niannan and Zafeiriou, Stefanos},

  title={The Menpo benchmark for multi-pose 2D and 3D facial landmark localisation and tracking},
  author={Deng, Jiankang and Roussos, Anastasios and Chrysos, Grigorios and Ververas, Evangelos and Kotsia, Irene and Shen, Jie and Zafeiriou, Stefanos},

title={ArcFace: Additive Angular Margin Loss for Deep Face Recognition},
author={Deng, Jiankang and Guo, Jia and Niannan, Xue and Zafeiriou, Stefanos},


[Jia Guo](guojia[at]
[Jiankang Deng](jiankangdeng[at]
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