This is code of our solution for Chalearn Single-modal face anti spofing attack detection challenge at CVPR 2020.

Please if you use this code in your experiments, site the following paper: https://arxiv.org/abs/2006.16028

Our solution based on two types of artificial transforms: rank pooling[1] and optical flow[2], combined in end-to-end pipeline for spoof detection with sequence augmentation to enrich the collection of fake tracks.

[1] Basura Fernando, Efstratios Gavves, Jose Oramas, AmirGhodrati, and Tinne Tuytelaars.Rank pooling for actionrecognition.TPAMI, 39(4):773–787, 201

[2] C. Liu. Beyond pixels: Exploring new representations and applications for motion analysis. Doctoral Thesis. MIT, 2009.

Install at_learner_core

cd /path/to/new/pip/environment
python -m venv casia_cefa
source casia_cefa/bin/activate
pip install -e /path/to/at_learner_core/repository/

Put pyflow to at_learner_core/utils, replace OpticalFlow.cpp to remove logs spamming to console and build Original github repository: https://github.com/pathak22/pyflow

cd at_learner_core/at_learner_core/utils
git clone https://github.com/pathak22/pyflow.git
cd pyflow/
cp ../../../../data/OpticalFlow.cpp src/OpticalFlow.cpp #Remove logs spamming to console
pip install cython
python setup.py build_ext -i
python demo.py # 

Please see installation instructions there.

Train, dev lists creating. Replace root path to images in train_list.txt, dev_list.txt, dev_test_list.txt

cd data
python prepare_lists.py --data_path /path/to/casia/surf/cefa/directory
cd ..

cd ../rgb_track
python configs_final_exp.py
CUDA_VISIBLE_DEVICES=0 python main.py --config experiments/rgb_track/exp1_protocol_4_1/rgb_track_exp1_protocol_4_1.config;
CUDA_VISIBLE_DEVICES=0 python main.py --config experiments/rgb_track/exp1_protocol_4_2/rgb_track_exp1_protocol_4_2.config;
CUDA_VISIBLE_DEVICES=0 python main.py --config experiments/rgb_track/exp1_protocol_4_3/rgb_track_exp1_protocol_4_3.config

After training process run rgb_predictor

python test_config.py
CUDA_VISIBLE_DEVICES=0 python rgb_predictor.py --test_config experiment_tests/protocol_4_1/protocol_4_1.config \
 --model_config_path experiments/rgb_track/exp1_protocol_4_1/rgb_track_exp1_protocol_4_1.config \
 --checkpoint_path experiments/rgb_track/exp1_protocol4_1/checkpoints/model_4.pth
CUDA_VISIBLE_DEVICES=0 python rgb_predictor.py --test_config experiment_tests/protocol_4_2/protocol_4_2.config \
 --model_config_path experiments/rgb_track/exp1_protocol_4_2/rgb_track_exp1_protocol_4_2.config \
 --checkpoint_path experiments/rgb_track/exp1_protocol_4_2/checkpoints/model_4.pth
CUDA_VISIBLE_DEVICES=0 python rgb_predictor.py --test_config experiment_tests/protocol_4_3/protocol_4_3.config \
 --model_config_path experiments/rgb_track/exp1_protocol_4_3/rgb_track_exp1_protocol_4_3.config \
 --checkpoint_path experiments/rgb_track/exp1_protocol_4_3/checkpoints/model_4.pth

Compile submit_file

python compile_submit_file.py