Yunlong Wang (王云龙)
Associate Professor, Institute of Automation, Chinese Academy of Sciences (CASIA) at

Yunlong Wang is currently an Associate Professor with New Laboratory of Pattern Recognition (NLPR), State Key Laboratory of Multimodal Artificial Intelligence Systems (MAIS), Institute of Automation, Chinese Academy of Sciences (CASIA) , China. He received the B.E. degree and the Ph.D. degree in Department of Automation, University of Science and Technology of China, majoring in pattern recognition and intelligent systems. His research focuses on pattern recognition, machine learning, light field photography and biometrics. His academic homepage in Chinese is here.


  • Computational Imaging
  • Machine Learning
  • Biometrics Recognition
  • Artificial Intelligence


Institute of Automation, Chinese Academy of Sciences (CASIA)
2022 - present
Associate Professor
Institute of Automation, Chinese Academy of Sciences (CASIA)
2019 - 2022
Assistant Professor
University of Science and Technology of China
2014 - 2019
Ph.D. degree, pattern recognition and intelligent system.
Supervised by Prof. Tieniu Tan, thesis title: Light Field Image Enhancement and Recognition
University of Science and Technology of China
2010 - 2014
B.Sc. degree, automation.
Honors Program



Boosting multi-modal ocular recognition via spatial feature reconstruction and unsupervised image quality estimation, Machine Intelligence Research, 2024.
Yan Zihui , He Lingxiao , Wang Yunlong , Zhang Kunbo , Sun Zhenan*
CASIA-Iris-Africa: A Large-scale African Iris Image Database, Machine Intelligence Research, 2024.
Jawad Muhammad , Wang Yunlong , Hu Junxing , Zhang Kunbo , Sun Zhenan*
Learning Explicit Contact for Implicit Reconstruction of Hand-held Objects from Monocular Images, AAAI 2024, 2023.
Junxing Hu , Hongwen Zhang , Zerui Chen , Mengcheng Li , Yunlong Wang , Yebin Liu , Zhenan Sun
Sensing Micro-Motion Human Patterns using Multimodal mmRadar and Video Signal for Affective and Psychological Intelligence, ACM MM 2023, 2023.
Ru Yiwei , Li Peipei , Sun Muyi , Wang Yunlong , Zhang Kunbo , Li Qi , He Zhaofeng , Sun Zhenan
Sclera-TransFuse: Fusing Swin Transformer and CNN for Accurate Sclera Segmentation, IJCB 2023 Best Student Paper Award, 2023.
Li Haiqing , Wang Caiyong , Zhao Guangzhe , He Zhaofeng , Wang Yunlong , Sun Zhenan
Personalized Graph Generation for Monocular 3D Human Pose and Shape Estimation, IEEE T-CSVT, 2023.
Hu Junxing , Zhang Hongwen , Wang Yunlong , Ren Min , Sun Zhenan
Multiscale Dynamic Graph Representation for Biometric Recognition with Occlusions, IEEE T-PAMI, 2023.
Ren Min , Wang Yunlong , Zhu Yuhao , Zhang Kunbo , Sun Zhenan
Iris-GuideNet: Guided Localisation and Segmentation Network for Unconstrained Iris Biometrics, IEEE TIFS, 2023.
Jawad Muhammad , Wang Caiyong , Wang Yunlong , Zhang Kunbo , Sun Zhenan
AIF-LFNet: All-in-Focus Light Field Super-Resolution Method Considering the Depth-Varying Defocus, IEEE T-CSVT, 2023.
Zhou Shubo , Hu Liang , Wang Yunlong , Sun Zhenan , Zhang Kunbo , Jiang Xue-qin
Contextual Measures for Iris Recognition, IEEE TIFS, 2022.
Wei Jianze , Wang Yunlong* , Huang Huaibo , He Ran , Sun Zhenan , Gao Xingyu*
An Empirical Comparative Analysis of Africans with Asians Using DCNN Facial Biometric Models, CCBR, 2022.
Muhammad Jawad , Wang Yunlong , Wang Leyuan , Zhang Kunbo , Sun Zhenan
Exploring Bias in Sclera Segmentation Models: A Group Evaluation Approach, IEEE TIFS, 2022.
Matej Vitek , --- , Wang Caiyong , Wang Yunlong , He Zhaofeng , Sun Zhenan , ---
PDVN: A Patch-based Dual-view Network for Face Liveness Detection using Light Field Focal Stack, IJCB, 2022.
Wang Yunlong , Li Mupei , Luo Zhengquan , Sun Zhenan
D-ESRGAN: A Dual-Encoder GAN with Residual CNN and Vision Transformer for Iris Image Super-Resolution, IJCB, 2022.
Wang Caiyong , Lu Tianhao , Wu Gaosheng , Wang Yunlong , Sun Zhenan
Combining 2D texture and 3D geometry features for Reliable iris presentation attack detection using light field focal stack, IET Biometrics, 2022.
Zhengquan Luo , Wang Yunlong* , Nianfeng Liu , Zilei Wang
Perturbation Inactivation Based Adversarial Defense for Face Recognition, IEEE TIFS, 2022.
Ren Min , Zhu Yuhao , Wang Yunlong* , Sun Zhenan
Disentangled Federated Learning for Tackling Attributes Skew via Invariant Aggregation and Diversity Transferring, ICML, 2022.
Zhengquan Luo , Yunlong Wang* , Zilei Wang , Zhenan Sun , Tieniu Tan
Towards Interpretable Defense against Adversarial Attacks via Causal Inference, Machine Intelligence Research, 2022.
Ren Min , Wang Yunlong* , He Zhaofeng
FedIris: Towards More Accurate and Privacy-preserving Iris Recognition via Federated Template Communication, CVPRW, 2022.
LuoZhengquan , Wang Yunlong* , Wang Zilei , Sun Zhenan , Tan Tieniu
基于关键点的眼睛定位和状态估计, 计算机应用与软件, 2022.
何勇 , 孙哲南 , 王财勇 , 王云龙 , 朱宇豪
Towards More Discriminative and Robust Iris Recognition by Learning Uncertain Factors, IEEE TIFS, 2022.
Wei Jianze , Huang Huaibo , Wang Yunlong* , He Ran , Sun Zhenan
Multitask deep active contour-based iris segmentation for off-angle iris images, Journal of Electronic Imaging, 2022.
Lu Tianhao , Wang Caiyong , Wang Yunlong , Zhenan Sun
Learning Instance-level Spatial-Temporal Patterns for Person Re-identification, ICCV, 2021.
Ren Min , He Lingxiao , Liao Xingyu , Liu Wu , Wang Yunlong , Tan Tieniu
Cross-spectral Iris Recognition by Learning Device-specific Band, IEEE TCSVT, 2021.
Wei Jianze , Wang Yunlong , Li Yi , He Ran , Sun Zhenan
Iris Normalization Beyond Appr-Circular Parameter Estimation, CCBR, 2021.
Luo Zhengquan , Li Haiqing , Wang Yunlong , Wang Zilei , Sun Zhenan
Flexible Iris Matching Based on Spatial Feature Reconstruction, IEEE TBIOM, 2021.
Yan Zihui , He Lingxiao , Wang Yunlong , Sun, Zhenan , Tan, Tieniu
A Large-scale Database for Less Cooperative Iris Recognition, IJCB, 2021.
Hu Junxing , Wang Leyuan , Luo Zhengquan , Wang Yunlong , Sun Zhenan
An End-to-End Autofocus Camera for Iris on the Move, IJCB, 2021.
Wang Leyuan , Zhang Kunbo , Wang Yunlong , Sun Zhenan
NIR iris challenge evaluation in non-cooperative environments: Segmentation and localization, IJCB, 2021.
Wang Caiyong , Wang Yunlong , Zhang Kunbo , Muhammad Jawad , Lu Tianhao , others
CASIA-Face-Africa: A Large-scale African Face Image Database, IEEE TIFS, 2021.
Muhammad Jawad , Wang Yunlong , Wang Caiyong , Zhang Kunbo , Sun Zhenan
生物特征识别学科发展报告, 中国图象图形学报, 2021.
孙哲南 , 赫然 , 王亮 , 阚美娜 , 冯建江 , 郑方 , 郑伟诗 , 左旺孟 , 康文雄 , 邓伟洪 , 张杰 , 韩琥 , 山世光 , 王云龙 , 茹一伟 , 朱宇豪 , 刘云帆 , 何勇
A Novel Deep-learning Pipeline for Light Field Image Based Material Recognition, ICPR, 2021.
Wang Yunlong , Zhang Kunbo , Sun Zhenan
All-in-Focus Iris Camera With a Great Capture Volume, IJCB, 2020.
Zhang Kunbo , Shen Zhenteng , Wang Yunlong , Sun Zhenan
Recognition Oriented Iris Image Quality Assessment in the Feature Space, IJCB, 2020.
Wang Leyuan , Zhang Kunbo , Ren Min , Wang Yunlong , Sun Zhenan
SSBC 2020: Sclera segmentation benchmarking competition in the mobile environment, IJCB, 2020.
Hu junxing , He Yong , Wang Caiyong , Liu Hongda , Wang Yunlong , Sun Zhenan , others
A lightweight multi-label segmentation network for mobile iris biometrics, ICASSP, 2020.
Wang Caiyong , Wang Yunlong , Xu Boqiang , He Yong , Dong, Zhiwei , Sun, Zhenan
High-fidelity view synthesis for light field imaging with extended pseudo 4DCNN, IEEE TCI, 2020.
Wang Yunlong , Liu Fei , Zhang Kunbo , Wang Zilei , Sun Zhenan , Tan Tieniu
Dynamic graph representation for occlusion handling in biometrics, AAAI, 2020.
Ren Min , Wang Yunlong , Sun Zhenan , Tan Tieniu
Towards complete and accurate iris segmentation using deep multi-task attention network for non-cooperative iris recognition, IEEE TIFS, 2020.
Wang Caiyong , Muhammad Jawad , Wang Yunlong , He Zhaofeng , Sun Zhenan
ScleraSegNet: An attention assisted U-net model for accurate sclera segmentation, IEEE TBIOM, 2019.
Wang Caiyong , Wang Yunlong , Liu Yunfan , He Zhaofeng , He Ran , Sun, Zhenan
Cross-sensor iris recognition using adversarial strategy and sensor-specific information, BTAS, 2019.
Wei Jianze , Wang Yunlong , Wu Xiang , He Zhaofeng , He Ran , Sun Zhenan
Binocular light-field: Imaging theory and occlusion-robust depth perception application, IEEE TIP, 2019.
Liu Fei , Zhou Shubo , Wang Yunlong , Hou Guangqi , Sun, Zhenan , Tan, Tieniu
基于计算光场成像的虹膜活体检测方法, 自动化学报, 2019.
宋平 , 黄玲 , 王云龙 , 刘菲 , 孙哲南
Alignment free and distortion robust iris recognition, ICB, 2019.
Ren Min , Wang Caiyong , Wang Yunlong , Sun Zhenan , Tan Tieniu
End-to-end view synthesis for light field imaging with pseudo 4DCNN, ECCV, 2018.
Wang Yunlong , Liu Fei , Wang Zilei , Hou Guangqi , Sun Zhenan , Tan Tieniu
LFNet: A novel bidirectional recurrent convolutional neural network for light-field image super-resolution, IEEE TIP, 2018.
Wang Yunlong , Liu Fei , Zhang Kunbo , Hou Guangqi , Sun Zhenan , Tan Tieniu
A simple and robust super resolution method for light field images, ICIP, 2016.
Wang Yunlong , Hou Guangqi , Sun Zhenan , Wang Zilei , Tan Tieniu
4D light-field sensing system for people counting, SPIE OPTO, 2016.
Hou Guangqi , Zhang Chi , Wang Yunlong , Sun Zhenan
基于物联网的温室智能监控系统设计, 农业机械学报, 2015.
秦琳琳 , 陆林箭 , 石春 , 吴刚 , 王云龙


Research on Smart Iris Recognition systems
Computational Light Field Imaging Devices and Algorithms