Feng Liu

Assistant Professor
Department of Computer Science
Drexel University
liufeng2915@gmail.com; fl397@drexel.edu

Feng Liu is an Assistant Professor in the Department of Computer Science at Drexel University.

Research Group Visual Intelligence Lab

Research interests My group develops visual intelligence for humans and the physical world, organized into four research directions (see the Research page for details):

Impact areas: AI for Health and Human Performance and AI for Education and Scientific Learning.

News

May 7, 2026 Our paper “BioGait-VLM” has been provisionally accepted at MICCAI 2026 (Acceptance rate: 9%). Congratulations to Anthony, Yuyang, and all co-authors!
Mar 23, 2026 Two papers, DrawSim-PD and SciIBI, have been accepted by AIED 2026! Congratulations to Ariji, Yixuan and all co-authors.
Mar 10, 2026 Received two Drexel internal grants (2x Longsview Fellowship)!
Feb 21, 2026 Two papers, “BioCoach” and “Bridge,” have been accepted by CVPR 2026! Congratulations to Yuyang and all co-authors!
Feb 6, 2026 I am serving as an Associate Editor for IEEE Transactions on Information Forensics and Security (T-IFS).
Jan 10, 2026 We are organizing the First PhysHuman Workshop @ CVPR 2026 (Denver), focusing on physically grounded human perception, modeling, and generation.
Jan 1, 2026 Received an NVIDIA Academic Grant Program Award, supporting our research on geometry-consistent, photorealistic driving-scene generation for autonomous driving.
Oct 6, 2025 Our paper “Person Recognition in Aerial Surveillance: A Decade Survey” is accepted by IEEE T-BIOM.
Oct 5, 2025 I was recognized as one of the ICCV 2025 Outstanding Reviewers.
Sep 2, 2025 I am serving as an Area Chair for CVPR 2026, ICLR 2026.
Jul 25, 2025 Received Google Cloud Research Award.
Jun 30, 2025 Received OpenAI Researcher Access Program Award.
Jun 25, 2025 Our paper “HAMoBE” is accepted by ICCV 2025.
May 20, 2025 I am serving as an Area Chair for BMVC 2025, ACM MM 2025, FG 2025, IJCNN 2025.
Feb 26, 2025 Two papers, “SapiensID” and “AG-VPReID,” have been accepted by CVPR 2025!
Jul 1, 2024 Our paper “Open-Set Biometrics: Beyond Good Closed-Set Models” is accepted by ECCV 2024.
Jun 7, 2024 I’ll be attending CVPR 2024 in person from June 16th to 22nd. Happy to meet up!
Feb 26, 2024 Three papers are accepted by CVPR 2024!
Dec 30, 2023 I’ll be attending WACV 2024 in person from January 4th to 8th, presenting a poster on our FarSight paper. Additionally, I will participate as a speaker at the Efficient Learning for Face Analysis (ELFA) workshop, delivering a talk on ‘AIGC for Biometrics’.
Dec 5, 2023 I will be attending NeurIPS 2023 in person from December 13th to 16th. Feel free to talk; I’ll be happy to engage!
Aug 15, 2023 Our paper “FarSight: A Physics-Driven Whole-Body Biometric System at Large Distance and Altitude” is accepted by WACV 2024.
Jul 14, 2023 Our paper “Learning Clothing and Pose Invariant 3D Shape Representation for Long-Term Person Re-Identification” is accepted by ICCV 2023.
Jul 4, 2023 I am serving as an Area Chair for FG 2024.
Feb 27, 2023 Our paper “DCFace: Synthetic Face Generation with Dual Condition Diffusion Model” is accepted by CVPR 2023.
Feb 2, 2023 Our paper “Learning Implicit Functions for Dense 3D Shape Correspondence of Generic Objects ” is published in IEEE TPAMI.
Sep 14, 2022 Our paper “Cluster and Aggregate: Face Recognition with Large Probe Set” is accepted by NeurIPS 2022.
Jul 8, 2022 Our papers “2D GANs Meet Unsupervised Single-View 3D Reconstruction” and “Controllable and Guided Face Synthesis for Unconstrained Face Recognition” are accepted by ECCV 2022.
Sep 28, 2021 Our paper “Voxel-based 3D Detection and Reconstruction of Multiple Objects from a Single Image” is accepted by NeurIPS 2021.
Sep 1, 2021 Our paper “Shape My Face: Registering 3D Face Scans by Surface-to-Surface Translation” is published in IJCV.
Mar 3, 2021 Our paper “Fully Understanding Generic Objects: Modeling, Segmentation, and Reconstruction” is accepted by CVPR 2021.
Sep 25, 2020 Our paper “Learning Implicit Functions for Topology-Varying Dense 3D Shape Correspondence” is accepted by NeurIPS 2020 as oral presentation (1.1% acceptance rate).

Selected Publications

  1. arXiv
    Non-Colliding Biometric Identities for Digital Entities: Geometry, Capacity, and Million-Scale Virtual Identity Provisioning
    Yuyang Ji, Yixuan Shen, Anil Jain, Xiaoming Liu, and Feng Liu
    arXiv preprint (arXiv) , 2026
    PDF
  2. MICCAI
    BioGait-VLM: A Tri-Modal Vision-Language-Biomechanics Framework for Interpretable Clinical Gait Assessment
    Erdong Chen*, Yuyang Ji*, Greenberg Jacob K., Benjamin Steel, Faraz Arkam, Abigail Lewis, Pranay Singh, and Feng Liu
    International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI) , 2026
    PDF
  3. CVPR
    From 3D Pose to Prose: Biomechanics-Grounded Vision-Language Coaching
    Yuyang Ji, Yixuan Shen, Shengjie Zhu, Yu Kong, and Feng Liu
    IEEE/CVF Computer Vision and Pattern Recognition (CVPR) , 2026
    PDF
  4. CVPR
    Bridge: Basis-Driven Causal Inference Marries VFMs for Domain Generalization
    Mingbo Hong, Feng Liu, Caroline Gevaert, George Vosselman, and Hao Cheng
    IEEE/CVF Computer Vision and Pattern Recognition (CVPR) , 2026
    PDF
  5. AIED
    DrawSim-PD: Simulating Student Science Drawings to Support NGSS-Aligned Teacher Diagnostic Reasoning
    Arijit Chakma, Peng He, Zeyuan Wang, Honglu Liu, Tingting Li, Tiffany D. Do, and Feng Liu
    International Conference on AI in Education (AIED) , 2026
    PDF
  6. AIED
    Can Multimodal LLMs "See" Science Instruction? Benchmarking Pedagogical Reasoning in K-12 Classroom Videos
    Yixuan Shen*, Peng He*, Honglu Liu, Jinxuan Fan, Yuyang Ji, Tingting Li, Tianlong Chen, Kaidi Xu, and Feng Liu
    International Conference on AI in Education (AIED) , 2026
    PDF
  7. ICCV
    HAMoBE: Hierarchical and Adaptive Mixture of Biometric Experts for Video-based Person ReID
    Yiyang Su*, Yunping Shi*, Feng Liu, and Xiaoming Liu
    IEEE/CVF International Conference on Computer Vision (ICCV) , 2025
    PDF
  8. arXiv
    Person Recognition at Altitude and Range: Fusion of Face, Body Shape and Gait
    Feng Liu, Nicholas Chimitt, Lanqing Guo, Jitesh Jain, Aditya Kane, Minchul Kim, Wes Robbins, Yiyang Su, Dingqiang Ye, Xingguang Zhang, Jie Zhu, Siddharth Satyakam, Christopher Perry, Stanley Chan, Arun Ross, Humphrey Shi, Zhangyang Wang, Anil Jain, and Xiaoming Liu
    arXiv preprint (arXiv) , 2025
    PDF
  9. CVPR
    AG-VPReID: A Challenging Large-Scale Benchmark for Aerial-Ground Video-based Person Re-Identification
    Huy Nguyen, Kien Nguyen, Akila Pemasiri, Feng Liu, Sridha Sridharan, and Clinton Fookes
    IEEE/CVF Computer Vision and Pattern Recognition (CVPR) , 2025
    PDF Website
  10. CVPR
    SapiensID: Foundation for Human Recognition
    Minchul Kim, Dingqiang Ye, Yiyang Su, Feng Liu, and Xiaoming Liu
    IEEE/CVF Computer Vision and Pattern Recognition (CVPR) , 2025
    PDF
  11. CVPR
    Securing the Skies: A Comprehensive Survey on Anti-UAV Methods, Benchmarking, and Future Directions
    Yifei Dong, Fengyi Wu, Sanjian Zhang, Guangyu Chen, Yuzhi Hu, Masumi Yano, Jingdong Sun, Siyu Huang, Feng Liu, Qi Dai, and Zhi-Qi Cheng
    IEEE/CVF Computer Vision and Pattern Recognition (CVPR) , 2025
    PDF