avatar

Lei Tan

Research Fellow
National University of Singapore
stone96123@outlook.com


About Me

I’m currently a research fellow at the National University of Singapore, where I collaborate with Prof. Robby T. Tan and Prof. Mohan Kankanhalli. I obtained my Ph.D. degree from Xiamen University in 2024, with my research supervised by Prof. Rongrong Ji. My research interests lie in the fields of person re-identification and AI-generated image detection.

News

Publications

  1. IJCV
    Knowing Where to Focus: Attention-Guided Alignment for Text-based Person Search
    Lei Tan, Weihao Li, Pingyang Dai, Jie Chen, Liujuan Cao, Rongrong Ji
    International Journal of Computer Vision (IJCV).
    PDF Code

  2. AAAI
    Aggregating Diverse Cue Experts for AI-Generated Image Detection
    Lei Tan, Shuwei Li, Mohan Kankanhalli, Robby T. Tan
    AAAI Conference on Artificial Intelligence (AAAI), 2026.
    PDF Code

  3. AAAI
    Bridging Day and Night: Target-Class Hallucination Suppression in Unpaired Image Translation
    Shuwei Li, Lei Tan, Robby T. Tan
    AAAI Conference on Artificial Intelligence (AAAI), Oral, 2026.
    PDF Code

  4. AAAI
    Joint Implicit and Explicit Language Learning for Pedestrian Attribute Recognition
    Yukang Zhang, Lei Tan, Yang Lu, Yan Yan, Hanzi Wang
    AAAI Conference on Artificial Intelligence (AAAI), Oral, 2026.
    PDF Code

  5. AAAI
    FIND: A Simple yet Effective Baseline for Diffusion-Generated Image Detection
    Jie Li, Yingying Feng, Chi Xie, Jie Hu, Lei Tan (corresponding author), Jiayi Ji
    AAAI Conference on Artificial Intelligence (AAAI), 2026.
    PDF Code

  6. Neurips
    MDReID: Modality-Decoupled Learning for Any-to-Any Multi-Modal Object Re-Identification
    Yingying Feng, Jie Li, Jie Hu, Yukang Zhang, Lei Tan (corresponding author), Jiayi Ji
    Neural Information Processing Systems (Neurips), Spotlight, 2025.
    PDF Code

  7. Neurips
    GSAlign: Geometric and Semantic Alignment Network for Aerial-Ground Person Re-Identification
    Qiao Li, Jie Li, Yukang Zhang, Lei Tan (corresponding author), Jing Chen, Jiayi Ji
    Neural Information Processing Systems (Neurips), 2025.
    PDF Code

  8. MM
    GPT-ReID: Learning Fine-grained Representation with GPT for Text-based Person Retrieval
    Xudong Wang, Lei Tan, Pingyang Dai, Liujuan Cao, Rongrong Ji
    ACM international conference on multimedia (MM), 2025.
    PDF Code

  9. ICML
    Multi-Modal Object Re-identification via Sparse Mixture-of-Experts
    Yingying Feng, Jie Li, Chi Xie, Lei Tan (corresponding author), Jiayi Ji
    International Conference on Machine Learning (ICML), 2025.
    PDF Code

  10. ICML
    FlexiReID: Adaptive Mixture of Expert for Multi-Modal Person Re-Identification
    Zhen Sun, Lei Tan (co-first author), Yunhang Shen, Chengmao Cai, Xing Sun, Pingyang Dai, Liujuan Cao, Rongrong Ji
    International Conference on Machine Learning (ICML), 2025.
    PDF Code

  11. CVPR
    WeakMCN: Multi-task Collaborative Network for Weakly Supervised Referring Expression Comprehension and Segmentation
    Silin Cheng, Yang Liu, Xinwei He, Sebastien Ourselin, Lei Tan (corresponding author), Gen Luo
    Computer Vision and Pattern Recognition Conference (CVPR), 2025.
    PDF Code

  12. Neurips
    RLE: A Unified Perspective of Data Augmentation for Cross-Spectral Re-identification
    Lei Tan, Yukang Zhang, Keke Han, Pingyang Dai, Yan Zhang, Yongjian Wu, Rongrong Ji
    Neural Information Processing Systems (Neurips), 2024.
    PDF Code

  13. AAAI
    Occluded Person Re-identification via Saliency-Guided Patch Transfer
    Lei Tan, Jiaer Xia, Wenfeng Liu, Pingyang Dai, Yongjian Wu, Liujuan Cao
    AAAI Conference on Artificial Intelligence (AAAI), 2024.
    PDF Code

  14. AAAI
    Attention Disturbance and Dual-path Constraint Network for Occluded Person Re-identification
    Jiaer Xia, Lei Tan (co-first author), Pingyang Dai, Mingbo Zhao, Yongjian Wu, Liujuan Cao
    AAAI Conference on Artificial Intelligence (AAAI), 2024.
    PDF Code

  15. MM
    Learning Occlusion Disentanglement with Fine-grained Localization for Occluded Person Re-identification
    Wenfeng Liu, Xudong Wang, Lei Tan, Yan Zhang, Pingyang Dai, Yongjian We, Rongrong Ji
    ACM international conference on multimedia (MM), 2023.
    PDF Code

  16. MM
    Dynamic Orototype Mask for Occluded Person Re-identification
    Lei Tan, Pingyang Dai, Rongrong Ji, Yongjian Wu
    ACM international conference on multimedia (MM), 2022.
    PDF Code

  17. PR
    Orthogonal channel attention-based multi-task learning for multi-view facial expression recognition
    Jingying Chen, Lei Yang, Lei Tan, Ruyi Xu
    Pattern Recognition (PR), 2022.
    PDF Code

  18. ECCV
    PlugNet: Degradation Aware Scene Text Recognition Supervised by a Pluggable Super-Resolution Unit
    Yongqiang Mou, Lei Tan (co-first author), Hui Yang, Jingying Chen, Leyuan Liu, Rui Yan, Yaohong Huang
    European Conference on Computer Vision (ECCV), 2020.
    PDF Code

Preprint

  1. Arxiv
    PartFormer: Awakening Latent Diverse Representation from Vision Transformer for Object Re-identification
    Lei Tan, Pingyang Dai, Jie Chen, Liujuan Cao, Yongjian Wu, Rongrong Ji
    arXiv preprint arXiv:2408.16684, 2024.
    PDF Code

  2. Arxiv
    Prompt Decoupling for Text-to-Image Person Re-identification
    Weihao Li, Lei Tan, Pingyang Dai, Yan Zhang
    arXiv preprint arXiv:2401.02173, 2024.
    PDF Code

  3. Arxiv
    Spectral Aware Softmax for Visible-Infrared Person Re-identification
    Lei Tan, Pingyang Dai, Qixiang Ye, Mingliang Xu, Yongjian Wu, Rongrong Ji
    arXiv preprint arXiv:2302.01512, 2023.
    PDF Code

  4. Arxiv
    Exploring Invariant Representation for Visible-Infrared Person Re-identification
    Lei Tan, Yukang Zhang, Shengmei Shen, Yan Wang, Pingyang Dai, Xianming Lin, Yongjian Wu, Rongrong Ji
    arXiv preprint arXiv:2302.00884, 2023.
    PDF Code

Services

Conference Reviewers

Journal Reviewers


Last updated in November 2025.