Lei Tan | National University of Singapore

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 object re-identification and AI-generated image detection.

News

[Jul. 2026] Serve as Senior Program Committee for AAAI 2027.
[Jun. 2026] One paper about AI-generated image detection is accepted by ECCV 2026.
[May. 2026] One paper about multi-modal ReID is accepted by ICML 2026.
[Feb. 2026] One paper about White-Balance is accepted by CVPR 2026.
[Nov. 2025] One paper about Text-based ReID is accepted by IJCV.
[Nov. 2025] Four papers (Two Oral) about PAR, Image Translation, and AI-generated image detection are accepted by AAAI 2026.
[Sept. 2025] Two papers (One Spotlight) about any-to-any and aerial-ground ReID are accepted by NeurIPS 2025.
[Jul. 2025] One paper about Text-based ReID is accepted by ACM MM 2025.
[May 2025] I have been selected as ICML’25 Outstanding Reviewer.
[May 2025] Two papers about multi-modal ReID are accepted by ICML 2025.

Publications

ECCV

UC-VLM: Consistency-Driven Learning for AI-Generated Image Detection with Vision-Language Large Models

Lei Tan, Shuwei Li, Mohan Kankanhalli, Robby T. Tan

European Conference on Computer Vision (ECCV), 2026.

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ICML

FUSE: Frequency-domain Unification and Spectral Energy Alignment for Multi-modal Object Re-Identification

Xuanhao Qi, Tom H Luan, Yukang Zhang, Jinkai Zheng, Shuwei Li, Lei Tan

International Conference on Machine Learning (ICML), 2026.

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CVPR

White-Balance First, Adjust Later: Cross-Camera Color Constancy via Vision-Language Evaluation

Shuwei Li, Lei Tan, Robby T. Tan

Computer Vision and Pattern Recognition Conference (CVPR), 2026.

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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), 2026.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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MM

Dynamic Orototype Mask for Occluded Person Re-identification

Lei Tan, Pingyang Dai, Rongrong Ji, Yongjian Wu

ACM international conference on multimedia (MM), 2022.

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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.

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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.

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Preprint

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.

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Arxiv

Prompt Decoupling for Text-to-Image Person Re-identification

Weihao Li, Lei Tan, Pingyang Dai, Yan Zhang

arXiv preprint arXiv:2401.02173, 2024.

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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.

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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.

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Services

Conference Reviewers

ICCV, CVPR, ECCV, Neurips, ICML, ICLR, AISTATS, AAAI, ACMMM, IJCAI, ...

Journal Reviewers

TPAMI, IJCV, TIP, TIFS, TMM, TCSVT, TMLR, PR, ...

Last updated in July 2026.