Lei's Homepage

News

[2020.10] My homepage is launched.

About Me

I am an Associate Professor in the School of Computer Science and Engineering at Southeast University. I was a Zhishan Postdoctoral Researcher working with Prof. Xin Geng at Southeast University. I got my Ph. D. degree from Nanjing University in 2020, supervised by Prof. Yang Gao. In 2011 and 2015, I obtained my bachelor degree and master degree (supervised by Prof. Mingwu Ren) from Nanjing Normal University and Nanjing University of Science and Technology. From August 2018 to August 2019, I was a visiting student at University of Wollongong, supervised by Prof. Lei Wang.

Research Interests

My research interests include Computer Vision (CV) and Pattern Recogintion (PR).

Currently, I mainly focus on the CV topics including Person Re-identification, Anomaly Detection and Semantic Segmentation, etc.
For PR, I am interested in Domain Generalization (DG) and Vision-Language Model (VLM).

Selected Publications

*: Equal Contribution; : Corresponding Author.

Longhua Li, Lei Qi, Xin Geng. Stratified Knowledge-Density Super-Network for Scalable Vision Transformers. AAAI Conference on Artificial Intelligence (AAAI), 2026.
Longhua Li, Lei Qi, Xin Geng. One-Shot Knowledge Transfer for Scalable Person Re-Identification. IEEE International Conference on Computer Vision (ICCV), 2025.
Xingyu Zhao, Lei Qi, Yuexuan An, Xin Geng. Delving into Generalizable Label Distribution Learning. IEEE Transactions on Pattern Analysis and Machine Intelligence (IEEE TPAMI), 2025.
Huazhong Zhao, Lei Qi, Xin Geng. CILP-FGDI: Exploiting Vision-Language Model for Generalizable Person Re-Identification. IEEE Transactions on Information Forensics and Security (IEEE TIFS), 2025.
Xiusheng Xu, Lei Qi, Jingyang Zhou, Xin Geng. BatStyler: Advancing Multi-category Style Generation for Source-free Domain Generalization. IEEE Transactions on Circuits and Systems for Video Technology (IEEE TCSVT), 2025.
Chenghao Li, Lei Qi, Xin Geng. A SAM-guided Two-stream Lightweight Model for Anomaly Detection. ACM Transactions on Multimedia Computing Communications and Application (ACM TOMM), 2024.
Huazhong Zhao, Lei Qi, Xin Geng. CLIP-DFGS: A Hard Sample Mining Method for CLIP in Generalizable Person Re-Identification. ACM Transactions on Multimedia Computing Communications and Application (ACM TOMM), 2024.
Jintao Guo, Lei Qi, Yinghuan Shi, Yang Gao. START: A Generalized State Space Model with Saliency-Driven Token-Aware Transformation. Advances in Neural Information Processing Systems (NeurIPS), 2024.
Xingyu Zhao, Yuexuan An, Lei Qi, Xin Geng. Scalable Label Distribution Learning for Multi-Label Classification. IEEE Transactions on Neural Networks and Learning Systems (IEEE TNNLS), 2024.
Lei Qi, Dongjia Zhao, Yinghuan Shi, Xin Geng. Patch-aware Batch Normalization for Improving Cross-domain Robustness. IEEE Transactions on Circuits and Systems for Video Technology (IEEE TCSVT), 2024.
Yunlong Tang, Yuxuan Wan, Lei Qi, Xin Geng. DPStyler: Dynamic PromptStyler for Source-Free Domain Generalization. IEEE Transactions on Multimedia (IEEE TMM), 2024.
Dongjia Zhao, Lei Qi, Xiao Shi, Yinghuan Shi, Xin Geng. A Novel Cross-Perturbation for Single Domain Generalization. IEEE Transactions on Circuits and Systems for Video Technology (IEEE TCSVT), 2024.
Jiajun Hu, Jian Zhang, Lei Qi, Yinghuan Shi, Yang Gao. Learn to Preserve and Diversify: Parameter-Efficient Group with Orthogonal Regularization for Domain Generalization. European Conference on Computer Vision (ECCV), 2024.
Lei Qi, Ziang Liu, Yinghuan Shi, Xin Geng. Generalizable Metric Network for Cross-domain Person Re-identification. IEEE Transactions on Circuits and Systems for Video Technology (IEEE TCSVT), 2024.
Lei Qi, Hongpeng Yang, Yinghuan Shi, Xin Geng. MultiMatch: Multi-task Learning for Semi-supervised Domain Generalization. ACM Transactions on Multimedia Computing Communications and Application (ACM TOMM), 2024.
Lei Qi, Hongpeng Yang, Yinghuan Shi, Xin Geng. NormAUG: Normalization-guided Augmentation for Domain Generalization. IEEE Transactions on Image Processing (IEEE TIP), 2024.
Na Wang^*, Lei Qi^*, Jintao Guo, Yinghuan Shi, Yang Gao. Learning Generalizable Models via Disentangling Spurious and Enhancing Potential Correlations. IEEE Transactions on Image Processing (IEEE TIP), 2023.
Lei Qi, Zihao Ren, Junxi Liu, Xin Geng. Person Re-identification Method Based on Hybrid Real-Synthetic Data. Journal of Computer Research and Development (计算机研究与发展), 2023.
Lei Qi, Peng Dong, Tan Xiong, Hui Xue, Xin Geng. DoubleAUG: Single-domain Generalized Object Detector in Urban via Color Perturbation and Dual-style Memory. ACM Transactions on Multimedia Computing Communications and Application (ACM TOMM), 2023.
Xingyu Zhao, Lei Qi, Yuexuan An, Xin Geng. Generalizable Label Distribution Learning. ACM International Conference on Multimedia (MM), 2023.
Jian Zhang, Lei Qi, Yinghuan Shi, Yang Gao. DomainAdaptor: A Novel Approach to Test-time Adaptation. IEEE International Conference on Computer Vision (ICCV), 2023.
Jintao Guo, Lei Qi, Yinghuan Shi. DomainDrop: Suppressing Domain-Sensitive Channels for Domain Generalization. IEEE International Conference on Computer Vision (ICCV), 2023.
Jiajun Hu^*, Lei Qi^*, Jian Zhang, Yinghuan Shi. Domain generalization via Inter-domain Alignment and Intra-domain Expansion. Pattern Recognition (PR), 2023.
Jintao Guo, Lei Qi, Yinghuan Shi, Yang Gao. PLACE dropout: A Progressive Layer-wise and Channel-wise Dropout for Domain Generalization. ACM Transactions on Multimedia Computing Communications and Application (ACM TOMM), 2023.
Lei Qi, Jiaqi Liu, Lei Wang, Yinghuan Shi, Xin Geng. Unsupervised Generalizable Multi-source Person Re-identification: A Domain-specific Adaptive Framework. Pattern Recognition (PR), 2023.
Jintao Guo, Na Wang, Lei Qi, Yinghuan Shi. ALOFT: A Lightweight MLP-like Architecture with Dynamic Low-Frequency Transform for Domain Generalization. IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2023.
Lihe Yang, Lei Qi, Litong Feng, Wayne Zhang, Yinghuan Shi. Revisiting Weak-to-Strong Consistency in Semi-Supervised Semantic Segmentation. IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2023.
Lei Qi, Jiaying Shen, Jiaqi Liu, Yinghuan Shi, Xin Geng. Label Distribution Learning for Generalizable Multi-source Person Re-identification. IEEE Transactions on Information Forensics and Security (IEEE TIFS), 2022.
Ruiqi Wang^*, Lei Qi^*, Yinghuan Shi, Yang Gao. Better Pseudo-label: Joint Domain-aware Label and Dual-classifier for Semi-supervised Domain Generalization. Pattern Recognition (PR), 2022.
Lei Qi, Lei Wang, Yinghuan Shi, Xin Geng. A Novel Mix-normalization Method for Generalizable Multi-source Person Re-identification. IEEE Transactions on Multimedia (IEEE TMM), 2022.
Yue Wang^*, Lei Qi^*, Yinghuan Shi, Yang Gao. Feature-based Style Randomization for Domain Generalization. IEEE Transactions on Circuits and Systems for Video Technology (IEEE TCSVT), 2022.
Jian Zhang, Lei Qi, Yinghuan Shi, Yang Gao. MVDG: A Unified Multi-view Framework for Domain Generalization. European Conference on Computer Vision (ECCV), 2022.
Ziqi Zhou, Lei Qi, Yinghuan Shi. Generalizable Medical Image Segmentation via Random Amplitude Mixup and Domain-Specific Image Restoration. European Conference on Computer Vision (ECCV), 2022.
Jian Zhang, Lei Qi, Yinghuan Shi, Yang Gao. Generalizable Model-agnostic Semantic Segmentation via Target-specific Normalization. Pattern Recognition (PR), 2021.
Xiaoting Han^*, Lei Qi^*, Qian Yu, Ziqi Zhou, Yefeng Zheng, Yinghuan Shi, Yang Gao. Deep Symmetric Adaptation Network for Cross-modality Medical Image Segmentation. IEEE Transactions on Medical Imaging (IEEE TMI), 2021.
Lei Qi, Lei Wang, Jing Huo, Yinghuan Shi, Xin Geng, Yang Gao. Adversarial Camera Alignment Network for Unsupervised Cross-camera Person Re-identification. IEEE Transactions on Circuits and Systems for Video Technology (IEEE TCSVT), 2021.
Lei Qi, Lei Wang, Jing Huo, Yinghuan Shi, Yang Gao. GreyReID: A Two-stream Deep Framework with RGB-grey Information for Person Re-identification. ACM Transactions on Multimedia Computing Communications and Application (ACM TOMM), 2020.
Lei Qi, Peize Yu, Yang Gao. Research on Weak-Supervised Person Re-Identification. Journal of Software (软件学报), 2020.
Lei Qi, Lei Wang, Jing Huo, Yinghuan Shi, Yang Gao. Progressive Cross-camera Soft-label Learning for Semi-supervised Person Re-identification. IEEE Transactions on Circuits and Systems for Video Technology (IEEE TCSVT), 2020.
Lei Qi, Lei Wang, Jing Huo, Luping Zhou, Yinghuan Shi, Yang Gao. A Novel Unsupervised Camera-aware Domain Adaptation Framework for Person Re-identification. IEEE International Conference on Computer Vision (ICCV), 2019.

Teaching

Artificial Intelligence (人工智能) - Fall 2025