📝 Selected Publications

AAAI 2026 Oral

RealRep: Generalized SDR-to-HDR Conversion via Attribute-Disentangled Representation Learning

Li Xu, Siqi Wang, Kepeng Xu, Gang He, Lin Zhang, Weiran Wang, Yu-Wing Tai.

• Attribute-disentangled representation learning for more generalizable real-world SDR-to-HDR conversion.

IJCAI 2025

Unleashing the Potential of Transformer Flow for Photorealistic Face Restoration

Kepeng Xu, Li Xu, Gang He, Wei Chen, Xianyun Wu, Wenxin Yu.

Project

• Transformer flow matching for high-quality photorealistic face restoration.

IJCAI 2025

Beyond Feature Mapping GAP: Integrating Real HDRTV Priors for Superior SDRTV-to-HDRTV Conversion

Gang He, Kepeng Xu, Li Xu, Zhiqiang Zhang, Wenxin Yu, Shihao Wang, Dajiang Zhou, Yunsong Li.

• Real HDRTV priors for improved SDR-to-HDR conversion in practical scenarios.

IEEE T-IV

Pedestrian-Vehicle Information Modulation for Pedestrian Crossing Intention Prediction

Li Xu, Shaodi You, Gang He, Yunsong Li.

Project

• Pedestrian-vehicle information modulation for pedestrian crossing intention prediction.

ACM MM 2024

An End-to-End Real-World Camera Imaging Pipeline

Kepeng Xu, Zijia Ma, Li Xu, Gang He, et al.

Project

• End-to-end real-world camera imaging pipeline for complex distortions.

IJCAI 2024

Beyond Alignment: Blind Video Face Restoration via Parsing-Guided Temporal-Coherent Transformer

Kepeng Xu, Li Xu, Gang He, et al.

Project

• Parsing-guided temporal-coherent transformer for clearer and more consistent video face restoration.

ACM MM 2022

SDRTV-to-HDRTV via Hierarchical Dynamic Context Feature Mapping

Gang He, Kepeng Xu, Li Xu, Chang Wu, Ming Sun, Xing Wen, Yu-Wing Tai.

Project

• Hierarchical dynamic context feature mapping for high-quality HDR conversion.

AAAI 2022

Transcoded Video Restoration by Temporal Spatial Auxiliary Network

Li Xu, Gang He, Jinjia Zhou, Jie Lei, Weiying Xie, Yunsong Li, Yu-Wing Tai.

• Temporal-spatial auxiliary network for improving transcoded video quality.

• AAAI 2026 Oral Li Xu, Siqi Wang, Kepeng Xu, Gang He, Lin Zhang, Weiran Wang, Yu-Wing Tai. RealRep: Generalized SDR-to-HDR Conversion via Attribute-Disentangled Representation Learning [C]. Proceedings of the AAAI Conference on Artificial Intelligence, 2026.

• IJCAI 2025 Kepeng Xu, Li Xu, Gang He, Wei Chen, Xianyun Wu, Wenxin Yu. Unleashing the Potential of Transformer Flow for Photorealistic Face Restoration [C]. Proceedings of the Thirty-Fourth International Joint Conference on Artificial Intelligence, Montreal, Canada, 2025.

• IJCAI 2025 Gang He, Kepeng Xu, Li Xu, Zhiqiang Zhang, Wenxin Yu, Shihao Wang, Dajiang Zhou, Yunsong Li. Beyond Feature Mapping GAP: Integrating Real HDRTV Priors for Superior SDRTV-to-HDRTV Conversion [C]. Proceedings of the Thirty-Fourth International Joint Conference on Artificial Intelligence, Montreal, Canada, 2025.

• T-IV Li Xu, Shaodi You, Gang He, Yunsong Li. Pedestrian-Vehicle Information Modulation for Pedestrian Crossing Intention Prediction [J]. IEEE Transactions on Intelligent Vehicles.

• ACM MM 2024 Kepeng Xu, Zijia Ma, Li Xu, Gang He, Yunsong Li, Wenxin Yu, Taichu Han, Cheng Yang. An End-to-End Real-World Camera Imaging Pipeline, Melbourne, Australia, 2024.

• IJCAI 2024 Kepeng Xu, Li Xu, Gang He, Wenxin Yu, Yunsong Li. Beyond Alignment: Blind Video Face Restoration via Parsing-Guided Temporal-Coherent Transformer [C]. Proceedings of the Thirty-Third International Joint Conference on Artificial Intelligence, Jeju, Korea, 2024.

• NC Gang He, Shaoyi Long, Li Xu, Chang Wu, Jinjia Zhou, Ming Sun, Yurong Dai. Global priors guided modulation network for joint super-resolution and SDRTV-to-HDRTV [J]. Neurocomputing 554 (2023): 126590.

• Arxiv Kepeng Xu, Li Xu, Gang He, Wenxin Yu, Yunsong Li. Towards Robust SDRTV-to-HDRTV via Dual Inverse Degradation Network. 2023.

• AAAI 2022 Li Xu, Gang He, Jinjia Zhou, Jie Lei, Weiying Xie, Yunsong Li, Yu-Wing Tai. Transcoded Video Restoration by Temporal Spatial Auxiliary Network [C]. Proceedings of the AAAI Conference on Artificial Intelligence, Vancouver, BC, Canada, 2022: Vol. 36. No. 3. 2022.

• DSP Li Xu, Chang Wu, Linyi Huang, Shengyu Wei, Gang He, Yunsong Li. Towards coding for VoD application: An enhanced video compression system with a content-fitted recursive restoration network [J]. Digital Signal Processing 122 (2022): 103368.

• T-CSVT Gang He, Li Xu, Jie Lei, Weiying Xie, Yunsong Li, Yibo Fan, Jinjia Zhou. Interlayer Restoration Deep Neural Network for Scalable High Efficiency Video Coding [J]. IEEE Transactions on Circuits and Systems for Video Technology, vol. 32, no. 5, pp. 3217-3234, May 2022.
• ACM MM 2022 Gang He, Kepeng Xu, Li Xu, Chang Wu, Ming Sun, Xing Wen, Yu-Wing Tai. SDRTV-to-HDRTV via Hierarchical Dynamic Context Feature Mapping [C]. Proceedings of the 30th ACM International Conference on Multimedia, Lisbon, Portugal, 2022. p. 2890-2898.
• CVPRW 2022 Gang He, Yong Wang, Li Xu, Wenli Zhang, Ming Sun, Xing Wen. Focused Feature Differentiation Network for Image Quality Assessment [C]. Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshop, New Orleans, Louisiana, USA, 2022. p. 1800-1804.
• Arxiv Kepeng Xu, Li Xu, Zijia Ma, Ming Sun, Yu-Wing Tai. Sdrtv-to-hdrtv conversion via spatial-temporal feature fusion. 2022.

🎖 Honors and Awards

• 2022 Chinese National Scholarship for Ph.D. Students
• 2022 The 5th Challenge on Learned Image Compression, CVPR workshop (3rd Place)
• 2020 Outstanding Graduate Student at Xidian University