I am currently a joint Ph.D. candidate of Shanghai Jiao Tong University and Monash University from SEIEE since 2021, working with Prof. Weiyao Lin, Prof. Jianfei Cai and Prof. Mehrtash Harandi. Before that, I spent 4 wonderful years studying at Dalian University of Technology as an undergraduate student since 2017 (top 5%). My research interests include NeRF/3DGS compression, image/video compression and computer vision. I am also happy to share my good friend Qianyi Wu’s fantastic works here.
If you are interested in my work, please contact me via yhchendut@gmail.com.
🎯 Research Interests
- Current Interest: Image & Video Generation, World Model
- 3D Scene Reconstruction/Volume Rendering: Neural Radiance Field (NeRF), 3D Gaussian Splatting (3DGS), et al.
- Compression Techniques: 3D Representation Compression, Image/Video Compression, et al.
🔥 News
- 2026: 🎉🎉 1 AAAI Oral, 1 NeurIPS is accepted!
- 2025: 🔥🔥 I will join NVIDIA Research in Santa Clara, CA, as a Research Intern in May 2025! See you there!
- 2025: ✈️✈️ I will attend ICLR conference in Singapore in April. Looking forward to seeing old/new friends!
- 2025: 🎉🎉 1 ICLR, 1 TPAMI is accepted!
- 2024: ✈️✈️ I will attend CVPR conference in Seattle in June. Looking forward to seeing old/new friends!
- 2024: 🎉🎉 1 CVPR, 1 ACM TOMM, 1 ECCV, 1 NIPS are accepted!
📝 Selected Projects (Googl Scholar)
🌍 Image & Video Generation, World Model

Jia Li, Han Yan, Yihang Chen, Siqi Li, Xibin Song, Yifu Wang, Jianfei Cai, Tien-Tsin Wong, Pan Ji
arXiv preprint, 2026
| Arxiv | Project | Github |
- I3DM enables consistent video scene generation through implicit 3D-aware memory retrieval and injection.
- It improves revisit consistency and camera control without explicit 3D reconstruction.

Meng Wei, Cheng Zhang, Boying Li, Yihang Chen, Jianmin Zheng, Hamid Rezatofighi, Jianfei Cai
Neural Information Processing Systems (NeurIPS), 2026
- A unified feedforward novel view synthesis framework for heterogeneous cameras, including perspective, fisheye, and panoramic projections.
- Local raymaps and projection-aware 2D RoPE improve mixed-camera synthesis and enable zero-shot generalization to panoramic views.
📦 3D Representation & Compression

Yihang Chen*, Mengyao Li*, Qianyi Wu, Weiyao Lin, Mehrtash Harandi, Jianfei Cai
The 40th Annual AAAI Conference on Artificial Intelligence (AAAI), Oral Presentation, 2026
- PCGS provides a progressive compression solution for on-demand applications.
- It enables reuse of existing bitstreams for enhenced fidelity when dynamic bandwidth or diversion storage occurs.

Yihang Chen, Qianyi Wu, Weiyao Lin, Mehrtash Harandi, Jianfei Cai
IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI)
- HAC++ is an enhanced compression method over HAC!

Yihang Chen, Qianyi Wu, Mengyao Li, Weiyao Lin, Mehrtash Harandi, Jianfei Cai
International Conference on Learning Representations (ICLR), 2025
Paper |Arxiv | Project | Github
- Compress existing 3DGS rapidly in seconds without per-scene optimization!

Yihang Chen, Qianyi Wu, Weiyao Lin, Mehrtash Harandi, Jianfei Cai
European Conference on Computer Vision (ECCV), 2024
Paper | Arxiv | Project | Github
- Compress 3D Gaussian Splatting for 75X without fidelity drop!

Yihang Chen, Qianyi Wu, Mehrtash Harandi, Jianfei Cai
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2024
Paper | Arxiv | Project | Github
- Significant compression ratio of 100X based on Instant-NGP!

Shizhan Liu, Weiyao Lin, Yihang Chen, Yufeng Zhang, Wenrui Dai, John See, Hongkai Xiong
ACM Transactions on Multimedia Computing, Communications, and Applications (ACM TOMM), 2024
🧭 Other Fields

Tieyuan Chen*, Huabin Liu*, Tianyao He, Yihang Chen, Chaofan Gan, et. al
Neural Information Processing Systems (NeurIPS), Spotlight, 2024
🎓 Educations
- 2021.09 - present, PhD Candidate (Joint), Information and Communication Engineering. Shanghai Jiao Tong University.
- 2021.09 - present, PhD Candidate (Joint), Electrical and Computer Systems Engineering. Monash University.
- 2017.09 - 2021.06, Undergraduate, Electronic Information Engineering (English Intensive). Dalian University of Technology.