GeezerVison

I am Yicheng Zhan (战弈诚), a Ph.D. candidate at University College London in the Computational Light Laboratory, advised by Dr. Kaan Akşit. I received my M.Sc. from University College London and my B.Sc. from King’s College London.

My research lies at the intersection of computer vision, generative models, and neural rendering, with a focus on photorealistic 3D content for holographic AR/VR displays. I build learned 3D representations, such as Gaussian splatting and radiance fields, and generative models that bring the wave nature of light, including polarization, interference, and diffraction, into how scenes are captured, represented, and displayed. I also develop wave-optics renderers to simulate these light phenomena.

My main goal is to build visual models that behave like the real world, serving as reliable sources of reality beyond visually correct scenes. Applications span AR/VR, next-generation holographic displays, virtual production, and physically accurate simulation for scientific discovery and machine perception.

Reviewer: SIGGRAPH, SIGGRAPH Asia, AAAI, ISMAR (conferences); IEEE TVCG, Optica, Optics Express (journals)

1. ECCV

   

   Complex-Valued 2D Gaussian Representation for Computer-Generated Holography

   Yicheng Zhan^*, Xiangjun Gao^*, Long Quan, and Kaan Akşit * Equal Contribution

   In Computer Vision – ECCV 2026, Malmö, Sweden, Sep 2026

   DOI arXiv Bib PDF Code Website

   @inproceedings{zhan2026complexvalued2d,
     author = {Zhan, Yicheng and Gao, Xiangjun and Quan, Long and Ak\c{s}it, Kaan},
     title = {Complex-Valued 2D Gaussian Representation for Computer-Generated Holography},
     year = {2026},
     month = sep,
     booktitle = {Computer Vision -- ECCV 2026},
     editor = {Favaro, Paolo and Kukelova, Zuzana and Maki, Atsuto and Rohrbach, Anna and Schindler, Konrad and Tombari, Federico},
     publisher = {Springer Nature Switzerland},
     address = {Cham},
     pages = {557--576},
     isbn = {978-3-032-37574-2},
     location = {Malmö, Sweden},
     doi = {10.1007/978-3-032-37574-2_31},
     url = {https://arxiv.org/abs/2511.15022},
   }

2. ACM TOG

   

   Complex-Valued Holographic Radiance Fields

   Yicheng Zhan, Dong-Ha Shin, Seung-Hwan Baek, and Kaan Akşit

   ACM Transactions on Graphics (Presented in SIGGRAPH 2026), Los Angeles, California, USA, Apr 2026

   DOI arXiv Bib PDF Code Website

   Highlight at Graphics4Science Workshop at SIGGRAPH 2026

   @article{zhan2025complexvalued,
     author = {Zhan, Yicheng and Shin, Dong-Ha and Baek, Seung-Hwan and Ak\c{s}it, Kaan},
     title = {Complex-Valued Holographic Radiance Fields},
     year = {2026},
     issue_date = {June 2026},
     publisher = {Association for Computing Machinery},
     address = {New York, NY, USA},
     volume = {45},
     number = {3},
     issn = {0730-0301},
     url = {https://doi.org/10.1145/3804450},
     doi = {10.1145/3804450},
     journal = {ACM Transactions on Graphics (Presented in SIGGRAPH 2026)},
     month = apr,
     articleno = {31},
     numpages = {16},
     keywords = {Novel view synthesis, radiance fields, 3D gaussians, computer-generated holography},
     location = {Los Angeles, California, USA},
   }

3. AAAI

   

   Enhancing Binary Encoded Crime Linkage Analysis Using Siamese Network

   Yicheng Zhan, Fahim Ahmed, Amy Burrell, Matthew Tonkin, Sarah Galambos, Jessica Woodhams, and Dalal Alrajeh

   In Proceedings of the AAAI Conference on Artificial Intelligence, Singapore, Mar 2026

   DOI arXiv Bib PDF Code

   @article{zhan2026enhancing,
     author = {Zhan, Yicheng and Ahmed, Fahim and Burrell, Amy and Tonkin, Matthew and Galambos, Sarah and Woodhams, Jessica and Alrajeh, Dalal},
     title = {Enhancing Binary Encoded Crime Linkage Analysis Using Siamese Network},
     year = {2026},
     month = mar,
     journal = {In Proceedings of the AAAI Conference on Artificial Intelligence},
     volume = {40},
     number = {46},
     pages = {39576--39584},
     publisher = {AAAI Press},
     location = {Singapore},
     doi = {10.1609/aaai.v40i46.41309},
     url = {https://ojs.aaai.org/index.php/AAAI/article/view/41309},
   }

4. arXiv

   

   Configurable Holography: Towards Display and Scene Adaptation

   Yicheng Zhan, Liang Shi, Wojciech Matusik, Qi Sun, and Kaan Akşit

   arXiv preprint arXiv:2405.01558, Mar 2024

   arXiv Bib PDF

   @article{zhan2024configurable,
     author = {Zhan, Yicheng and Shi, Liang and Matusik, Wojciech and Sun, Qi and Ak\c{s}it, Kaan},
     title = {Configurable Holography: Towards Display and Scene Adaptation},
     journal = {arXiv preprint arXiv:2405.01558},
     year = {2024},
     url = {https://arxiv.org/abs/2405.01558},
   }