@article{x2gaussian4dradiativegaussiansplatting,
  title = {X$^{2}$-Gaussian: 4D Radiative Gaussian Splatting for Continuous-time Tomographic Reconstruction},
  author = {Weihao Yu and Yuanhao Cai and Ruyi Zha and Zhiwen Fan and Chenxin Li and Yixuan Yuan},
  year = {2025},
  eprint = {2503.21779},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2503.21779v1},
}