Hierarchy UGP: Hierarchy Unified Gaussian Primitive for Large-Scale Dynamic Scene Reconstruction. - Hongyang Sun 005; Qinglin Yang; Jiawei Wang; Zhen Xu 008; Chen Liu 028; Yida Wang; Kun Zhan; Hujun Bao; Xiaowei Zhou 001; Sida Peng (ICCV, 2025)