4 Dimensional
Four-dimensional (4D) research encompasses the modeling and analysis of three spatial dimensions plus time, aiming to represent and understand dynamic phenomena. Current research focuses on developing methods for generating and analyzing 4D data, employing techniques like Gaussian splatting, neural radiance fields (NeRFs), and diffusion models, often incorporating geometric, topological, and physical priors to improve accuracy and efficiency. This field is significant for its applications in diverse areas such as autonomous driving, medical imaging (e.g., 4D CT scans), human motion capture, and virtual/augmented reality, enabling more realistic and dynamic simulations and analyses.
Papers
Comp4D: LLM-Guided Compositional 4D Scene Generation
Dejia Xu, Hanwen Liang, Neel P. Bhatt, Hezhen Hu, Hanxue Liang, Konstantinos N. Plataniotis, Zhangyang Wang
RSTAR4D: Rotational Streak Artifact Reduction in 4D CBCT using a Separable 4D CNN
Ziheng Deng, Hua Chen, Yongzheng Zhou, Haibo Hu, Zhiyong Xu, Jiayuan Sun, Tianling Lyu, Yan Xi, Yang Chen, Jun Zhao
Virtual Pets: Animatable Animal Generation in 3D Scenes
Yen-Chi Cheng, Chieh Hubert Lin, Chaoyang Wang, Yash Kant, Sergey Tulyakov, Alexander Schwing, Liangyan Gui, Hsin-Ying Lee
Align Your Gaussians: Text-to-4D with Dynamic 3D Gaussians and Composed Diffusion Models
Huan Ling, Seung Wook Kim, Antonio Torralba, Sanja Fidler, Karsten Kreis