Differences between 2D Scan, 3D Scan, and 4D Scans. 2D, 3D, and 4D ultrasound scans differ in the level of detail and complexity they provide. 2D ultrasound scans provide a flat, two-dimensional ...

3D models will be estimated and will be extended to learn per-pixel motion in dynamic scenes, using pre-annotated sparse temporal 2D/3D labels for 4D reconstruction from monocular video. This captures ...

This paper proposes Instruct 4D-to-4D that achieves 4D awareness and spatial-temporal consistency for 2D diffusion models to generate high-quality instruction-guided dynamic scene editing results.

Figure 1: 4D quantum Hall system and the corresponding 2D topological charge pump. For a uniformly populated band in an infinite system, the centre-of-mass (COM) displacement during one cycle φ x ...