Motion magnification helps us visualize subtle, imperceptible motion.
However, prior methods only work for 2D videos captured with a fixed camera. We
present a 3D motion magnification method that can magnify subtle motions from
scenes captured by a moving camera, while supporting novel view rendering. We
represent the scene with time-varying radiance fields and leverage the Eulerian
principle for motion magnification to extract and amplify the variation of the
embedding of a fixed point over time. We study and validate our proposed
principle for 3D motion magnification using both implicit and tri-plane-based
radiance fields as our underlying 3D scene representation. We evaluate the
effectiveness of our method on both synthetic and real-world scenes captured
under various camera setups.

运用 Euler 原理提取和放大固定点随时间嵌入变化的 3D 运动放大方法，支持运动相机拍摄场景的变化、创新视角渲染。通过时间变化的辐射场来表示场景，并在隐含和三平面辐射场作为三维场景表示中验证所提出的 3D 运动放大原理的有效性。在各种摄像机设置下，我们评估了所提出方法在合成和真实世界场景中的有效性。