Despite significant advancements in video generation and editing using
diffusion models, achieving accurate and localized video editing remains a
substantial challenge. Additionally, most existing video editing methods
primarily focus on altering visual content, with limited research dedicated to
motion editing. In this paper, we present a novel attempt to Remake a Video
(ReVideo) which stands out from existing methods by allowing precise video
editing in specific areas through the specification of both content and motion.
Content editing is facilitated by modifying the first frame, while the
trajectory-based motion control offers an intuitive user interaction
experience. ReVideo addresses a new task involving the coupling and training
imbalance between content and motion control. To tackle this, we develop a
three-stage training strategy that progressively decouples these two aspects
from coarse to fine. Furthermore, we propose a spatiotemporal adaptive fusion
module to integrate content and motion control across various sampling steps
and spatial locations. Extensive experiments demonstrate that our ReVideo has
promising performance on several accurate video editing applications, i.e., (1)
locally changing video content while keeping the motion constant, (2) keeping
content unchanged and customizing new motion trajectories, (3) modifying both
content and motion trajectories. Our method can also seamlessly extend these
applications to multi-area editing without specific training, demonstrating its
flexibility and robustness.

本文介绍了一种名为 ReVideo 的视频重制方法，通过指定内容和运动，允许在特定区域进行精确的视频编辑。通过修改第一帧实现内容编辑，而基于轨迹的运动控制提供了直观的用户交互体验。通过逐步分离内容和运动控制的训练策略以及时空自适应融合模块，解决了内容和运动控制之间的任务耦合和训练不平衡问题。广泛的实验证明，ReVideo 在几个精确的视频编辑应用上表现出有希望的性能，包括：（1）在保持运动恒定的情况下局部改变视频内容，（2）保持内容不变并自定义新的运动轨迹，（3）修改内容和运动轨迹。该方法还可以无需特定训练地无缝扩展到多区域编辑，展示了它的灵活性和鲁棒性。