Authors: Ruining Li, Chuanxia Zheng, Christian Rupprecht, Andrea Vedaldi
Abstract: We present Puppet-Master, an interactive video generative model that can
serve as a motion prior for part-level dynamics. At test time, given a single
image and a sparse set of motion trajectories (i.e., drags), Puppet-Master can
synthesize a video depicting realistic part-level motion faithful to the given
drag interactions. This is achieved by fine-tuning a large-scale pre-trained
video diffusion model, for which we propose a new conditioning architecture to
inject the dragging control effectively. More importantly, we introduce the
all-to-first attention mechanism, a drop-in replacement for the widely adopted
spatial attention modules, which significantly improves generation quality by
addressing the appearance and background issues in existing models. Unlike
other motion-conditioned video generators that are trained on in-the-wild
videos and mostly move an entire object, Puppet-Master is learned from
Objaverse-Animation-HQ, a new dataset of curated part-level motion clips. We
propose a strategy to automatically filter out sub-optimal animations and
augment the synthetic renderings with meaningful motion trajectories.
Puppet-Master generalizes well to real images across various categories and
outperforms existing methods in a zero-shot manner on a real-world benchmark.
See our project page for more results: vgg-puppetmaster.github.io.
Source: http://arxiv.org/abs/2408.04631v1
