PoseTraj: Pose-Aware Trajectory Control in Video Diffusion

• URL: http://arxiv.org/abs/2503.16068v1
• Date: Thu, 20 Mar 2025 12:01:43 GMT
• Title: PoseTraj: Pose-Aware Trajectory Control in Video Diffusion
• Authors: Longbin Ji, Lei Zhong, Pengfei Wei, Changjian Li,
• Abstract summary: We introduce PoseTraj, a pose-aware video dragging model for generating 3D-aligned motion from 2D trajectories.<n>Our method adopts a novel two-stage pose-aware pretraining framework, improving 3D understanding across diverse trajectories.
• Score: 17.0187150041712
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Recent advancements in trajectory-guided video generation have achieved notable progress. However, existing models still face challenges in generating object motions with potentially changing 6D poses under wide-range rotations, due to limited 3D understanding. To address this problem, we introduce PoseTraj, a pose-aware video dragging model for generating 3D-aligned motion from 2D trajectories. Our method adopts a novel two-stage pose-aware pretraining framework, improving 3D understanding across diverse trajectories. Specifically, we propose a large-scale synthetic dataset PoseTraj-10K, containing 10k videos of objects following rotational trajectories, and enhance the model perception of object pose changes by incorporating 3D bounding boxes as intermediate supervision signals. Following this, we fine-tune the trajectory-controlling module on real-world videos, applying an additional camera-disentanglement module to further refine motion accuracy. Experiments on various benchmark datasets demonstrate that our method not only excels in 3D pose-aligned dragging for rotational trajectories but also outperforms existing baselines in trajectory accuracy and video quality.

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