TrajectoryCrafter: Redirecting Camera Trajectory for Monocular Videos via Diffusion Models

• URL: http://arxiv.org/abs/2503.05638v1
• Date: Fri, 07 Mar 2025 17:57:53 GMT
• Title: TrajectoryCrafter: Redirecting Camera Trajectory for Monocular Videos via Diffusion Models
• Authors: Mark YU, Wenbo Hu, Jinbo Xing, Ying Shan,
• Abstract summary: TrajectoryCrafter is a novel approach to redirect camera trajectories for monocular videos.<n>By disentangling deterministic view transformations from content generation, our method achieves precise control over user-specified camera trajectories.
• Score: 33.219657261649324
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We present TrajectoryCrafter, a novel approach to redirect camera trajectories for monocular videos. By disentangling deterministic view transformations from stochastic content generation, our method achieves precise control over user-specified camera trajectories. We propose a novel dual-stream conditional video diffusion model that concurrently integrates point cloud renders and source videos as conditions, ensuring accurate view transformations and coherent 4D content generation. Instead of leveraging scarce multi-view videos, we curate a hybrid training dataset combining web-scale monocular videos with static multi-view datasets, by our innovative double-reprojection strategy, significantly fostering robust generalization across diverse scenes. Extensive evaluations on multi-view and large-scale monocular videos demonstrate the superior performance of our method.

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