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TrajectoryCrafter: Redirecting Camera Trajectory for Monocular Videos via Diffusion Models

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arxiv 2503.05638 v1 pith:LF6ISFLG submitted 2025-03-07 cs.CV cs.AIcs.GR

classification cs.CVcs.AIcs.GR
keywords videosmonocularcameramulti-viewcontentdiffusiongenerationmethod
verification ladder T0 review T1 audit T2 compute T3 formal
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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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Cited by 16 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Rays as Pixels: Learning A Joint Distribution of Videos and Camera Trajectories

    cs.CV 2026-04 unverdicted novelty 7.0 of 10

    Encoding cameras as pixel-aligned raxels lets one video diffusion model jointly denoise video and trajectories, supporting pose estimation, controlled generation, and joint synthesis.

  2. FlexComposer: Unified Video Compositing from Images to Dynamic Footage with Flexible Trajectory Control

    cs.CV 2026-07 conditional novelty 6.0 of 10

    A single video-diffusion framework composites both static images and dynamic footage along user-defined trajectories by transporting canonical foreground latents directly into the background latent sequence.

  3. ID-V2V: Identity-Preserving Video Restylization

    cs.CV 2026-07 conditional novelty 6.0 of 10

    ID-V2V restyles video by conditioning a diffusion model on edited keyframes, depth, relit faces, and face normals, so scene edits propagate while facial identity and performance are preserved.

  4. UCM: Unified Modeling of Camera Control and Memory with Time-aware Positional Encoding Warping for World Models

    cs.CV 2026-02 conditional novelty 6.0 of 10

    A video-generation world model that warps positional encodings of memory frames to target viewpoints achieves state-of-the-art long-term consistency and camera control.

  5. CustomX: Unified Character, Action, and Scene Customization in Video World Models

    cs.CV 2025-12 conditional novelty 6.0 of 10

    AniX generates controllable videos of a user-supplied character performing typed actions inside a user-supplied 3D scene by fine-tuning a pre-trained video generator on small locomotion datasets.

  6. PostCam: Camera-Controllable Novel-View Video Generation with Query-Shared Cross-Attention

    cs.CV 2025-11 conditional novelty 6.0 of 10

    PostCam generates new videos from a reference video along user-specified camera trajectories using a query-shared cross-attention that fuses pose data and rendered frames, improving control precision and detail preservation.

  7. E-4DGS: High-Fidelity Dynamic Reconstruction from the Multi-view Event Cameras

    cs.CV 2025-08 conditional novelty 6.0 of 10

    E-4DGS is a deformable 3D Gaussian Splatting method that reconstructs dynamic scenes directly from multi-view event camera streams, outperforming event-to-image baseline approaches.

  8. 4DVD: Cascaded Dense-view Video Diffusion Model for High-quality 4D Content Generation

    cs.CV 2025-08 conditional novelty 6.0 of 10

    A two-stage cascaded video diffusion model generates 16-view consistent videos from a monocular video, enabling higher-quality 4D content reconstruction.

  9. SeqTex: Generate Mesh Textures in Video Sequence

    cs.CV 2025-07 conditional novelty 6.0 of 10

    SeqTex adapts a pretrained video diffusion model to directly generate complete UV texture maps by jointly predicting four multi-view images and the UV map as a five-frame sequence.

  10. Video World Models with Long-term Spatial Memory

    cs.CV 2025-06 conditional novelty 6.0 of 10

    An autoregressive video world model with a persistent static point-cloud spatial memory and sparse episodic keyframes improves revisit consistency over point-cloud-conditioned baselines.

  11. EPiC: Efficient Video Camera Control Learning with Precise Anchor-Video Guidance

    cs.CV 2025-05 conditional novelty 6.0 of 10

    EPiC trains a 30M-parameter visibility-aware ControlNet on mask-based anchor videos from 5,000 in-the-wild videos and 500 steps, reaching SOTA camera accuracy on RealEstate10K and MiraData.

  12. GS2E: Gaussian Splatting is an Effective Data Generator for Event Stream Generation

    cs.CV 2025-05 conditional novelty 6.0 of 10

    A pipeline that turns sparse multi-view RGB images into a claimed 1,150-scene synthetic event dataset using 3D Gaussian Splatting rendering plus a stochastic event simulator.

  13. PE-Field 4D: Video Generation Models as Canvas

    cs.CV 2026-07 conditional novelty 5.0 of 10

    Warping reference tokens' positional encodings into the target view, with depth offsets and frame-level compression fixes, improves geometry-aware camera control in video diffusion transformers.

  14. Follow-Your-Instruction: A Comprehensive MLLM Agent for World Data Synthesis

    cs.CV 2025-08 conditional novelty 5.0 of 10

    An MLLM-driven pipeline that composes 3D scenes from assets, optimizes them with multi-view VLM feedback, and renders videos, yielding synthetic data that modestly improves several 2D, 3D, and 4D generative baselines.

  15. Follow-Your-Creation: Empowering 4D Creation through Video Inpainting

    cs.CV 2025-06 conditional novelty 5.0 of 10

    Follow-Your-Creation fine-tunes the Wan2.1 video inpainting model on composite point-cloud and editing masks so a single monocular video can be converted into editable 4D video with new camera motion.

  16. Dynamic View Synthesis as an Inverse Problem

    cs.CV 2025-06 reject novelty 3.0 of 10

    Dynamic view synthesis from a monocular video is achieved by redesigning the noise initialization of a pretrained video diffusion model using a recursive interpolation and a stochastic latent modulation.

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