arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2605.23192cs.CV

遮挡感知的物理-语义关键帧选择用于鲁棒视频编辑

Occlusion-Aware Physics-Semantic Keyframe Selection for Robust Video Editing

Huawei(华为);Tsinghua University(清华大学);East China Normal University(华东师范大学)

Lin Liu, Zhihan Xiao, Haohang Xu, Rong Cong, Zhibo Zhang, Xiaopeng Zhang, Qi Tian

AI总结:

提出一种遮挡感知的物理-语义关键帧选择框架,通过从结构完整性、跟踪稳定性和属性可见性三个角度评估候选帧,自动选择最优锚定帧,并利用双向跟踪生成时空掩码,实现鲁棒且时序一致的视频编辑。

摘要:

近年来,基于扩散的生成模型在视频编辑领域取得了显著进展,能够根据自然语言指令实现多样化的对象级操作。然而,现有方法在遮挡、视角变化和快速物体运动场景下常常表现不佳,不可靠的视觉观测导致定位不准确、时间闪烁和编辑不一致。在本工作中,我们识别出缺乏可靠视觉锚点是遮挡鲁棒视频编辑的一个根本瓶颈。为解决此问题,我们提出了一种遮挡感知的物理-语义关键帧选择框架,该框架自动为下游编辑识别最优锚定帧。具体而言,我们的方法从三个互补角度评估候选帧:避免截断观测的结构完整性、衡量物理可靠性的循环一致跟踪稳定性、以及确保语义清晰性的基于视觉语言的属性可见性。选定的关键帧随后通过双向跟踪传播,生成密集的时空掩码,这些掩码作为扩散视频编辑骨干的辅助监督。通过将遮挡处理从显式重建转变为可靠锚点选择,我们的框架无需手动标注即可实现精确且时序一致的编辑。在具有挑战性的视频编辑基准上的大量实验证明了我们方法的有效性和高质量性能。

英文摘要:

Video editing has recently achieved remarkable progress with diffusion-based generative models, enabling diverse object-level manipulations from natural language instructions. However, existing methods often struggle under occlusion, viewpoint changes, and fast object motion, where unreliable visual observations lead to inaccurate localization, temporal flickering, and inconsistent edits. In this work, we identify the absence of reliable visual anchors as a fundamental bottleneck in occlusion-robust video editing. To address this issue, we propose an occlusion-aware physics-semantic keyframe selection framework that automatically identifies an optimal anchor frame for downstream editing. Specifically, our method evaluates candidate frames from three complementary perspectives: structural completeness for avoiding truncated observations, cycle-consistent tracking stability for measuring physical reliability, and vision-language-based attribute visibility for ensuring semantic clarity. The selected keyframe is then propagated through bidirectional tracking to generate dense spatiotemporal masks, which are used as auxiliary supervision for a diffusion-based video editing backbone. By transforming occlusion handling from explicit reconstruction into reliable anchor selection, our framework enables precise and temporally consistent editing without requiring manual annotations. Extensive experiments on challenging video editing benchmarks demonstrate the effectiveness and high-quality performance of our method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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