GenCompositor: Generative Video Compositing with Diffusion Transformer

Fuente: arXiv
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Auteurs principaux: Yang, Shuzhou, Li, Xiaoyu, Cun, Xiaodong, Wang, Guangzhi, Li, Lingen, Shan, Ying, Zhang, Jian
Format: Preprint
Publié: 2025
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author Yang, Shuzhou
Li, Xiaoyu
Cun, Xiaodong
Wang, Guangzhi
Li, Lingen
Shan, Ying
Zhang, Jian
author_facet Yang, Shuzhou
Li, Xiaoyu
Cun, Xiaodong
Wang, Guangzhi
Li, Lingen
Shan, Ying
Zhang, Jian
contents Video compositing combines live-action footage to create video production, serving as a crucial technique in video creation and film production. Traditional pipelines require intensive labor efforts and expert collaboration, resulting in lengthy production cycles and high manpower costs. To address this issue, we automate this process with generative models, called generative video compositing. This new task strives to adaptively inject identity and motion information of foreground video to the target video in an interactive manner, allowing users to customize the size, motion trajectory, and other attributes of the dynamic elements added in final video. Specifically, we designed a novel Diffusion Transformer (DiT) pipeline based on its intrinsic properties. To maintain consistency of the target video before and after editing, we revised a light-weight DiT-based background preservation branch with masked token injection. As to inherit dynamic elements from other sources, a DiT fusion block is proposed using full self-attention, along with a simple yet effective foreground augmentation for training. Besides, for fusing background and foreground videos with different layouts based on user control, we developed a novel position embedding, named Extended Rotary Position Embedding (ERoPE). Finally, we curated a dataset comprising 61K sets of videos for our new task, called VideoComp. This data includes complete dynamic elements and high-quality target videos. Experiments demonstrate that our method effectively realizes generative video compositing, outperforming existing possible solutions in fidelity and consistency. Project is available at https://gencompositor.github.io/
format Preprint
id arxiv_https___arxiv_org_abs_2509_02460
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle GenCompositor: Generative Video Compositing with Diffusion Transformer
Yang, Shuzhou
Li, Xiaoyu
Cun, Xiaodong
Wang, Guangzhi
Li, Lingen
Shan, Ying
Zhang, Jian
Computer Vision and Pattern Recognition
Video compositing combines live-action footage to create video production, serving as a crucial technique in video creation and film production. Traditional pipelines require intensive labor efforts and expert collaboration, resulting in lengthy production cycles and high manpower costs. To address this issue, we automate this process with generative models, called generative video compositing. This new task strives to adaptively inject identity and motion information of foreground video to the target video in an interactive manner, allowing users to customize the size, motion trajectory, and other attributes of the dynamic elements added in final video. Specifically, we designed a novel Diffusion Transformer (DiT) pipeline based on its intrinsic properties. To maintain consistency of the target video before and after editing, we revised a light-weight DiT-based background preservation branch with masked token injection. As to inherit dynamic elements from other sources, a DiT fusion block is proposed using full self-attention, along with a simple yet effective foreground augmentation for training. Besides, for fusing background and foreground videos with different layouts based on user control, we developed a novel position embedding, named Extended Rotary Position Embedding (ERoPE). Finally, we curated a dataset comprising 61K sets of videos for our new task, called VideoComp. This data includes complete dynamic elements and high-quality target videos. Experiments demonstrate that our method effectively realizes generative video compositing, outperforming existing possible solutions in fidelity and consistency. Project is available at https://gencompositor.github.io/
title GenCompositor: Generative Video Compositing with Diffusion Transformer
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2509.02460