MAGREF is a unified framework for video generation that uses masked guidance and dynamic masking for coherent multi-subject synthesis from diverse references and text prompts.
Video generation has made substantial strides with the emergence of deep
generative models, especially diffusion-based approaches. However, video
generation based on multiple reference subjects still faces significant
challenges in maintaining multi-subject consistency and ensuring high
generation quality. In this paper, we propose MAGREF, a unified framework for
any-reference video generation that introduces masked guidance to enable
coherent multi-subject video synthesis conditioned on diverse reference images
and a textual prompt. Specifically, we propose (1) a region-aware dynamic
masking mechanism that enables a single model to flexibly handle various
subject inference, including humans, objects, and backgrounds, without
architectural changes, and (2) a pixel-wise channel concatenation mechanism
that operates on the channel dimension to better preserve appearance features.
Our model delivers state-of-the-art video generation quality, generalizing from
single-subject training to complex multi-subject scenarios with coherent
synthesis and precise control over individual subjects, outperforming existing
open-source and commercial baselines. To facilitate evaluation, we also
introduce a comprehensive multi-subject video benchmark. Extensive experiments
demonstrate the effectiveness of our approach, paving the way for scalable,
controllable, and high-fidelity multi-subject video synthesis. Code and model
can be found at: https://github.com/MAGREF-Video/MAGREF
