[KongchangAI]
PaperVideo Diffusion Avatars

VDAs

A method that uses video diffusion model priors to generate realistic, multi-view-consistent and controllable virtual humans from a single image. It replaces 3DMM with a learned expression space and decouples view bias.

Timeline (last 90 days)

Oct 19

VDAs (Video Diffusion Avatars) is a method that leverages video diffusion model priors to generate photorealistic, multi-view consistent and controllable avatars from a single image.

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Oct 19

VDAs replace 3DMM with a learned expression space to break through the expressive ceiling of 3DMM.

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Oct 19

Disentanglement can eliminate the view bias of learned expression encodings, enabling the encoding to serve as a driving signal for multi-view consistent avatars.

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Oct 19

VDAs delegate control of camera viewpoint and upper-body pose uniformly to proxy mesh rendering, while expressions go through the learned encoding channel, so the three are independent of one another and can be adjusted separately.

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Oct 19

VDAs adopts a camera-triplet training strategy, completing training on a single A100 in only 34 hours and relying solely on public multi-view data.

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Oct 19

On the novel-view reenactment task, VDAs on the BecomingLit dataset reduces facial LPIPS by 29% and improves JOD by 66% compared with the strongest single-image 3D avatar method.

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Oct 19

Static 3DGS reconstruction probe experiments confirm that VDAs' generation results perform best in multi-view consistency.

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Oct 19

VDAs can produce physical effects that explicit renderers struggle to achieve, such as hair dynamics, shadows, reflections and refractions—implicit knowledge learned from video data.

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