Instant Volumetric Head Avatars. (arXiv:2211.12499v1 [cs.CV])

We present Instant Volumetric Head Avatars (INSTA), a novel approach for
reconstructing photo-realistic digital avatars instantaneously. INSTA models a
dynamic neural radiance field based on neural graphics primitives embedded
around a parametric face model. Our pipeline is trained on a single monocular
RGB portrait video that observes the subject under different expressions and
views. While state-of-the-art methods take up to several days to train an
avatar, our method can reconstruct a digital avatar in less than 10 minutes on
modern …

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