Instant Volumetric Head Avatars

Figure 1 . Given a short monocular RGB video, our method instantaneously optimizes a deformable neural radiance field to synthesize a photo-realistic animatable 3D neural head avatar. The neural radiance field is embedded in a multi-resolution grid around a 3D face model which guides the deformations. The resulting head avatar can be viewed under novel views and animated at interactive frame rates.