Document detail
ID
oai:arXiv.org:2411.01512
Topic
Computer Science - Computer Vision... Computer Science - GraphicsAuthor
Budria, Alvaro Lopez-Rodriguez, Adrian Lorente, Oscar Moreno-Noguer, FrancescCategory
Computer Science
Year
2024
listing date
12/4/2024
Keywords
avatars instantgeoavatar computerAbstract
We present InstantGeoAvatar, a method for efficient and effective learning from monocular video of detailed 3D geometry and appearance of animatable implicit human avatars.
Our key observation is that the optimization of a hash grid encoding to represent a signed distance function (SDF) of the human subject is fraught with instabilities and bad local minima.
We thus propose a principled geometry-aware SDF regularization scheme that seamlessly fits into the volume rendering pipeline and adds negligible computational overhead.
Our regularization scheme significantly outperforms previous approaches for training SDFs on hash grids.
We obtain competitive results in geometry reconstruction and novel view synthesis in as little as five minutes of training time, a significant reduction from the several hours required by previous work.
InstantGeoAvatar represents a significant leap forward towards achieving interactive reconstruction of virtual avatars.
;Comment: Accepted as poster to Asian Conference on Computer Vison (ACCV 2024)
Budria, Alvaro,Lopez-Rodriguez, Adrian,Lorente, Oscar,Moreno-Noguer, Francesc, 2024, InstantGeoAvatar: Effective Geometry and Appearance Modeling of Animatable Avatars from Monocular Video
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