Generalizable Human Gaussians for Sparse View Synthesis

Fuente: arXiv
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Main Authors: Kwon, Youngjoong, Fang, Baole, Lu, Yixing, Dong, Haoye, Zhang, Cheng, Carrasco, Francisco Vicente, Mosella-Montoro, Albert, Xu, Jianjin, Takagi, Shingo, Kim, Daeil, Prakash, Aayush, De la Torre, Fernando
Format: Preprint
Published: 2024
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author Kwon, Youngjoong
Fang, Baole
Lu, Yixing
Dong, Haoye
Zhang, Cheng
Carrasco, Francisco Vicente
Mosella-Montoro, Albert
Xu, Jianjin
Takagi, Shingo
Kim, Daeil
Prakash, Aayush
De la Torre, Fernando
author_facet Kwon, Youngjoong
Fang, Baole
Lu, Yixing
Dong, Haoye
Zhang, Cheng
Carrasco, Francisco Vicente
Mosella-Montoro, Albert
Xu, Jianjin
Takagi, Shingo
Kim, Daeil
Prakash, Aayush
De la Torre, Fernando
contents Recent progress in neural rendering has brought forth pioneering methods, such as NeRF and Gaussian Splatting, which revolutionize view rendering across various domains like AR/VR, gaming, and content creation. While these methods excel at interpolating {\em within the training data}, the challenge of generalizing to new scenes and objects from very sparse views persists. Specifically, modeling 3D humans from sparse views presents formidable hurdles due to the inherent complexity of human geometry, resulting in inaccurate reconstructions of geometry and textures. To tackle this challenge, this paper leverages recent advancements in Gaussian Splatting and introduces a new method to learn generalizable human Gaussians that allows photorealistic and accurate view-rendering of a new human subject from a limited set of sparse views in a feed-forward manner. A pivotal innovation of our approach involves reformulating the learning of 3D Gaussian parameters into a regression process defined on the 2D UV space of a human template, which allows leveraging the strong geometry prior and the advantages of 2D convolutions. In addition, a multi-scaffold is proposed to effectively represent the offset details. Our method outperforms recent methods on both within-dataset generalization as well as cross-dataset generalization settings.
format Preprint
id arxiv_https___arxiv_org_abs_2407_12777
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Generalizable Human Gaussians for Sparse View Synthesis
Kwon, Youngjoong
Fang, Baole
Lu, Yixing
Dong, Haoye
Zhang, Cheng
Carrasco, Francisco Vicente
Mosella-Montoro, Albert
Xu, Jianjin
Takagi, Shingo
Kim, Daeil
Prakash, Aayush
De la Torre, Fernando
Computer Vision and Pattern Recognition
Graphics
Recent progress in neural rendering has brought forth pioneering methods, such as NeRF and Gaussian Splatting, which revolutionize view rendering across various domains like AR/VR, gaming, and content creation. While these methods excel at interpolating {\em within the training data}, the challenge of generalizing to new scenes and objects from very sparse views persists. Specifically, modeling 3D humans from sparse views presents formidable hurdles due to the inherent complexity of human geometry, resulting in inaccurate reconstructions of geometry and textures. To tackle this challenge, this paper leverages recent advancements in Gaussian Splatting and introduces a new method to learn generalizable human Gaussians that allows photorealistic and accurate view-rendering of a new human subject from a limited set of sparse views in a feed-forward manner. A pivotal innovation of our approach involves reformulating the learning of 3D Gaussian parameters into a regression process defined on the 2D UV space of a human template, which allows leveraging the strong geometry prior and the advantages of 2D convolutions. In addition, a multi-scaffold is proposed to effectively represent the offset details. Our method outperforms recent methods on both within-dataset generalization as well as cross-dataset generalization settings.
title Generalizable Human Gaussians for Sparse View Synthesis
topic Computer Vision and Pattern Recognition
Graphics
url https://arxiv.org/abs/2407.12777