EvGGS: A Collaborative Learning Framework for Event-based Generalizable Gaussian Splatting

Fuente: arXiv
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Autores principales: Wang, Jiaxu, He, Junhao, Zhang, Ziyi, Sun, Mingyuan, Sun, Jingkai, Xu, Renjing
Formato: Preprint
Publicado: 2024
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author Wang, Jiaxu
He, Junhao
Zhang, Ziyi
Sun, Mingyuan
Sun, Jingkai
Xu, Renjing
author_facet Wang, Jiaxu
He, Junhao
Zhang, Ziyi
Sun, Mingyuan
Sun, Jingkai
Xu, Renjing
contents Event cameras offer promising advantages such as high dynamic range and low latency, making them well-suited for challenging lighting conditions and fast-moving scenarios. However, reconstructing 3D scenes from raw event streams is difficult because event data is sparse and does not carry absolute color information. To release its potential in 3D reconstruction, we propose the first event-based generalizable 3D reconstruction framework, called EvGGS, which reconstructs scenes as 3D Gaussians from only event input in a feedforward manner and can generalize to unseen cases without any retraining. This framework includes a depth estimation module, an intensity reconstruction module, and a Gaussian regression module. These submodules connect in a cascading manner, and we collaboratively train them with a designed joint loss to make them mutually promote. To facilitate related studies, we build a novel event-based 3D dataset with various material objects and calibrated labels of grayscale images, depth maps, camera poses, and silhouettes. Experiments show models that have jointly trained significantly outperform those trained individually. Our approach performs better than all baselines in reconstruction quality, and depth/intensity predictions with satisfactory rendering speed.
format Preprint
id arxiv_https___arxiv_org_abs_2405_14959
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle EvGGS: A Collaborative Learning Framework for Event-based Generalizable Gaussian Splatting
Wang, Jiaxu
He, Junhao
Zhang, Ziyi
Sun, Mingyuan
Sun, Jingkai
Xu, Renjing
Computer Vision and Pattern Recognition
Artificial Intelligence
Event cameras offer promising advantages such as high dynamic range and low latency, making them well-suited for challenging lighting conditions and fast-moving scenarios. However, reconstructing 3D scenes from raw event streams is difficult because event data is sparse and does not carry absolute color information. To release its potential in 3D reconstruction, we propose the first event-based generalizable 3D reconstruction framework, called EvGGS, which reconstructs scenes as 3D Gaussians from only event input in a feedforward manner and can generalize to unseen cases without any retraining. This framework includes a depth estimation module, an intensity reconstruction module, and a Gaussian regression module. These submodules connect in a cascading manner, and we collaboratively train them with a designed joint loss to make them mutually promote. To facilitate related studies, we build a novel event-based 3D dataset with various material objects and calibrated labels of grayscale images, depth maps, camera poses, and silhouettes. Experiments show models that have jointly trained significantly outperform those trained individually. Our approach performs better than all baselines in reconstruction quality, and depth/intensity predictions with satisfactory rendering speed.
title EvGGS: A Collaborative Learning Framework for Event-based Generalizable Gaussian Splatting
topic Computer Vision and Pattern Recognition
Artificial Intelligence
url https://arxiv.org/abs/2405.14959