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SiLVR: scalable Lidar-visual reconstruction with neural radiance fields for robotic inspection

Abstract:
We present a neural-field-based large-scale reconstruction system that fuses lidar and vision data to generate high-quality reconstructions that are geometrically accurate and capture photo-realistic textures. This system adapts the state-of-the-art neural radiance field (NeRF) representation to also incorporate lidar data which adds strong geometric constraints on the depth and surface normals. We exploit the trajectory from a real-time lidar SLAM system to bootstrap a Structure-from-Motion (SfM) procedure to both significantly reduce the computation time and to provide metric scale which is crucial for lidar depth loss. We use submapping to scale the system to large-scale environments captured over long trajectories. We demonstrate the reconstruction system with data from a multi-camera, lidar sensor suite onboard a legged robot, hand-held while scanning building scenes for 600 metres, and onboard an aerial robot surveying a multi-storey mock disaster site-building. Website: https://ori-drs.github.io/projects/silvr/
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1109/ICRA57147.2024.10611278

Authors

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Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Oxford college:
Hertford College
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Role:
Author


More from this funder
Funder identifier:
https://ror.org/00k4n6c32
Grant:
101070405
Programme:
Horizon Europe project Digiforest
More from this funder
Funder identifier:
https://ror.org/001aqnf71
Grant:
10037847


Publisher:
IEEE
Host title:
2024 IEEE International Conference on Robotics and Automation (ICRA)
Pages:
17983-17989
Publication date:
2024-08-08
Acceptance date:
2024-01-29
Event title:
2024 IEEE International Conference on Robotics and Automation (ICRA 2024)
Event location:
Yokohama, Japan
Event website:
https://2024.ieee-icra.org/
Event start date:
2024-05-13
Event end date:
2024-05-17
DOI:
EISBN:
9798350384574
ISBN:
9798350384581


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