Nerfrac: Neural radiance fields through refractive surface

Y Zhan, S Nobuhara, K Nishino… - Proceedings of the …, 2023 - openaccess.thecvf.com
Abstract Neural Radiance Fields (NeRF) is a popular neural expression for novel view
synthesis. By querying spatial points and view directions, a multilayer perceptron (MLP) can …

3Deflicker from motion

Y Swirski, YY Schechner - IEEE International Conference on …, 2013 - ieeexplore.ieee.org
Spatio-temporal irradiance variations are created by some structured light setups. They also
occur naturally underwater, where they are termed flicker. Underwater, visibility is also …

In-the-wild single camera 3D reconstruction through moving water surfaces

J **ong, W Heidrich - Proceedings of the IEEE/CVF …, 2021 - openaccess.thecvf.com
We present a method for reconstructing the 3D shape of underwater environments from a
single, stationary camera placed above the water. We propose a novel differentiable …

Recovering transparent shape from time-of-flight distortion

K Tanaka, Y Mukaigawa, H Kubo… - Proceedings of the …, 2016 - openaccess.thecvf.com
This paper presents a method for recovering shape and normal of a transparent object from
a single viewpoint using a Time-of-Flight (ToF) camera. Our method is built upon the fact that …

Simultaneous 3D reconstruction for water surface and underwater scene

Y Qian, Y Zheng, M Gong… - Proceedings of the …, 2018 - openaccess.thecvf.com
This paper presents the first approach for simultaneously recovering the 3D shape of both
the wavy water surface and the moving underwater scene. A portable camera array system …

Refraction wiggles for measuring fluid depth and velocity from video

T Xue, M Rubinstein, N Wadhwa, A Levin… - Computer Vision–ECCV …, 2014 - Springer
We present principled algorithms for measuring the velocity and 3D location of refractive
fluids, such as hot air or gas, from natural videos with textured backgrounds. Our main …

Learning to see through turbulent water

Z Li, Z Murez, D Kriegman… - 2018 IEEE Winter …, 2018 - ieeexplore.ieee.org
Imaging through dynamic refractive media, such as looking into turbulent water, or through
hot air, is challenging since light rays are bent by unknown amounts leading to complex …

[Retracted] Application of Data Fusion and Image Video Teaching Mode in Physical Education Course Teaching and Evaluation of Teaching Effect

W Zou, Y Li, X Shan, X Wu - Security and Communication …, 2022 - Wiley Online Library
The technology and functions of data fusion and image teaching are constantly improving
with the development of society and are gradually produced in life in order to adapt to the …

[PDF][PDF] A pixel-wise varifocal camera model for efficient forward projection and linear extrinsic calibration of underwater cameras with flat housings

R Kawahara, S Nobuhara… - 2013 IEEE International …, 2013 - openaccess.thecvf.com
This paper is aimed at presenting a new virtual camera model which can efficiently model
refraction through Àat housings in underwater photography. The key idea is to employ a …

Clouds in the cloud

D Veikherman, A Aides, YY Schechner… - Computer Vision--ACCV …, 2015 - Springer
Light-field imaging can be scaled up to a very large area, to map the Earth's atmosphere in
3D. Multiview spaceborne instruments suffer low spatio-temporal-angular resolution, and …