# Underwater Stereo using Refraction-free Image Synthesized from Light Field Camera

arXiv: https://arxiv.org/abs/1905.09588 · HTML: https://mlsanity.com/paper/1905.09588/

## Key facts

- Cited by 1 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 23 May 2019.

## Built on by (most cited first, 1 of 1)

- [Light Field-Based Underwater 3D Reconstruction Via Angular Resampling](https://mlsanity.com/paper/2109.02116/) (2021)

## Abstract (arXiv)

There is a strong demand on capturing underwater scenes without distortions caused by refraction. Since a light field camera can capture several light rays at each point of an image plane from various directions, if geometrically correct rays are chosen, it is possible to synthesize a refraction-free image. In this paper, we propose a novel technique to efficiently select such rays to synthesize a refraction-free image from an underwater image captured by a light field camera. In addition, we propose a stereo technique to reconstruct 3D shapes using a pair of our refraction-free images, which are central projection. In the experiment, we captured several underwater scenes by two light field cameras, synthesized refraction free images and applied stereo technique to reconstruct 3D shapes. The results are compared with previous techniques which are based on approximation, showing the strength of our method.