Seeing through Wavy Water–Air Interface: A Restoration Model for Instantaneous Images Distorted by Surface Waves

Imaging through a wavy water–air interface is challenging since light rays are bent by unknown amounts, leading to complex geometric distortions. Considering the restoration of instantaneous distorted images, this paper proposes an image recovery model via structured light projection. The algorithm...

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Bibliographic Details
Published inFuture internet Vol. 14; no. 8; p. 236
Main Authors Jian, Bijian, Ma, Chunbo, Zhu, Dejian, Sun, Yixiao, Ao, Jun
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.08.2022
Subjects
Algorithms
Cameras
Image reconstruction
image restoration
Internet
Light
Methods
Ray tracing
Restoration
reverse ray tracing
Seawater
structured light
Surface waves
water–air imaging
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Summary:Imaging through a wavy water–air interface is challenging since light rays are bent by unknown amounts, leading to complex geometric distortions. Considering the restoration of instantaneous distorted images, this paper proposes an image recovery model via structured light projection. The algorithm is composed of two separate parts. In the first part, an algorithm for the determination of the instantaneous shape of the water surface via structured light projection is developed. Then, we synchronously recover the distorted airborne scene image through reverse ray tracing in the second part. The experimental results show that, compared with the state-of-the-art methods, the proposed method not only can overcome the influence of changes in natural illumination conditions for WAI reconstruction, but also can significantly reduce the distortion and achieve better performance.
ISSN:1999-5903
1999-5903
DOI:10.3390/fi14080236