Underwater mapping 1980 - 2021
Bashar Elnashef, Sagi Filin
Date of publication: 2020
While accuracy, detail, and limited-time on-site make
photogrammetry a valuable means for underwater
mapping, establishing reference control networks in
such settings is frequently difficult. In that respect, using
the coplanarity constraint becomes a practical solution
as it requires neither knowledge of object space
coordinates nor setting a reference control network.
Nevertheless, imaging in such domains is subjected to
non-linear and depth-dependent distortions caused by
refractive media that alter the standard single viewpoint
geometry. Accordingly, the coplanarity relation, as
formulated for the in-air case, does not hold in such an
environment, and methods proposed thus far for
geometrical modeling of its effect require knowledge of
object-space quantities. In this paper, the authors
propose a geometrically-driven approach that fulfills the
coplanarity condition and requires no knowledge of
object space data.
Bohan Liu, Zhaojun Liu, Shaojie Men, Yongfu Li,
Zhongjun Ding, Jiahao He, and Zhigang Zhao.
Date of publication: 2020
This paper discusses the concepts of underwater
hyperspectral imaging (UHI) technology, covering
imaging systems, and the correction methods of
eliminating the water column’s influence. The current
applications of UHI, such as deep-sea mineral
exploration, benthic habitat mapping, and underwater
archaeology, are highlighted to show the potential of
this technology. This review provides an introduction
and overview for those working in the field and offers
a reference for those searching for literature on UHI
Tom W. Bell, Nick J. Nidzieko, David A. Siegel, Robert J.
Miller, Kyle C. Cavanaugh, Norman B. Nelson, Daniel C.
Reed, Dmitry Fedorov, Christopher Moran, Jordan N.
Snyder, Katherine C. Cavanaugh, Christie E. Yorke, and
This document evaluates the efficacy of remote
sensing from satellites and aerial and underwater
autonomous vehicles as potential monitoring
platforms for offshore kelp aquaculture farms.
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Authors: Yuliang Li, Mingliang Chen, Yuliang qi,
Jinquan qi, Chenjin Deng, Longkun Du,
Zunwang Bo, Chang Han, Zhihua Mao, Yan
He, Xuehui Shao, Shensheng Han
Underwater ghost imaging is a technique that involves
the use of light to capture images of objects in
underwater environments. This paper discusses a
theoretical and experimental study of underwater
ghost imaging is carried out by combining the
description of underwater optical field transmission
with the inherent optical parameters of the water