A review of underwater stereo-image measurement for marine biology and ecology applications

M Shortis, EHD Abdo - Oceanography and marine biology, 2016 - taylorfrancis.com
Over the last 40 years, underwater stereo-image measurement systems have employed
stereo-cameras and paired single cameras in a variety of congurations. Both still and movie …

[PDF][PDF] A review of the status and trends in underwater videometric measurement

M Shortis, E Harvey, J Seager - Invited paper, SPIE Conference, 2007 - researchgate.net
Over the last 40 years, underwater videometric measurement systems have employed
stereocameras and single cameras in a variety of configurations. Both still and movie …

A comparison of calibration methods and system configurations of underwater stereo‐video systems for applications in marine ecology

N Boutros, MR Shortis… - Limnology and …, 2015 - Wiley Online Library
Stereo‐video systems are used by marine ecologists to count and measure the size of
aquatic organisms. Most marine ecologists are not experts in underwater photogrammetry …

[PDF][PDF] Design and calibration of an underwater stereo-video system for the monitoring of marine fauna populations

MR Shortis, ES Harvey - International Archives of Photogrammetry …, 1998 - researchgate.net
Assessment of age and size structure of marine populations is often used to detect and
determine the effect of natural and anthropogenic factors, such as commercial fishing, upon …

Influence of range, angle of view, image resolution and image compression on underwater stereo-video measurements: high-definition and broadcast-resolution video …

ES Harvey, J Goetze, B McLaren… - Marine Technology …, 2010 - ingentaconnect.com
AbstractAn investigation of how increasing the distance and angle to objects of interest
affected the measurement accuracy and precision achievable with high-definition and …

Towards automating underwater measurement of fish length: a comparison of semi-automatic and manual stereo–video measurements

F Shafait, ES Harvey, MR Shortis, A Mian… - ICES Journal of …, 2017 - academic.oup.com
Underwater stereo–video systems are widely used for counting and measuring fish in
aquaculture, fisheries, and conservation management. Length measurements are generated …

[PDF][PDF] Calibration stability of an underwater stereo-video system: implications for measurement accuracy and precision

ES Harvey, MR Shortis - Marine Technology Society Journal, 1998 - Citeseer
Assessment of population structure is often used to detect and analyse the impact on marine
fauna of environmental factors or commercial fishing. A primary tool in the characterisation of …

[PDF][PDF] A system for stereo-video measurement of sub-tidal organisms

E Harvey, M Shortis - Marine Technology Society Journal, 1995 - Citeseer
The in situ estimation of the length of marine biological specimens or features by Scuba
divers is complicated by the magnifying properties of water and the underwater environment …

Using stereo-video for deep water benthic habitat surveys

MR Shortis, JW Seager, A Williams… - Marine Technology …, 2008 - ingentaconnect.com
Towed body systems of various configurations have been used for many years to map the
seabed. Prior to the last several years, single video camera systems were widely used to …

[HTML][HTML] Development of stereo camera methodologies to improve pelagic fish biomass estimates and inform ecosystem management in marine waters

JL Boldt, K Williams, CN Rooper, RH Towler… - Fisheries …, 2018 - Elsevier
To understand and manage marine ecosystems, long-term monitoring of fish biomass is
needed. A challenge in estimating fish biomass using sampling nets is varying catchability …