Results 21 to 30 of about 7,708 (206)
Multiscale structural complexity assessment of coral reefs using underwater photogrammetry. [PDF]
PLoS OneUnderstanding the structural complexity of coral reefs is essential for assessing their condition, biodiversity, and resilience. Traditional methods commonly use a rugosity index based on the chain method, which overlooks the underlying structure of coral reefs.
Barrera-Falcón E +2 more
europepmc +4 more sources
Airborne laser bathymetry for documentation of submerged archaeological sites in shallow water [PDF]
, 2015 Knowledge of underwater topography is essential to the understanding of the organisation and distribution of archaeological sites along and in water bodies.
Briese, Christian +6 more
core +7 more sources
COMPUTER VISION PHOTOGRAMMETRY FOR UNDERWATER ARCHAEOLOGICAL SITE RECORDING IN A LOW-VISIBILITY ENVIRONMENT [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015 Computer Vision Photogrammetry allows archaeologists to accurately record underwater sites in three dimensions using simple twodimensional picture or video sequences, automatically processed in dedicated software.
T. Van Damme
doaj +1 more source
Journal of Marine Science and Engineering, 2023 The series of technological advances that occurred over the past two decades allowed photogrammetry-based approaches to achieve their actual potential, giving birth to one of the most popular and applied procedures: structure from motion (SfM).
Torcuato Pulido Mantas +10 more
doaj +1 more source
HMS Hampshire 100:Survey Report [PDF]
, 2020 HMS HAMPSHIRE was a British 10,850-long tons pre-dreadnought Devonshire-class armoured cruiser launched on 24th September 1903, completed on 15th July 1905 and commissioned one month later.
Crofts, David +7 more
core +2 more sources
Remote Sensing, 2022 Structure-from-Motion (SfM) photogrammetry has become a popular solution for three-dimensional topographic data collection in geosciences and can be used for measuring submerged bed surfaces in shallow and clear water systems. However, the performance of
Chendi Zhang +3 more
doaj +1 more source
Automated classification of three-dimensional reconstructions of coral reefs using convolutional neural networks [PDF]
, 2020 © The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Hopkinson, B. M., King, A. C., Owen, D. P., Johnson-Roberson, M., Long, M. H., & Bhandarkar, S.
Bhandarkar, Suchendra M. +5 more
core +1 more source
Applied Sciences, 2021 In fields such as biology, archeology, and industry, underwater photogrammetry can be achieved using consumer-grade equipment. However, camera operations underwater differ considerably from those on land because underwater photogrammetry involves ...
Chun-Feng Chou +9 more
doaj +1 more source
ITERATIVE REFINEMENT FOR UNDERWATER 3D RECONSTRUCTION: APPLICATION TO DISPOSED UNDERWATER MUNITIONS IN THE BALTIC SEA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 With the rapid development and availability of underwater imaging technologies, underwater visual recording is widely used for a variety of tasks. However, quantitative imaging and photogrammetry in the underwater case has a lot of challenges (strong ...
Y. Song +3 more
doaj +1 more source
UNDERWATER PHOTOGRAMMETRY: POTENTIALITIES AND PROBLEMS RESULTS OF THE BENCHMARK SESSION OF THE 2019 SIFET CONGRESS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 Benchmark sessions are an efficient tool for sharing best practices as regards surveying, data processing and presentation of results within a scientific community.
M. Ballarin +4 more
doaj +1 more source