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Underwater photogrammetry for close‐range 3D imaging of dry‐sensitive objects: The case study of cephalopod beaks [PDF]

open access: yesEcology and Evolution, 2021
Technical advances in 3D imaging have contributed to quantifying and understanding biological variability and complexity. However, small, dry‐sensitive objects are not easy to reconstruct using common and easily available techniques such as ...
Marjorie Roscian   +2 more
exaly   +3 more sources

Geometric and Optic Characterization of a Hemispherical Dome Port for Underwater Photogrammetry [PDF]

open access: yesSensors, 2016
The popularity of automatic photogrammetric techniques has promoted many experiments in underwater scenarios leading to quite impressive visual results, even by non-experts. Despite these achievements, a deep understanding of camera and lens behaviors as
Fabio Menna   +2 more
exaly   +6 more sources

On the Accuracy Potential in Underwater/Multimedia Photogrammetry [PDF]

open access: yesSensors, 2015
Underwater applications of photogrammetric measurement techniques usually need to deal with multimedia photogrammetry aspects, which are characterized by the necessity of handling optical rays that are refracted at interfaces between optical media with ...
Hans-Gerd Maas
exaly   +5 more sources

Underwater Cultural Heritage Documentation Using Photogrammetry

open access: yesJournal of Marine Science and Engineering
Underwater cultural heritage (UCH) is an irreplaceable resource with intrinsic value that requires preservation, documentation, and safeguarding. Documentation is fundamental to increasing UCH resilience, providing a basis for monitoring, conservation ...
Alessio Calantropio   +1 more
exaly   +4 more sources

Underwater Photogrammetry and Object Modeling: A Case Study of Xlendi Wreck in Malta [PDF]

open access: yesSensors, 2015
In this paper we present a photogrammetry-based approach for deep-sea underwater surveys conducted from a submarine and guided by knowledge-representation combined with a logical approach (ontology). Two major issues are discussed in this paper.
Pierre Drap   +2 more
exaly   +4 more sources

UNDERWATER CALIBRATION OF DOME PORT PRESSURE HOUSINGS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Underwater photogrammetry using consumer grade photographic equipment can be feasible for different applications, e.g. archaeology, biology, industrial inspections, etc.
E. Nocerino   +3 more
doaj   +4 more sources

Bridging Disciplines with Photogrammetry: A Coastal Exploration Approach for 3D Mapping and Underwater Positioning

open access: yesRemote Sensing
Conventional methodologies often struggle in accurately positioning underwater habitats and elucidating the complex interactions between terrestrial and aquatic environments.
Ilaria Ferrando   +2 more
exaly   +3 more sources

Robust marker detection and identification using deep learning in underwater images for close range photogrammetry

open access: yesISPRS Open Journal of Photogrammetry and Remote Sensing
The progressing industrialization of oceans mandates reliable, accurate and automatable subsea survey methods. Close-range photogrammetry is a promising discipline, which is frequently applied by archaeologists, fish-farmers, and the offshore energy ...
Jost Wittmann   +2 more
exaly   +3 more sources

Workshop on 3D mapping of habitats and biological communities with underwater photogrammetry [PDF]

open access: yesResearch Ideas and Outcomes, 2023
For the past decades, photogrammetry has been increasingly used for monitoring spatial arrangement or temporal dynamics of submerged man-made structures and natural systems.
Loïc Van Audenhaege   +10 more
doaj   +3 more sources

AN OPEN-SOURCE, DATA-LOGGING DEVICE FOR MARINE-BASED SURVEYS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Observation, monitoring, and understanding of the marine environment, particularly seafloor mapping, have gained global attention. Underwater photogrammetry is a valuable technique for creating accurate seafloor orthomosaics and digital elevation models (
A. Mufti   +4 more
doaj   +1 more source

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