Výsledky vyhledávání - "Ross Marchant"

Akademický článek

Environmental Controls of Size Distribution of Modern Planktonic Foraminifera in the Tropical Indian Ocean

Autor: Michael B. Adebayo, Clara T. Bolton, Ross Marchant, Franck Bassinot, Sandrine Conrod, Thibault deGaridel‐Thoron

Publikováno v: Geochemistry, Geophysics, Geosystems, Vol 24, Iss 4, Pp n/a-n/a (2023)

Abstract Paleoceanographic studies often rely on abundance changes in microfossil species, with little consideration for characteristics such as organism size, which may also be related to environmental changes. Using a tropical Indian Ocean (TIO) co

Externí odkaz: https://doaj.org/article/6bc734eab0b34ecf80f1b7c541d923a8

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Point Label Aware Superpixels for Multi-Species Segmentation of Underwater Imagery

Autor: Scarlett Raine, Ross Marchant, Brano Kusy, Frederic Maire, Tobias Fischer

Publikováno v: IEEE Robotics and Automation Letters. 7:8291-8298

Monitoring coral reefs using underwater vehicles increases the range of marine surveys and availability of historical ecological data by collecting significant quantities of images. Analysis of this imagery can be automated using a model trained to p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3edc26d923bd237e9e84b5e61b6c852
https://doi.org/10.1109/lra.2022.3187836

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A Real-time Edge-AI System for Reef Surveys

Autor: Yang Li, Jiajun Liu, Brano Kusy, Ross Marchant, Brendan Do, Torsten Merz, Joey Crosswell, Andy Steven, Lachlan Tychsen-Smith, David Ahmedt-Aristizabal, Jeremy Oorloff, Peyman Moghadam, Russ Babcock, Megha Malpani, Ard Oerlemans

Crown-of-Thorn Starfish (COTS) outbreaks are a major cause of coral loss on the Great Barrier Reef (GBR) and substantial surveillance and control programs are ongoing to manage COTS populations to ecologically sustainable levels. In this paper, we pr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95f4a4907222f8d7e8716b31f051d7a0
http://arxiv.org/abs/2208.00598

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Automated analysis of foraminifera fossil records by image classification using a convolutional neural network

Autor: Adnya Pratiwi, Martin Tetard, Ross Marchant, Thibault de Garidel-Thoron, Michael Babatunde Adebayo

Publikováno v: Journal of Micropalaeontology, Vol 39, Pp 183-202 (2020)
Journal Of Micropalaeontology (0262-821X) (Copernicus GmbH), 2020-10, Vol. 39, N. 2, P. 183-202
Journal of Micropalaeontology
Journal of Micropalaeontology, 2020, 39 (2), pp.183-202. ⟨10.5194/jm-39-183-2020⟩
Journal of Micropalaeontology, Geological Society, 2020, 39 (2), pp.183-202. ⟨10.5194/jm-39-183-2020⟩

Manual identification of foraminiferal morphospecies or morphotypes under stereo microscopes is time consuming for micropalaeontologists and not possible for nonspecialists. Therefore, a long-term goal has been to automate this process to improve its

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b65a68b43531b286116080f60a2c7a00
https://jm.copernicus.org/articles/39/183/2020/jm-39-183-2020.pdf

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Technical note: A new automated radiolarian image acquisition, stacking, processing, segmentation and identification workflow

Autor: Luc Beaufort, Martin Tetard, Thibault de Garidel-Thoron, Y. Gally, Giuseppe Cortese, Ross Marchant

Publikováno v: Climate of the Past
Climate of the Past, European Geosciences Union (EGU), 2020, 16, pp.2415-2429. ⟨10.5194/cp-16-2415-2020⟩
Climate of the Past, 2020, 16, pp.2415-2429. ⟨10.5194/cp-16-2415-2020⟩
Climate of the Past, Vol 16, Pp 2415-2429 (2020)

Identification of microfossils is usually done by expert taxonomists and requires time and a significant amount of systematic knowledge developed over many years. These studies require manual identification of numerous specimens in many samples under

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f82c6c42794623b875e234db7e14d2f
https://hal.archives-ouvertes.fr/hal-03038635

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A new automated radiolarian image acquisition, stacking, processing, segmentation, and identification workflow

Autor: Ross Marchant, Y. Gally, Giuseppe Cortese, Martin Tetard, Luc Beaufort, Thibault de Garidel-Thoron

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c54ef593173b7a07ec3a28923d13d236
https://cp.copernicus.org/preprints/cp-2020-76/

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Automated recognition and picking of foraminifera using the MiSo (microfossil sorter) prototype

Autor: Michael Babatunde Adebayo, Martin Tetard, Thibault de Garidel-Thoron, Ross Marchant, Y. Gally

Publikováno v: European Geophysical Union General Assembly 2020
European Geophysical Union General Assembly 2020, May 2020, Vienne, Austria. ⟨10.5194/egusphere-egu2020-18067⟩

Recent progresses in image processing, and image recognition have paved the way for automated procedures to classify natural objects such as foraminifera. Foraminifera are among the most useful tracers in biostratigraphy and paleoceanography. Yet, th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be313b443b33983c5f3d9f77850520ad
https://hal.science/hal-02998019

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A new automated radiolarian image acquisition, processing and identification workflow

Autor: Thibault de Garidel-Thoron, Y. Gally, Luc Beaufort, Martin Tetard, Ross Marchant

Identification of microfossils is usually done by taxonomist experts and requires significant systematic knowledge and time, as about 300 specimens per sample are commonly identified for statistically reliable studies. Radiolaria are no exception, an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cffdbf43f24e220c3a5f74676daf7862
https://doi.org/10.5194/egusphere-egu2020-16034

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Automated recognition by multiple convolutional neural networks of modern, fossil, intact and damaged pollen grains

Autor: Luc Beaufort, Thibault de Garidel-Thoron, Doris Barboni, Benjamin Bourel, Ross Marchant, Y. Gally, Martin Tetard

Publikováno v: Computers & Geosciences
Computers & Geosciences, 2020, 140, pp.104498. ⟨10.1016/j.cageo.2020.104498⟩
Computers & Geosciences, Elsevier, 2020, 140, pp.104498. ⟨10.1016/j.cageo.2020.104498⟩

International audience; Pollen grains are valuable paleoclimate and paleovegetation proxies which require extensive knowledge of morphotypes and long acquisition time under the microscope. The abundance of damaged, folded, and broken pollen grains in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::406870fb48c601ed089bf37b8abf5bc4
https://hal-insu.archives-ouvertes.fr/insu-02953384

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Two new free-access dry splitter designs (1/2 to 1/32 aliquots) for sediment fractionation

Autor: Martin Tetard, Ross Marchant

Publikováno v: Marine Micropaleontology
Marine Micropaleontology, 2020, 154, pp.101800. ⟨10.1016/j.marmicro.2019.101800⟩
Marine Micropaleontology, Elsevier, 2020, 154, pp.101800. ⟨10.1016/j.marmicro.2019.101800⟩

This study presents two new dry sediment splitters for use in sample fractionation for micropalaeontological studies, designed so that the aliquot of interest can be recovered in a single operation. The first model (adjustable) provides a single aliq

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24da8f5ff1160f7f7064eaceaaf8b10f
https://hal.science/hal-03163912/file/S0377839819300908.pdf

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