A Review of Holography in the Aquatic Sciences: In situ Characterization of Particles, Plankton, and Small Scale Biophysical Interactions

AR Nayak, E Malkiel, MN McFarland… - Frontiers in Marine …, 2021 - frontiersin.org
The characterization of particle and plankton populations, as well as microscale biophysical
interactions, is critical to several important research areas in oceanography and limnology. A …

Automated plankton classification from holographic imagery with deep convolutional neural networks

B Guo, L Nyman, AR Nayak, D Milmore… - Limnology and …, 2021 - Wiley Online Library
In situ digital inline holography is a technique which can be used to acquire high‐resolution
imagery of plankton and examine their spatial and temporal distributions within the water …

In situ imaging of a kleptoplastidic ciliate thin layer indicates traditional sampling underestimates oceanic mixotroph biomass

R Barua, L Nyman, B Guo, MD Johnson… - … Earth & Environment, 2024 - nature.com
Planktonic mixotrophs, including ciliates, are abundant, yet understudied, mediators of
primary and secondary production in aquatic food webs. Here, we report high-resolution in …

In situ digital holographic microscopy for rapid detection and monitoring of the harmful dinoflagellate, Karenia brevis

R Barua, D Sanborn, L Nyman, M McFarland, T Moore… - Harmful Algae, 2023 - Elsevier
Karenia brevis blooms, also known as red tide, are a recurring problem in the coastal Gulf of
Mexico. These blooms have the capacity to inflict substantial damage to human and animal …

Total water column analysis shows the importance of a single species in subsurface chlorophyll maximum thin layers in stratified waters

ML Barnett, AES Kemp, WAM Nimmo-Smith… - Frontiers in Marine …, 2022 - frontiersin.org
Marine phytoplankton form the base of marine food webs and are the driving force of the
marine carbon cycle, so understanding the dynamics of their blooms is critical. While near …

Digital holography for real-time non-invasive monitoring of larval fish at power plant intakes

D Sanborn, A Base, L Garavelli, R Barua… - Canadian Journal of …, 2023 - cdnsciencepub.com
Effective evaluation of technological and operational approaches to reduce entrainment of
marine organisms at cooling water intake structures (CWIS) requires accurate organism …

Using digital holography to characterize thin layers and harmful algal blooms in aquatic environments

AR Nayak, MN McFarland, MS Twardowski… - … Holography and Three …, 2019 - opg.optica.org
Digital holography was used to characterize particle/plankton distributions, biophysical
interactions and 'patchiness' phenomena including 'thin layers' and harmful algal blooms in …

[PDF][PDF] Classification of Microplanktons in an Imbalanced Digital Holographic Image Dataset with Deep Network using Channel Attention

A Shrihari, G PRITHWIJIT, D RISHIKESH - 2024 - preprints.opticaopen.org
Classifying microplanktons in digital holographic images is challenging due to multitude of
factors. For instance, shifts in viewpoint can alter how microplanktons are perceived, while …

AI Computation of L1-Norm-Error Principal Components With Applications to Training Dataset Curation and Detection of Change

K Varma - 2024 - search.proquest.com
The aim of this dissertation is to achieve a thorough understanding and develop an
algorithmic framework for a crucial aspect of autonomous and artificial intelligence (AI) …

Autofocus criteria applications in holograms of marine plankton: laboratory and field observations in southeastern Brazil and the Gulf of Mexico

GM Vega - 2024 - teses.usp.br
In this thesis, fundamental concepts of holographic reconstruction are applied to enhance
the imaging process of marine plankton. Digital holography is relevant in this context as it …