Results 31 to 40 of about 2,185 (196)

Gigapixel imaging with a novel multi-camera array microscope

eLife, 2022
The dynamics of living organisms are organized across many spatial scales. However, current cost-effective imaging systems can measure only a subset of these scales at once.
Eric E Thomson, Mark Harfouche, Kanghyun Kim, Pavan C Konda, Catherine W Seitz, Colin Cooke, Shiqi Xu, Whitney S Jacobs, Robin Blazing, Yang Chen, Sunanda Sharma, Timothy W Dunn, Jaehee Park, Roarke W Horstmeyer, Eva A Naumann   +14 more
doaj   +1 more source

Improving deep learning-based segmentation of diatoms in gigapixel-sized virtual slides by object-based tile positioning and object integrity constraint

PLoS ONE, 2023
Diatoms represent one of the morphologically and taxonomically most diverse groups of microscopic eukaryotes. Light microscopy-based taxonomic identification and enumeration of frustules, the silica shells of these microalgae, is broadly used in aquatic ...
Michael Kloster, Andrea M. Burfeid-Castellanos, Daniel Langenkämper, Tim W. Nattkemper, Bánk Beszteri   +4 more
doaj   +2 more sources

Gigapixel macro photography of tree rings

, 2020
Two ultra-high resolution images of tree rings are available as TIFF files. Tree-ring specimens are Pseudotsuga macrocarpa from California and Quercus macrocarpa from Minnesota sampled in June 2016 and March 2019, respectively.
Crawford, Daniel J, McFadden, Colin H, Schwalen, Daniel, Trumper, Matthew L, Carlson, Kate E, Porter, Samantha T, Griffin, Daniel   +6 more
core   +1 more source

Accurate Gigapixel Crowd Counting by Iterative Zooming and Refinement [PDF]

, 2023
The increasing prevalence of gigapixel resolutions has presented new challenges for crowd counting. Such resolutions are far beyond the memory and computation limits of current GPUs, and available deep neural network architectures and training procedures
Zhang, Qi, Bakhtiarnia, Arian, Iosifidis, Alexandros   +2 more
core   +1 more source

Noble Metals Doping in Lead-Free Double Perovskite Single Crystals: Achieving Near-Infrared to X-ray Broadband Photodetection. [PDF]

Small Sci
This study examines the doping of Cs2AgBiBr6 double perovskite with noble metals (Au3+, Pd2+, and Ir3+). Significant redshifts in the absorption edge enable broadband photodetection from X‐rays to NIR, without abrupt changes in crystal structure. Au doping notably also enhances X‐ray sensitivity.
Valli D, Vanden Brande R, Herreman V, Li Q, Romolini G, Chen JJ, Shameem K M M, Van Hout B, Sun L, Zhao Q, Pradhan B, Hofkens J, Debroye E.   +12 more
europepmc   +2 more sources

A Gigapixel Computational Light-Field Camera [PDF]

, 2019
Light-field cameras allow the acquisition of both the spatial and angular components of the light. This has a wide range of applications from image refocusing to 3D reconstruction of a scene.
Thomas Gregory (3150075), Matthew P. Edgar (3985910), Graham M. Gibson (3972980), Paul-Antoine Moreau (3962984)   +3 more
core   +2 more sources

Automated gigapixel circumferential surface microscopy of the prostate [PDF]

Scientific Reports, 2020
AbstractPositive surgical margins, or cancer cells found at the boundary of an excised tumor mass, are a significant problem in the management of many cancers resulting in worsened patient outcomes. The problem is exacerbated in organ sites such as the prostate, where unnecessarily wide local excisions can result in significant deterioration of post ...
Luethy, Samuel, Tulman, David B., Brown, J. Quincy   +2 more
openaire   +2 more sources

Gigapixel multispectral microscopy

Optica, 2015
Understanding the complexity of cellular biology often requires capturing and processing an enormous amount of data. In high-content drug screens, each cell is labeled with several different fluorescent markers and frequently thousands to millions of cells need to be analyzed in order to characterize biology’s intrinsic variability.
Antony Orth, Monica Jo Tomaszewski, Richik N. Ghosh, Ethan Schonbrun   +3 more
openaire   +1 more source

Giga-pixel lensfree holographic microscopy and tomography using color image sensors. [PDF]

PLoS ONE, 2012
We report Giga-pixel lensfree holographic microscopy and tomography using color sensor-arrays such as CMOS imagers that exhibit Bayer color filter patterns.
Serhan O Isikman, Alon Greenbaum, Wei Luo, Ahmet F Coskun, Aydogan Ozcan   +4 more
doaj   +1 more source

Histo-fetch – On-the-fly processing of gigapixel whole slide images simplifies and speeds neural network training

Journal of Pathology Informatics, 2022
Background: Training convolutional neural networks using pathology whole slide images (WSIs) is traditionally prefaced by the extraction of a training dataset of image patches.
Brendon Lutnick, Leema Krishna Murali, Brandon Ginley, Avi Z Rosenberg, Pinaki Sarder   +4 more
doaj   +1 more source