Results 31 to 40 of about 2,030,943 (157)

Uncertainty Introduced by Darkening Agents in the Lunar Regolith: An Unmixing Perspective

Remote Sensing, 2021
On the Moon, in the near infrared wavelength range, spectral diagnostic features such as the 1-μm and 2-μm absorption bands can be used to estimate abundances of the constituent minerals.
Marcel Hess, Thorsten Wilhelm, Christian Wöhler, Kay Wohlfarth   +3 more
doaj   +1 more source

Algorithms for Cytoplasm Segmentation of Fluorescence Labelled Cells

Analytical Cellular Pathology, 2002
Automatic cell segmentation has various applications in cytometry, and while the nucleus is often very distinct and easy to identify, the cytoplasm provides a lot more challenge.
Carolina Wählby, Joakim Lindblad, Mikael Vondrus, Ewert Bengtsson, Lennart Björkesten   +4 more
doaj   +1 more source

Ground-Based Hyperspectral Image Surveillance System for Explosive Detection: Methods, Experiments, and Comparisons

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Explosive detection is crucial for public safety and confidence. Among various solutions for this purpose, hyperspectral imaging differs from its alternatives with its detection capability from standoff distances. However, the state-of-the-art for such a
Mustafa Kutuk, Izlen Geneci, Okan Bilge Ozdemir, Alper Koz, Okan Esenturk, Yasemin Yardimci Cetin, A. Aydin Alatan   +6 more
doaj   +1 more source

Remote Sensing Upside Down: Exploring the Potential of Ground-Based Multispectral Cameras for Tree Crown Monitoring [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Recent advancements in remote sensing have enabled increasingly detailed analysis of forest canopies using a range of platforms, from satellites to ground-based systems.
M. Goebel, L. Wolf, F. Packwitz, D. Iwaszczuk   +3 more
doaj   +1 more source

A New Method for Segmentation of Colour Images Applied to Immunohistochemically Stained Cell Nuclei

Analytical Cellular Pathology, 1997
A new method for segmenting images of immunohistochemically stained cell nuclei is presented. The aim is to distinguish between cell nuclei with a positive staining reaction and other cell nuclei, and to make it possible to quantify the reaction.
Petter Ranefall, Lars Egevad, Bo Nordin, Ewert Bengtsson   +3 more
doaj   +1 more source

Causality matters in medical imaging

Nature Communications, 2020
Scarcity of high-quality annotated data and mismatch between the development dataset and the target environment are two of the main challenges in developing predictive tools from medical imaging. In this Perspective, the authors show how causal reasoning
Daniel C. Castro, Ian Walker, Ben Glocker   +2 more
doaj   +1 more source

A Comparative Study of Deep Learning Classification Methods on a Small Environmental Microorganism Image Dataset (EMDS-6): From Convolutional Neural Networks to Visual Transformers

Frontiers in Microbiology, 2022
In recent years, deep learning has made brilliant achievements in Environmental Microorganism (EM) image classification. However, image classification of small EM datasets has still not obtained good research results. Therefore, researchers need to spend
Peng Zhao, Chen Li, Md Mamunur Rahaman, Hao Xu, Hechen Yang, Hongzan Sun, Tao Jiang, Marcin Grzegorzek   +7 more
doaj   +1 more source

Integrating Crowd-sourced Annotations of Tree Crowns using Markov Random Field and Multispectral Information [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Benefiting from advancements in algorithms and computing capabilities, supervised deep learning models offer significant advantages in accurately mapping individual tree canopy cover, which is a fundamental component of forestry management.
Q. Mei, J. Steier, D. Iwaszczuk
doaj   +1 more source

Development of a Super-Resolution Scheme for Pediatric Magnetic Resonance Brain Imaging Through Convolutional Neural Networks

Frontiers in Neuroscience, 2022
Pediatric medical imaging represents a real challenge for physicians, as children who are patients often move during the examination, and it causes the appearance of different artifacts in the images.
Juan Manuel Molina-Maza, Adrian Galiana-Bordera, Mar Jimenez, Norberto Malpica, Angel Torrado-Carvajal   +4 more
doaj   +1 more source

REFINEMENT OF STEREO IMAGE ANALYSIS USING PHOTOMETRIC SHAPE RECOVERY AS AN ALTERNATIVE TO BUNDLE ADJUSTMENT [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Topographic mapping, e.g. the generation of Digital Elevation Models (DEM), is of general interest to the remote sensing community and scientific research. Commonly, photogrammetric methods, e.g.
A. Grumpe, C. Schröer, S. Kauffmann, T. Fricke, C. Wöhler, U. Mall   +5 more
doaj   +1 more source