Results 1 to 10 of about 673,954 (118)

A new metric for the assessment of spatial resolution in satellite imagers

International Journal of Applied Earth Observations and Geoinformation, 2022
A three-criterion taxonomy of metrics to compute the spatial resolution of satellite imagers is presented and used to classify about thirty spatial resolution metrics found in the literature.
Alvaro Valenzuela, Karin Reinke, Simon Jones   +2 more
doaj   +3 more sources

Polarimetric imaging with high spatial resolution [PDF]

Scientific Reports
Despite its critical importance in many biomedical devices, the polarization of light is often neglected or considered as a problem to be contained. The reason is related to considerable challenges to measure it. In the present work, a simple motion-free
Anastasiia Pusenkova, Aram Bagramyan, Patrick Larochelle, Van Vladimir Galstian, Tigran Galstian   +4 more
doaj   +2 more sources

Spatial spectroscopy for high resolution imaging [PDF]

EPJ Web of Conferences, 2020
Quantum estimation theory provides bounds for the precision in the estimation of a set of parameters that characterize a system. Two questions naturally arise: Is any of these bounds tight?
Villegas Arturo, Torres Juan P.
doaj   +1 more source

Millimetric spatial resolution time-expanded ϕ-OTDR

APL Photonics, 2023
Time-expanded phase-sensitive optical time-domain reflectometry is a distributed optical fiber sensing technology based on dual-frequency combs that allows for dynamic and high spatial resolution measurements while maintaining reduced detection ...
Miguel Soriano-Amat, Philippe Guay, Hugo F. Martins, Sonia Martin-Lopez, Miguel Gonzalez-Herraez, María R. Fernández-Ruiz, Jerome Genest   +6 more
doaj   +1 more source

Object-Based Land Cover Classification for ALOS Image Combining TM Spectral [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
Land cover classification for high spatial resolution remote sensing images becomes a challenging work. The high spatial resolution remote sensing images have more spatial information.
G. Wang, J. Liu, G. He
doaj   +1 more source

Spatial resolution of a preclinical PET tomograph

Brazilian Journal of Radiation Sciences, 2021
Positron emission tomography (PET) is an important molecular image modality and its application on preclinical research has increased during last decades.
Guilherme Cavalcante de Albuquerque Souza, Rodrigo Modesto Gadelha Gontijo, Juliana Batista da Silva, Marcelo Mamede, Andréa Vidal Ferreira   +4 more
doaj   +1 more source

Tradeoffs between UAS Spatial Resolution and Accuracy for Deep Learning Semantic Segmentation Applied to Wetland Vegetation Species Mapping

Remote Sensing, 2022
Recent advances in image classification of fine spatial resolution imagery from unoccupied aircraft systems (UASs) have allowed for mapping vegetation based on both multispectral reflectance and fine textural details.
Troy M. Saltiel, Philip E. Dennison, Michael J. Campbell, Tom R. Thompson, Keith R. Hambrecht   +4 more
doaj   +1 more source

Joint Spatial-spectral Resolution Enhancement of Multispectral Images with Spectral Matrix Factorization and Spatial Sparsity Constraints

Remote Sensing, 2020
This paper presents a joint spatial-spectral resolution enhancement technique to improve the resolution of multispectral images in the spatial and spectral domain simultaneously. Reconstructed hyperspectral images (HSIs) from an input multispectral image
Chen Yi, Yong-qiang Zhao, Jonathan Cheung-Wai Chan, Seong G. Kong   +3 more
doaj   +1 more source

Aerial image quality control - spatial resolution [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Standardized methods for assessing the spatial resolution of airborne photogrammetric systems are essential for ensuring consistent quality in aerial imaging.
I. Oveland, A. Prebensen Korsnes, E. Honkavaara, L. Markelin, A. C. Flatman, H. Meißner, H. Meißner   +6 more
doaj   +1 more source

2D perovskite-based high spatial resolution X-ray detectors

Scientific Reports, 2021
X-ray radiography is the most widely used imaging technique with applications encompassing medical and industrial imaging, homeland security, and materials research.
Amlan Datta, John Fiala, Shariar Motakef
doaj   +1 more source