Results 21 to 30 of about 2,512,732 (195)
Sensors, 2021 Due to the complex marine environment, side-scan sonar signals are unstable, resulting in random non-rigid distortion in side-scan sonar strip images. To reduce the influence of resolution difference of common areas on strip image mosaicking, we proposed
Ning Zhang +4 more
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Assessing resolution in super-resolution imaging
Methods, 2015 Resolution is a central concept in all imaging fields, and particularly in optical microscopy, but it can be easily misinterpreted. The mathematical definition of optical resolution was codified by Abbe, and practically defined by the Rayleigh Criterion in the late 19th century. The limit of conventional resolution was also achieved in this period, and
Demmerle, J +3 more
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Super resolution image reconstruction from low resolution aliased images
2008 IEEE 16th Signal Processing, Communication and Applications Conference, 2008 Super resolution(SR) algorithms reconstruct a higher resolution image from a set of low resolution images of a scene. Precise alignment of image set is the essential part of these algorithms. If the low resolution images are undersampled and have aliasing effects, performance of the registration algorithms will decrease.
Toyran, Metin, Kayran, Ahmet Hamdi
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Assessment of Chimpanzee Nest Detectability in Drone-Acquired Images
Drones, 2018 As with other species of great apes, chimpanzee numbers have declined over the past decades. Proper conservation of the remaining chimpanzees requires accurate and frequent data on their distribution and density.
Noémie Bonnin +5 more
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The Journal of Engineering, 2019 A novel frequency scanning-based direction-of-arrival (DOA) estimation scheme is proposed at terahertz (THz) band. The diffraction enhancement mechanism, focusing the superposition of the diffracted beam radiated from each element in one unit cell, is ...
Shichao Li +7 more
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Parallel super-resolution imaging [PDF]
Nature Methods, 2013 Massive parallelization of scanning-based super-resolution imaging allows fast imaging of large fields of view.
Yew, Elijah Y S +2 more
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Frontiers in Neuroscience, 2019 There is much controversy about the optimal trade-off between blood-oxygen-level-dependent (BOLD) sensitivity and spatial precision in experiments on brain’s topology properties using functional magnetic resonance imaging (fMRI).
Renaud Marquis +13 more
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Cascaded face super‐resolution with shape and identity priors
IET Image Processing, 2023 Despite impressive progress in face super‐resolution (SR), it is an open challenge to reconstruct a reliable SR face that preserves authentic facial characteristics.
Dan Zeng +6 more
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High-resolution anamorphic SPECT imaging [PDF]
2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSS/MIC), 2012 We have developed a gamma-ray imaging system that combines a high-resolution silicon detector with two sets of movable, half-keel-edged copper-tungsten blades configured as crossed slits. These apertures can be positioned independently between the object and detector, producing an anamorphic image in which the axial and transaxial magnifications are ...
Heather L, Durko +2 more
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High-resolution distributed ISAR imaging by OMP method
The Journal of Engineering, 2019 The distributed inverse synthetic aperture radar (ISAR) technique can form multiple virtual sensors and has the potential to increase the cross-range resolution by exploiting the multi-channel echoes.
Yuanyuan Li, Yaowen Fu, Wenpeng Zhang
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