Results 81 to 90 of about 13,144 (256)
Advanced Materials, EarlyView.ABSTRACT Microneedle arrays (MNAs) is a rapidly emerging technology with broad biomedical applications in drug delivery and biosensing. With sub‐millimeter dimensions and periodicity, MNAs possess geometries nearly ideal for biomedical devices operating within the terahertz (THz) spectral window.
Sang Hyun Lee +6 more
wiley +1 more source
Robust SAR Image Despeckling by Deep Learning From Near-Real Datasets
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingThe inherent speckle in synthetic aperture radar (SAR) images significantly affects their potential usefulness, and its effective suppression is a challenging and nontrivial task.
Jianjun Guan +4 more
doaj +1 more source
Penapisan Derau Gaussian, Speckle dan Salt&Pepper Pada Citra Warna
IJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2011 Quality of digital image can decrease becouse some noises. Noise can come from lower quality of image recorder, disturb when transmission data process and weather. Noise filtering can make image better becouse will filtering that noise from the image and
Ika Purwanti Ningrum +2 more
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Is Speckle Noise More Challenging to Mitigate Than Additive Noise?
IEEE Transactions on Information TheoryWe study the problem of estimating a function in the presence of both speckle and additive noises, commonly referred to as the de-speckling problem. Although additive noise has been thoroughly explored in nonparametric estimation, speckle noise, prevalent in applications such as synthetic aperture radar, ultrasound imaging, and digital holography, has ...
Reihaneh Malekian +2 more
openaire +2 more sources
Advanced Materials, EarlyView.Metasurface‐engineered NC‐TENG arrays integrate tactile pressure mapping, non‐contact gesture sensing, and acoustic signal readouts in one ultrathin module, and outperforms pristine PDMS in terms of electrical output and real‐time spatial mapping for next‐gen wearables.
Injamamul Arief +12 more
wiley +1 more source
FETAL ULTRASOUND IMAGE DENOISING USING CURVELET TRANSFORM [PDF]
ICTACT Journal on Image and Video Processing, 2015 The random speckle noise in the acquired fetal ultrasound images is caused by the interference of reflected ultrasound wave fronts. The presence of speckle noise will degrade the quality of the image and even hide image details, which in turn affect the ...
J. Nithya, M. Madheswaran
doaj
Semiconductor Physics, Quantum Electronics & Optoelectronics, 2018 Presented in this paper is the technique of formation of required laser intensity distribution on the target with a reduced speckle noise. The method is based on the use of modified Fourier hologram adapted to controlled phase modulators.
A.G. Derzhypolskyi +2 more
doaj +1 more source
All‐Optical Reconfigurable Physical Unclonable Function for Sustainable Security
Advanced Materials, EarlyView.An all‐optical reconfigurable physical unclonable function (PUF) is demonstrated using plasmonic coupling–induced sintering of optically trapped gold nanoparticles, where Brownian motion serves as a robust entropy source. The resulting optical PUF exhibits high encoding density, strong resistance to modeling attacks, and practical authentication ...
Jang‐Kyun Kwak +4 more
wiley +1 more source
Make It Less Complex: Autoencoder for Speckle Noise Removal-Application to Breast and Lung Ultrasound. [PDF]
J Imaging, 2023 Oliveira-Saraiva D +6 more
europepmc +1 more source
Advanced Materials, EarlyView.The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj +8 more
wiley +1 more source