Results 81 to 90 of about 148,419 (252)

Comparison between Different Data Image Compression Techniques Applied on SAR Images

open access: yesIraqi Journal of Physics, 2008
In this paper, image compression technique is presented based on the Zonal transform method. The DCT, Walsh, and Hadamard transform techniques are also implements. These different transforms are applied on SAR images using Different block size.
Eanas Y. Al-Tae’e
doaj  

Multiple basic hypergeometric transformation formulas arising from the balanced duality transformation [PDF]

open access: yesarXiv, 2013
Some multiple hypergeometric transformation formulas arising from the balanced du- ality transformation formula are discussed through the symmetry. Derivations of some transformation formulas with different dimensions are given by taking certain limits of the balanced duality transformation.
arxiv  

Securing the Internet of Medical Things with ECG‐based PUF encryption

open access: yesIET Cyber-Physical Systems: Theory &Applications, Volume 9, Issue 2, Page 115-124, June 2024.
The IoT is revolutionizing healthcare leading to the Internet of Medical Things, but securing data poses novel additional challenges in this context. This paper explores the usage of ElectroCardioGram (ECG) as a source of randomness for Physical Unclonable Function (PUF).
Biagio Boi, Christian Esposito
wiley   +1 more source

The Fourier and Hilbert transforms under the Bargmann transform [PDF]

open access: yesarXiv, 2016
There is a canonical unitary transformation from $L^2(\R)$ onto the Fock space $F^2$, called the Bargmann transform. We study the action of the Bargmann transform on several classical integral operators on $L^2(\R)$, including the fractional Fourier transform, the fractional Hilbert transform, and the wavelet transform.
arxiv  

ASL lexicon and reporting recommendations: A consensus report from the ISMRM Open Science Initiative for Perfusion Imaging (OSIPI)

open access: yesMagnetic Resonance in Medicine, Volume 91, Issue 5, Page 1743-1760, May 2024.
Abstract The 2015 consensus statement published by the International Society for Magnetic Resonance in Medicine (ISMRM) Perfusion Study Group and the European Cooperation in Science and Technology ( COST) Action ASL in Dementia aimed to encourage the implementation of robust arterial spin labeling (ASL) perfusion MRI for clinical applications and ...
Yuriko Suzuki   +11 more
wiley   +1 more source

Identities for the Ln-transform, the L2n-transform and the P2n transform and their applications [PDF]

open access: yesarXiv, 2014
In the present paper, the authors introduce several new integral transforms including the Ln-transform, the L2n-transform and P2n-transform generalizations of the classical Laplace transform and the classical Stieltjes transform as respectively. It is shown that the second iterate of the L2n-transform is essentially the P2n-transform.
arxiv  

Vision Transformers in 2022: An Update on Tiny ImageNet [PDF]

open access: yesarXiv, 2022
The recent advances in image transformers have shown impressive results and have largely closed the gap between traditional CNN architectures. The standard procedure is to train on large datasets like ImageNet-21k and then finetune on ImageNet-1k. After finetuning, researches will often consider the transfer learning performance on smaller datasets ...
arxiv  

On the Performance of MMSE Channel Estimation in Massive MIMO Systems over Spatially Correlated Rician Fading Channels

open access: yesWireless Communications and Mobile Computing, Volume 2024, Issue 1, 2024.
Massive multiple‐input‐multiple‐output (M‐MIMO) offers remarkable advantages in terms of spectral, energy, and hardware efficiency for future wireless systems. However, its performance relies on the accuracy of channel state information (CSI) available at the transceivers. This makes channel estimation pivotal in the context of M‐MIMO systems.
Jorge F. Arellano   +5 more
wiley   +1 more source

A Method for Diagnosing Gearboxes of Means of Transport Using Multi-Stage Filtering and Entropy

open access: yesEntropy, 2019
The paper presents a method of processing vibration signals which was designed to detect damage to wheels of gearboxes for means of transport. This method uses entropy calculation, and multi-stage filtering calculated by means of digital filters and the ...
Tomasz Figlus
doaj   +1 more source

Analysis of Filtered Multicarrier Modulation Techniques Using Different Windows for 5G and Beyond Wireless Systems

open access: yesWireless Communications and Mobile Computing, Volume 2024, Issue 1, 2024.
In contemporary wireless communication systems, multicarrier modulation schemes have become widely adopted over single‐carrier techniques due to their improved capacity to address challenges posed by multipath fading channels, leading to enhanced spectral efficiency.
Sourav Debnath   +3 more
wiley   +1 more source

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