Results 81 to 90 of about 2,561,650 (296)

Parallel Encryption of Noisy Images Based on Sequence Generator and Chaotic Measurement Matrix

open access: yesComplexity, 2020
With the rapid development of information technology in today’s society, the security of transmission and the storage capacity of hardware are increasingly required in the process of image transmission.
Jiayin Yu   +4 more
doaj   +1 more source

Hybrid Particle Filter Based Dynamic Compressed Sensing for Signal-Level Multitarget Tracking

open access: yesIEEE Access, 2020
We propose a novel algorithm, state propagation based dynamic compressed sensing (SP-DCS), that uses a target dynamic model in dynamic compressed sensing (DCS) to track a fixed number of targets.
Jing Liu   +5 more
doaj   +1 more source

Halton Sampling for Image Registration Based on Mutual Information

open access: yes, 2008
Mutual information is a widely used similarity measure for aligning multimodal medical images. At its core, it relies on the computation of a discrete joint histogram, which itself requires image samples for its estimation.
Michel Bierlaire   +6 more
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

Hanning-Windowed Compressive Sensing with Interpolation for Power Harmonic Measurement

open access: yesEngineered Science
To mitigate measurement errors caused by spectral leakage and the fence effect in power harmonic detection, while addressing the issues of excessive data volume and slow algorithm reconstruction in traditional methods, this paper proposes a Hanning ...
Chengbin Liang   +3 more
doaj   +1 more source

Compressed sensing image processing algorithm of underground coal mine

open access: yesGong-kuang zidonghua, 2016
In view of the problem that energy consumption of sensor nodes is fast and equipment life is cut caused by large amount of information transmission of wireless sensor network, a kind of compressed sensing image processing algorithm based on wavelet ...
YIN Zhu, HUANG Yourui, CHEN Zhenping
doaj   +1 more source

Random Filters for Compressive Sampling [PDF]

open access: yes2006 40th Annual Conference on Information Sciences and Systems, 2006
This paper discusses random filtering, a recently proposed method for directly acquiring a compressed version of a digital signal. The technique is based on convolution of the signal with a fixed FIR filter having random taps, followed by downsampling.
openaire   +2 more sources

Fast equality test for straight-line compressed strings [PDF]

open access: yes, 2011
The paper describes a simple and fast randomized test for equality of grammar-compressed strings. The thorough running time analysis is done by applying a logarithmic cost measure.
Schmidt-Schauß, Manfred   +1 more
core  

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Optimized sampling patterns for practical compressed MRI

open access: yes, 2009
The performance of compressed sensing (CS) algorithms is dependent on the sparsity level of the underlying signal, the type of sampling pattern used and the reconstruction method applied.
Batchelor, Philip, Usman, Muhammad
core   +2 more sources

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