Results 21 to 30 of about 83,836 (252)

Compressive Sampling with Multiple Bit Spread Spectrum-Based Data Hiding

open access: yesApplied Sciences, 2020
We propose a novel data hiding method in an audio host with a compressive sampling technique. An over-complete dictionary represents a group of watermarks.
Gelar Budiman   +2 more
doaj   +1 more source

Sampling Time Adaptive Single-Photon Compressive Imaging

open access: yesIEEE Photonics Journal, 2019
We propose a time-adaptive sampling method and demonstrate a sampling-time-adaptive single-photon compressive imaging system. In order to achieve self-adapting adjustment of sampling time, the theory of threshold of light intensity estimation accuracy is
Hui Wang   +4 more
doaj   +1 more source

A Light Field Sparse and Reconstruction Framework for Improving Rendering Quality

open access: yesIEEE Access, 2020
We present a sparse reconstruction light field (SRLF) framework using compressed sensing theory. Light field signals have sparsity in some specific phenomena, such as nonocclusions, smooth surfaces and texture uniformity.
Hong Zhang   +6 more
doaj   +1 more source

Compressive Sampling for Remote Control Systems [PDF]

open access: yes, 2012
In remote control, efficient compression or representation of control signals is essential to send them through rate-limited channels. For this purpose, we propose an approach of sparse control signal representation using the compressive sampling ...
Hayashi, Kazunori   +2 more
core   +4 more sources

A Novel Iterative Thresholding Algorithm Based on Plug-and-Play Priors for Compressive Sampling

open access: yesFuture Internet, 2017
We propose a novel fast iterative thresholding algorithm for image compressive sampling (CS) recovery using three existing denoisers—i.e., TV (total variation), wavelet, and BM3D (block-matching and 3D filtering) denoisers.
Lingjun Liu, Zhonghua Xie, Cui Yang
doaj   +1 more source

Parameter Estimation Algorithm of Frequency-Hopping Signal in Compressed Domain Based on Improved Atomic Dictionary

open access: yesSensors, 2023
This paper considers the problem of estimating the parameters of a frequency-hopping signal under non-cooperative conditions. To make the estimation of different parameters independently of each other, a compressed domain frequency-hopping signal ...
Weipeng Zhu   +3 more
doaj   +1 more source

Information-Theoretic Characterization and Undersampling Ratio Determination for Compressive Radar Imaging in a Simulated Environment

open access: yesEntropy, 2015
Assuming sparsity or compressibility of the underlying signals, compressed sensing or compressive sampling (CS) exploits the informational efficiency of under-sampled measurements for increased efficiency yet acceptable accuracy in information gathering,
Jingxiong Zhang   +3 more
doaj   +1 more source

Broadband Microwave Spectrum Sensing Based on Photonic RF Channelization and Compressive Sampling

open access: yesIEEE Photonics Journal, 2020
A novel approach to realize broadband microwave spectrum sensing based on photonic RF channelization and compressive sampling (CS) is proposed. The photonic RF channelization system is used to slice the input broadband signal into multiple sub-channel ...
Bo Yang   +5 more
doaj   +1 more source

Compressive Parameter Estimation for Sparse Translation-Invariant Signals Using Polar Interpolation [PDF]

open access: yes, 2015
We propose new compressive parameter estimation algorithms that make use of polar interpolation to improve the estimator precision. Our work extends previous approaches involving polar interpolation for compressive parameter estimation in two aspects: (i)
Duarte, Marco F.   +2 more
core   +3 more sources

Dynamic range analysis of one-bit compressive sampling with time-varying thresholds

open access: yesThe Journal of Engineering, 2019
From the point of view of statistical signal processing, the dynamic range for one-bit quantisers with time-varying thresholds is studied. Maximum tolerable amplitudes, minimum detectable amplitudes and dynamic ranges of this one-bit sampling approach ...
Xiaofeng Zhu, Liang Huang, Ziqian Wang
doaj   +1 more source

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