Results 71 to 80 of about 91,646,978 (197)
LSB TECHNIQUE FOR IMAGE AND TEXT HIDING USING THE RED AND GREEN CHANNELS [PDF]
Journal of Engineering Science and Technology, 2018 Recently, Information hiding has an important role to protect data via the Internet from malicious attack, Steganography - which is the art of hiding data- uses a cover file to hide data by utilizing different schemas to prevent it from being detected ...
SAWSAN M. NUSIR +4 more
doaj
Application of energy difference spectrum of singular value in signal noise reductio
Gong-kuang zidonghua, 2014 In view of problem that the order of effective rank of matrix reconstruction is difficult to determine in singular value decomposition for noise reduction, a novel signal noise reduction method based on energy difference spectrum of singular value was ...
ZHANG Wenbi
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, 2018 Changes in background noise (SD), signal intensity (SI) and signal-to-noise ratio (SNR) according to the use of QuietSuite.
Philipp Fuelkell (5920535) +7 more
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PhotonicsThis paper presents a new high-speed RGB image transmission system over Free-Space Optics (FSO) channel employing Optical Code Division Multiple Access (OCDMA) with Permutation Vector (PV) codes.
Somia A. Abd El-Mottaleb +4 more
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On the definition of signal-to-noise ratio and contrast-to-noise ratio for fMRI data [PDF]
, 2013 Signal-to-noise ratio, the ratio between signal and noise, is a quantity that has been well established for MRI data but is still subject of ongoing debate and confusion when it comes to fMRI data.
Marijke Welvaert +6 more
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HVS-based imperceptibility measure of watermark in watermarked color image
Tongxin xuebao, 2008 Imperceptibility of embedded digital watermark reflects the fidelity of watermarked image. The masking of frequency, luminance, texture and color on human vision were analyzed.
YANG Hong-mei +3 more
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Optimizing the signal-to-noise ratio for direct-detection BOTDA [PDF]
The signal-to-noise ratio (SNR) of the measurement for direct-detection Brillouin optical time-domain analyzers is modelled and experimentally validated, with and without the use of optical pre-amplification.
Thévenaz, Luc +3 more
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Signal-to-noise ratio of modulated sources of ASE transmitted over dispersive fiber
, 1997 We investigate, both theoretically and experimentally, the signal-to-noise ratio (SNR) of modulated amplified spontaneous emission (ASE) transmitted over dispersive fiber. We observe two significant effects; firstly, the signal-to-excess-noise ratio (SNR
Pendock, G.J., Sampson, David
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Compressive Sampling Orthogonal Matching Pursuit Algorithm Based on Peak Signal to Noise Ratio
International Journal of Future Generation Communication and Networking, 2016 In order to improve signal reconstruction accuracy, a CoSaMP (Compressive Sampling Matching Pursuit) algorithm based on peak signal to noise ratio is proposed in allusion to the disadvantages of CoSaMP algorithm. Firstly, the discrete cosine wave transform is improved to initially estimate the signal sparseness; secondly, the optimum iteration number ...
openaire +1 more source
Discover Applied SciencesThe use of a light-weight deep learning Convolutional Neural Network (CNN) augmented with the power of Fuzzy Non-Sample Shearlet Transformation (FNSST) has successfully solved the problem of reducing noise and artifacts in Low-Dose Computed Tomography ...
Haewon Byeon +6 more
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