, 2022 MEG SNR was estimated at the source level. Parcellated, group-average SNR map is depicted across the cortex. The cross-modal correspondence R2 map (i.e., regional model fit) is then compared with the SNR map.
Golia Shafiei (3191169) +2 more
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Signal-to-noise ratio (SNR) evaluation. [PDF]
, 2022 Mean signal intensity was calculated by averaging the region of interest’s (ROI) pixels’ intensities (Gd-DOTA concentration 5.1 mM). Square ROIs were fitted into each of the contrast filled phantoms (1–6), circular ROIs were horizontally positioned in ...
Laura M. Schreiber (9659114) +9 more
core +1 more source
Signal-to-noise-ratio of the central bile ducts on T2 MRCP and T1 3D MRC. [PDF]
, 2018 Signal-to-noise-ratio of the central bile ducts on T2 MRCP and T1 3D MRC.
Marcus Richard Makowski (5721284) +7 more
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Signal-to-noise ratio (SNR±SD dB), excess attenuation (EA±SD dB) and tail-to-signal ratio (TSR±SD dB) for combined male and female song phrases in the forest, shrubs and along the stream. [PDF]
, 2022 Signal-to-noise ratio (SNR±SD dB), excess attenuation (EA±SD dB) and tail-to-signal ratio (TSR±SD dB) for combined male and female song phrases in the forest, shrubs and along the stream.
Tomasz S. Osiejuk (10287277) +3 more
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Matched subspace detection with hypothesis dependent noise power [PDF]
, 2008 We consider the problem of detecting a subspace signal in white Gaussian noise when the noise power may be different under the null hypothesis—where it is assumed to be known—and the alternative hypothesis.
Cédric Richard +8 more
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MACHINE LEARNING METHODS UTILIZING MAMMOGRAM IMAGE ENHANCEMENT OF BREAST CANCER IDENTIFICATION [PDF]
ICTACT Journal on Soft ComputingMedical image analysis is very essential for health care sectors with early identification of illness, advanced features as very effective diagnostics system.
V. Jeevitha, I. Laurence Aroquiaraj
doaj +1 more source
Signal-to-noise ratio is improved by combining tellurium channels. [PDF]
, 2019 (a) Combination of 125Te, 126Te, 128Te, and 130Te images. The signal and noise regions are defined arbitrarily based on knowledge of the tissue of interest. Single isotope images may have either low signal (e.g. 125Te) or high noise (e.g. 130Te).
Jay Bassan (7339763), Mark Nitz (208005)
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Partition optimization for a random process realization to estimate its expected value [PDF]
Serbian Journal of Electrical Engineering, 2017 The paper provides an analytical proof the optimal number of partitions of a non-stationary random process realization, which is necessary for estimating its expected value when using “the estimation reproduction” method for signal processing ...
Marchuk Vladimir +4 more
doaj +1 more source
Pitch-scaled estimation of simultaneous voiced and turbulence-noise components in speech [PDF]
, 2001 Almost all speech contains simultaneous contributions from more than one acoustic source within the speaker's vocal tract. In this paper, we propose a method -- the pitch-scaled harmonic filter (PSHF) -- which aims to separate the voiced and turbulence ...
Shadle, Christine H. +3 more
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A study on correlation between thyroid CT radiation dose, image quality and female body composition [PDF]
Zhongguo aizheng zazhiBackground and purpose: With the increasing use of medical imaging examinations, Computed tomography (CT) scans have become one of the primary sources of effective dose.
Xigang SHEN +3 more
doaj +2 more sources