Results 11 to 20 of about 480,055 (301)
, 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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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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Signal-to-noise ratio (SNR) evaluation.
, 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
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
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.
SHEN Xigang, LIN Chengxiang, PENG Weijun, GU Yajia
doaj +3 more sources
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
The Application of Contrast-Enhanced 3D-STIR-VISTA MR Imaging of the Brachial Plexus
Journal of the Belgian Society of Radiology, 2022 Objective: To introduce contrast-enhanced 3D-STIR-VISTA sequence that would improve the image quality for the brachial plexus imaging and enhance the contrast between the brachial plexus and surrounding tissues.
Dingsheng Han +3 more
doaj +1 more source
Noise and Health, 2016 Introduction: Noise is considered as the most common cause of harmful physical effects in the workplace. A sound that is generated from within the inner ear is known as an otoacoustic emission (OAE).
Parvin Nassiri +5 more
doaj +1 more source
Graphene Nanogrids FET Immunosensor: Signal to Noise Ratio Enhancement
Sensors, 2016 Recently, a reproducible and scalable chemical method for fabrication of smooth graphene nanogrids has been reported which addresses the challenges of graphene nanoribbons (GNR).
Jayeeta Basu, Chirasree RoyChaudhuri
doaj +1 more source
Signal to Noise Ratio of a Coded Slit Hyperspectral Sensor
Signals, 2022 In recent years, a wide range of hyperspectral imaging systems using coded apertures have been proposed. Many implement compressive sensing to achieve faster acquisition of a hyperspectral data cube, but it is also potentially beneficial to use coded ...
Jonathan Piper +2 more
doaj +1 more source