Improved Two-Dimensional Otsu Based on Firefly Optimization for Low Signal-to-Noise Ratio Images

2017 ◽  
pp. 611-617
Author(s):  
Li Li ◽  
Jianwei Liu ◽  
Mingxiang Ling ◽  
Yuanyuan Wang ◽  
Hongwei Xia
Keyword(s):  
Signal To Noise Ratio ◽  
Two Dimensional ◽  
Signal To Noise ◽  
Firefly Optimization ◽  
Noise Ratio

Signal-to-noise ratio and section thickness in two-dimensional versus three-dimensional Fourier transform MR imaging.

Radiology ◽  
1988 ◽  
Vol 166 (1) ◽  
pp. 266-270 ◽  
Author(s):  
J Carlson ◽  
L Crooks ◽  
D Ortendahl ◽  
D M Kramer ◽  
L Kaufman
Keyword(s):  
Fourier Transform ◽  
Mr Imaging ◽  
Signal To Noise Ratio ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Section Thickness ◽  
Signal To Noise ◽  
Noise Ratio

Signal-to-noise ratio enhancement of a Hadamard transform spectrometer using a two-dimensional slit-array

2017 ◽  
Vol 56 (25) ◽  
pp. 7188 ◽  
Author(s):  
Mingbo Chi ◽  
Yihui Wu ◽  
Fang Qian ◽  
Peng Hao ◽  
Wenchao Zhou ◽  
...  
Keyword(s):  
Signal To Noise Ratio ◽  
Hadamard Transform ◽  
Two Dimensional ◽  
Signal To Noise ◽  
Noise Ratio

scholarly journals Multiparametric approach to the assessment of muon tomographic results for the inspection of a full-scale container

2021 ◽  
Vol 136 (1) ◽  
Author(s):  
F. Riggi ◽  
M. Bandieramonte ◽  
U. Becciani ◽  
D. L. Bonanno ◽  
G. Bonanno ◽  
...  
Keyword(s):  
Signal To Noise Ratio ◽  
Single Scattering ◽  
Full Scale ◽  
Experimental Results ◽  
Two Dimensional ◽  
Signal To Noise ◽  
Scattering Angle ◽  
Multiparametric Analysis ◽  
Noise Ratio ◽  
Cargo Containers

AbstractExperimental results from a dataset collected with a full-scale muon tomograph for the inspection of cargo containers were studied in a single scattering scenario with a multiparametric analysis based on the method of the Point Of Closest Approach (Poca). To search for high-Z materials, a 4 $$\hbox {dm}^3$$ dm 3 Pb block was positioned inside the volume to be inspected, in order to quantitatively investigate the appearance of the Poca signal. Signal-to-noise ratio and significance of the Poca signal were investigated by means of mono-dimensional spectra of the Poca components, for different values of the scattering angle between the incoming and outgoing muon tracks and with different angle-dependent weights. A systematic scan of two-dimensional maps was also carried out, as a strategy to search for possible enhancements to the Poca signal. A comparison was also done between the results obtained from the two half-volumes, one containing the Pb block and one left empty, to take into account the response of the detector and some aspects of the Poca strategy.

A triple-drain MOSFET magnetic-field sensor

1985 ◽  
Vol 63 (6) ◽  
pp. 695-698 ◽  
Author(s):  
A. Nathan ◽  
A. M. J. Huiser ◽  
H. P. Baltes ◽  
H. G. Schmidt-Weinmar
Keyword(s):  
Magnetic Field ◽  
Surface Charge ◽  
Signal To Noise Ratio ◽  
Magnetic Field Sensor ◽  
Two Dimensional ◽  
Signal To Noise ◽  
Linear Region ◽  
Field Sensor ◽  
Device Geometry ◽  
Noise Ratio

The two-dimensional distributions of the potential, current, and surface charge for a magnetic-field-sensitive N-channel MOSFET have been computed numerically. The MOSFET is operated in the linear region and is based on a triple-drain configuration. The sensitivity as well as the signal-to-noise ratio is studied for a variety of channel geometries, and an optimal device geometry is presented.

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