Results 1 to 10 of about 230,662 (251)
Signal to Noise Ratio as a Cross-Platform Metric for Intraoperative Fluorescence Imaging [PDF]
Molecular Imaging, 2020 Real-time molecular imaging to guide curative cancer surgeries is critical to ensure removal of all tumor cells; however, visualization of microscopic tumor foci remains challenging.
Asmaysinh Gharia BA +4 more
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Photon statistics and signal to noise ratio for incoherent diffraction imaging [PDF]
New Journal of Physics, 2020 Intensity interferometry is a well known method in astronomy. Recently, a related method called incoherent diffractive imaging (IDI) was proposed to apply intensity correlations of x-ray fluorescence radiation to determine the 3D arrangement of the ...
Fabian Trost +2 more
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Signal-to-noise ratio and signal-to-noise efficiency in SMASH imaging [PDF]
Magnetic Resonance in Medicine, 1999 A general theory of signal-to-noise ratio (SNR) in simultaneous acquisition of spatial harmonics (SMASH) imaging is presented, and the predictions of the theory are verified in imaging experiments and in numerical simulations. In a SMASH image, multiple lines of k-space are generated simultaneously through combinations of magnetic resonance signals in ...
Daniel K. Sodickson +4 more
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Reliability of predicting image signal‐to‐noise ratio using noise equivalent count rate in PET imaging [PDF]
Medical Physics (Lancaster), 2012 PURPOSE Several investigators have shown that noise equivalent count rate (NECR) is linearly proportional to the square of image signal-to-noise ratio (SNR) when PET images are reconstructed using filtered back-projection. However, to our knowledge, none
Ting‐Ting Chang +5 more
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Improvement of the signal to noise ratio for fluorescent imaging in microfluidic chips
Scientific Reports, 2022 Microfluidics systems can be fabricated in various ways using original silicon glass systems, with easy Si processing and surface modifications for subsequent applications such as cell seeding and their study.
Xiaocheng Liu +4 more
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Single‐image signal‐to‐noise ratio estimation [PDF]
Scanning, 2001 AbstractA method for estimating the signal‐to‐noise ratio from a single image is presented in this paper. The autocorrelation‐based technique requires that image details be correlated over distances of a few pixels, while the noise is assumed to be uncorrelated from pixel to pixel.
Thong, J.T.L., Sim, K.S., Phang, J.C.H.
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Signal-to-noise ratio of Gaussian-state ghost imaging [PDF]
Physical Review A, 2009 The signal-to-noise ratios (SNRs) of three Gaussian-state ghost imaging configurations--distinguished by the nature of their light sources--are derived. Two use classical-state light, specifically a joint signal-reference field state that has either the maximum phase-insensitive or the maximum phase-sensitive cross correlation consistent with having a ...
Erkmen, Baris I., Shapiro, Jeffrey H.
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Signal to noise ratio of upgraded imaging bolometer for KSTAR [PDF]
Review of Scientific Instruments, 2018 An InfraRed imaging Video Bolometer (IRVB) was installed on KSTAR in 2012 having a ∼2 μm × 7 cm × 9 cm Pt foil blackened with graphite and a 5 mm × 5 mm aperture located 7.65 cm from the foil with 16 × 12 channels and a time resolution of 10 ms. The IR camera was an Indigo Phoenix (InSb, 320 × 256 pixels, 435 fps, <25 mK).
Byron J. Peterson +6 more
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Signal to Noise Ratio in Lensless Compressive Imaging
, 2014 We analyze the signal to noise ratio (SNR) in a lensless compressive imaging (LCI) architecture. The architecture consists of a sensor of a single detecting element and an aperture assembly of an array of programmable elements. LCI can be used in conjunction with compressive sensing to capture images in a compressed form of compressive measurements. In
Jiang, Hong, Huang, Gang, Wilford, Paul
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Optics Express, 2012 We present a theoretical and experimental comparison of three X-ray phase-contrast techniques: propagation-based imaging, analyzer-based imaging and grating interferometry. The signal-to-noise ratio and the figure of merit are quantitatively compared for
Paul C. Diémoz +3 more
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