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On-Orbit Modulation Transfer Function Estimation Based on the Refined Image Kernel [PDF]

open access: yesSensors, 2023
To overcome the limitations of traditional on-orbit modulation function transfer (MTF) measurement methods that are heavily dependent on natural features, scenery, artificial edges, and point source targets, this paper presents an on-orbit MTF ...
Yuanhang Wang   +5 more
doaj   +2 more sources

Assessment of uncertainty depending on various conditions in modulation transfer function calculation using the edge method [PDF]

open access: yesJournal of Medical Physics, 2021
In medical X-ray imaging, to perform optimal operations, it is essential for the user to understand whether a required image quality level which depends on a diagnostic task can be achieved with the imaging system used.
Sho Maruyama
doaj   +2 more sources

The modulation transfer function for speech intelligibility. [PDF]

open access: yesPLoS Computational Biology, 2009
We systematically determined which spectrotemporal modulations in speech are necessary for comprehension by human listeners. Speech comprehension has been shown to be robust to spectral and temporal degradations, but the specific relevance of particular ...
Taffeta M Elliott   +1 more
doaj   +7 more sources

Best Practices for Measuring the Modulation Transfer Function of Video Endoscopes [PDF]

open access: yesSensors
Endoscopes are crucial for assisting in surgery and disease diagnosis, including the early detection of cancer. The effective use of endoscopes relies on their optical performance, which can be characterized with a series of metrics such as resolution ...
Quanzeng Wang   +3 more
doaj   +2 more sources

Modulation Transfer Function Analysis in Myopic Model Eye

open access: yesASM Science Journal, 2021
Hitherto, the eye modelling is based on the emmetropic eye taken its ocular optical components value from the population-based studies. However, no studies have been done to study the effect of aberration of myopic refractive error by modelling the eye ...
Shah Farez Othman   +3 more
doaj   +1 more source

Study the Field of View Influence on the Monchromatic and Polychromatic Image Quality of a Human Eye

open access: yesJOIV: International Journal on Informatics Visualization, 2022
In this paper, the effect of the eye field of view (known as F.O.V.) on the performance and quality of the image of the human eye is studied, analyzed, and presented in detail.
Adeeb Mansoor Qasim   +4 more
doaj   +1 more source

Line-Based Modulation Transfer Function Measurement of Pixelated Displays

open access: yesIEEE Access, 2020
This paper proposes a line-based method for measuring the modulation transfer function (MTF) of a display. In this method, the spatial distribution of a single line that is displayed in a small region of the screen is analyzed.
Kenichiro Masaoka
doaj   +1 more source

Measurement of the optical transfer function using a white-dot pattern presented on a liquid-crystal display [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2013
The optical transfer function (OTF) and its modulus, the modulation transfer function (MTF), are widely accepted measurements of the quality of optical systems. There are different ways of estimating both OTF and MTF. Random-dot-pattern methods have some
Navas-Moya F. A.   +3 more
doaj   +1 more source

Review of kinetic modulation experiments in low power nuclear reactors

open access: yesEPJ Nuclear Sciences & Technologies, 2020
The safety improvement of nuclear reactors requires continuous efforts in understanding the fundamental physical quantities related to the fission process. In neutronic models, the reactor dynamics is covered by the kinetic parameters to characterize the
Jiang Yifeng   +3 more
doaj   +1 more source

Wave Structure Function and Long-Exposure MTF for Gaussian-Beam Waves Propagating in Anisotropic Maritime Atmospheric Turbulence

open access: yesApplied Sciences, 2020
The expressions of wave structure function (WSF) and long-exposure modulation transfer function (MTF) for laser beam propagation through non-Kolmogorov turbulence were derived in our previous work. In this paper, based on anisotropic maritime atmospheric
Bing Guan   +3 more
doaj   +1 more source

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