Results 21 to 30 of about 54,445 (247)
Satellite Operation Design for Assessing MTF Performance of Earth Observation Satellite Using Stellar Sources [PDF]
Journal of Astronomy and Space Sciences, 2007 Modulation Transfer Function (MTF) of satellite image is an important performance index in satellite image applications. Therefore MTF performance is assessed using satellite image for the ground target during LEOP phase after launch.
Hee Seob Kim +2 more
doaj +1 more source
Heliyon, 2023 Background: Metal-responsive transcription factor-1 performs a necessary position in a range of cancers. It is unknown, though, how the prognosis of patients with low-grade gliomas is related to immune infiltration.
Huaixu Li +5 more
doaj +1 more source
Modulation Transfer Function Analysis in Myopic Model Eye
ASM 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
International Conference on Space Optics — ICSO 2010, 2017 MTF (Modulation Transfer Frequency) of a detector is a key parameter for imagers. When image is not moving on the detector, MTF can be measured by some methods (knife edge, slanted slit,…). But with LEO satellites, image is moving on the surface of the detector, and MTF has to be measured in the same way: that is what we call "dynamic MTF".
Frederic Seve +3 more
openaire +1 more source
Automatic Estimation of Modulation Transfer Functions
, 2018 The modulation transfer function (MTF) is widely used to characterise the performance of optical systems. Measuring it is costly and it is thus rarely available for a given lens specimen.
Bauer, Matthias +3 more
core +1 more source
Electro-Optical Design of Imaging Payload for a Remote Sensing Satellite [PDF]
فصلنامه علوم و فناوری فضایی, 2010 Remote sensing using small spacecraft arising from multi-objective economic activity problems is getting more and more developed. These satellites require very accurate pointing to specific locations of interest, with high reliability and small latency ...
E Peighani-Asl +3 more
doaj
Imaging performance of a CaWO4/CMOS sensor
Fracture and Structural Integrity, 2019 The aim of this study was to investigate the modulation transfer function (MTF) and the effective gain transfer function (eGTF) of a non-destruc¬¬tive testing (NDT)/industrial inspection complementary metal oxide semi¬conductor (CMOS) sensor in ...
Niki Martini +11 more
doaj +1 more source
Journal of Synchrotron RadiationOptimizing phase-contrast micro-computed tomography (µCT) for a given object is not trivial if the radiation is polychromatic and the object multi-material.
Matthias Diez, Simon Zabler
doaj +1 more source
CMOS pixels crosstalk mapping and its influence on measurements accuracy for space applications [PDF]
, 2005 Due to different local intra-pixel sensitivity and crosstalk between neighboring pixels, the Pixel Response Function of detectors (PRF - signal of the pixel as a function of a point source position) is generally non-uniform.
Estribeau, Magali, Magnan, Pierre
core +1 more source
On optimally partitioning a text to improve its compression [PDF]
, 2009 In this paper we investigate the problem of partitioning an input string T in such a way that compressing individually its parts via a base-compressor C gets a compressed output that is shorter than applying C over the entire T at once.
Ferragina, Paolo +2 more
core +3 more sources