- masking aperture
- 1) Техника: ограничивающая апертура, ограничивающая диафрагма2) Космонавтика: ограничивающее отверстие3) Макаров: апертура диафрагмы
Универсальный англо-русский словарь. Академик.ру. 2011.
masking aperture
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Aperture masking interferometry — is a form of speckle interferometry, allowing diffraction limited imaging from ground based telescopes. This technique allows ground based telescopes to reach the maximum possible resolution, allowing ground based telescopes with large diameters… … Wikipedia
Aperture synthesis — or synthesis imaging is a type of interferometry that mixes signals from a collection of telescopes to produce images having the same angular resolution as an instrument the size of the entire collection. At each separation and orientation, the… … Wikipedia
Masking (in art) — Contents 1 In painting 1.1 Solid masks 1.2 Liquid masks 2 … Wikipedia
Unsharp masking — is an image manipulation technique now familiar to many users of digital image processing software, but it seems to have been first used in Germany in the 1930s as a way of increasing the acutance, or apparent sharpness, of photographic images.… … Wikipedia
Speckle masking — (or bispectral analysis) is a speckle imaging method which involves estimation of the bispectrum or closure phases from each of the short exposures. The average bispectrum can then be calculated and then inverted to obtain an image. With a normal … Wikipedia
Cambridge Optical Aperture Synthesis Telescope — COAST, the Cambridge Optical Aperture Synthesis Telescope, is a multi element optical astronomical interferometer with baselines of up to 100 metres, which uses aperture synthesis to observe stars with angular resolution as high as one thousandth … Wikipedia
Speckle imaging — (also known as video astronomy ) describes a range of high resolution astronomical imaging techniques based either on the shift and add ( image stacking ) method or on speckle interferometry methods. These techniques can dramatically increase the … Wikipedia
Síntesis de apertura — Los interferómetros de apertura sintética usan la rotación de la Tierra para incrementar el número de orientacioes de base incluidas en una observación. Aquí, con la Tierra representada como una esfera gris, las línea de base entre el telescopio… … Wikipedia Español
History of astronomical interferometry — See also: astronomical interferometerWilliam Herschel knew as early as 1779 (Herschel 1805) that stars appeared much larger in telescopes than they really were but he did not know why. When Thomas Young demonstrated interference and the wave… … Wikipedia
Environmental scanning electron microscope — Wool fibers imaged in an ESEM by the use of two symmetrical plastic scintillating backscattered electron detectors … Wikipedia
ESEM — stands for environmental scanning electron microscope. This is a scanning electron microscope (SEM) that allows a gaseous environment in the specimen chamber. Whereas all conventional microscopes operate in vacuum, the ESEM has added a new… … Wikipedia
