- spatial-frequency pattern
- испытательная таблица пространственных частот
English-Russian dictionary of telecommunications and their abbreviations. A.V. Alexandrov.. 2004.
spatial-frequency pattern
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Spatial filter — A spatial filter is an optical device which uses the principles of Fourier optics to alter the structure of a beam of coherent light or other electromagnetic radiation. Spatial filtering is commonly used to clean up the output of lasers, removing … Wikipedia
Spatial anti-aliasing — In digital signal processing, spatial anti aliasing is the technique of minimizing the distortion artifacts known as aliasing when representing a high resolution image at a lower resolution. Anti aliasing is used in digital photography, computer… … Wikipedia
Moiré pattern — Moiré and Moire redirect here. For other uses, see Moire (disambiguation) … Wikipedia
Scaling pattern of occupancy — William E. Kunin (1998) [Kunin, WE. 1998. Extrapolating species abundance across spatial scales. Science, 281: 1513 1515.] presented a method to estimate species relative abundance by using the presence absence distribution map. In his paper, he… … Wikipedia
Occupancy frequency distribution — In macroecology and community ecology, an occupancy frequency distribution (OFD) is the distribution of the numbers of species occupying different numbers of areas.[1] It was first reported in 1918 by the Danish botanist Christen C. Raunkiær in… … Wikipedia
optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… … Universalium
Optical resolution — This article is about optical resolution in optics. For the method of separating enantiomers in chemistry, see Chiral resolution. Optical resolution describes the ability of an imaging system to resolve detail in the object that is being imaged.… … Wikipedia
Superlens — A superlens, super lens or perfect lens is a lens which uses metamaterials to go beyond the diffraction limit. The diffraction limit is an inherent limitation in conventional optical devices or lenses.[1] In 2000, a type of lens was proposed,… … Wikipedia
Evoked potential — Intervention MeSH D005071 An evoked potential (or evoked response ) is an electrical potential recorded from the nervous system of a human or other animal following presentation of a … Wikipedia
Visual cortex — Brain: Visual cortex View of the brain from behind. Red = Brodmann area 17 (primary visual cortex); orange = area 18; yellow = area 19 … Wikipedia
Fourier optics — is the study of classical optics using techniques involving Fourier transforms and can be seen as an extension of the Huygens Fresnel principle. The underlying theorem that light waves can be described as made up of sinusoidal waves, in a manner… … Wikipedia
