- spatial frequency domain
- пространственно-частотная область; область пространственных частот
Англо-русский словарь промышленной и научной лексики. 2014.
spatial frequency domain
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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
Frequency — For other uses, see Frequency (disambiguation). Three cyclically flashing lights, from lowest frequency (top) to highest frequency (bottom). f is the frequency in hertz (Hz), meaning the number of cycles per second. T is the period in seconds (s) … Wikipedia
Spatial disorientation — is a condition in which an aircraft pilot s perception of direction (proprioception) does not agree with reality. While it can be brought on by disturbances or disease within the vestibular system, it is more typically a temporary condition… … Wikipedia
Domain (graphonomics) — See: graphonomicsType of data used to describe a handwriting pattern.Signal processing:Transformations such as Fourier transform ordifferentiation/integration can be used to transform data betweendomains, e.g., spatial or frequency.… … Wikipedia
Orthogonal frequency-division multiple access — Multiplex techniques Circuit mode (constant bandwidth) TDM · FDM · SDM Polarization multiplexing Spatial multiplexing (MIMO) … Wikipedia
Finite-difference time-domain method — Finite difference time domain (FDTD) is a popular computational electrodynamics modeling technique. It is considered easy to understand and easy to implement in software. Since it is a time domain method, solutions can cover a wide frequency… … 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
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
White noise — is a random signal (or process) with a flat power spectral density. In other words, the signal contains equal power within a fixed bandwidth at any center frequency. White noise draws its name from white light in which the power spectral density… … Wikipedia
High-pass filter — A high pass filter is a filter that passes high frequencies well, but attenuates (reduces the amplitude of) frequencies lower than the cutoff frequency. The actual amount of attenuation for each frequency varies from filter to filter. It is… … Wikipedia
K-space (MRI) — independently introduced in 1983 by Ljunggren [Ljunggren S. Journal of Magnetic Resonance 1983; 54:338.] and Twieg [cite journal | author = Twieg D | title = The k trajectory formulation of the NMR imaging process with applications in analysis… … Wikipedia
