spatial filtering

См. также в других словарях:

• 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

• N2pc — refers to an ERP component linked to selective attention.[1] The N2pc appears over visual cortex contralateral to the location in space to which subjects are attending; if subjects pay attention to the left side of the visual field, the N2pc… …   Wikipedia

• Cyclops laser — The single beam Cyclops laser at LLNL around the time of its completion in 1975. Cyclops was a high power laser built at the Lawrence Livermore National Laboratory (LLNL) in 1975. It was the second laser constructed in the lab s Laser program,… …   Wikipedia

• Eric L. Schwartz — (born 1947) is Professor of Cognitive and Neural Systems, [ [http://cns web.bu.edu/people/people.html people ] ] Professor of Electrical and Computer Engineering, [ [http://www.bu.edu/dbin/ece/web/people/faculty.php Boston University ECE… …   Wikipedia

• Histogramme (imagerie numérique) —  Pour l’article homonyme, voir Histogramme.  Une image de tournesol …   Wikipédia en Français

• Computer-generated holography — (CGH) is the method of digitally generating holographic interference patterns. A holographic image can be generated e.g. by digitally computing a holographic interference pattern and printing it onto a mask or film for subsequent illumination by… …   Wikipedia

• Template matching — is a technique in Digital image processing for finding small parts of an image which match a template image. It can be used in manufacturing as a part of quality control, [Aksoy, M. S., O. Torkul, and I. H. Cedimoglu. An industrial visual… …   Wikipedia

• Beamforming — is a signal processing technique used in sensor arrays for directional signal transmission or reception. This spatial selectivity is achieved by using adaptive or fixed receive/transmit beampattern. The improvement compared with an… …   Wikipedia

• Nova (laser) — View down Nova s laser bay between two banks of beamlines. The blue boxes contain the amplifiers and their flashtube pumps , the tubes between the banks of amplifiers are the spatial filters. Nova was a high power laser built at the Lawrence… …   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