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A scanning pattern of parallel lines that form the image projected on a cathode-ray tube of a television set or display screen.

[German, from Latin rāstrum, rake (from the resemblance of the parallel lines to a rake's path); see rēd- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (Electronics) a pattern of horizontal scanning lines traced by an electron beam, esp on a television screen
2. (Broadcasting) a pattern of horizontal scanning lines traced by an electron beam, esp on a television screen
(Computer Science) to use web-based technology to turn (a digital image) into a large picture composed of a grid of black and white dots
[C20: via German from Latin: rake, from rādere to scrape]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈræs tər)

1. a pattern of scanning lines covering the area on which an image is projected on the cathode-ray tube of a TV set.
2. Computers. a set of horizontal lines composed of individual pixels, forming an image on a monitor.
[1934; < German: screen, network < Latin rāstrum toothed hoe, rake]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.raster - the rectangular formation of parallel scanning lines that guide the electron beam on a television screen or a computer monitor
video display, display - an electronic device that represents information in visual form
formation - a particular spatial arrangement
pel, picture element, pixel - (computer science) the smallest discrete component of an image or picture on a CRT screen (usually a colored dot); "the greater the number of pixels per inch the greater the resolution"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


nRaster m or nt
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
References in periodicals archive ?
"We understand how important security is in today's complex world, so we have come up with the VL-VM series Analog Video Intercom System, embedded with user-friendly technology and top-notch features that perfectly fit your needs," he said.
Everest Security is also the developer and primary manufacturer for HD-CVI technology which is often nicknamed as high definition analog video surveillance.
It combines historical and technical descriptions of film, analog video, and video encoding with discussion of artistic pieces using these formats, each focusing on one theme in the history of the moving image: mobility, the switch to digital TV, and the individual portrait.
The DFT-JR also has a bypass channel, which makes it possible to add more analog video, audio, or RS data transport signals.
In conjunction, the company has finalised the purchase of its Innovation 16x16 Analog Video & Stereo Routers by MediaTech in Hong Kong.
The Company designs, manufactures, sells, and supports an equipment portfolio of SD and HD digital video, as well as core analog video and high speed data solutions for distribution over coax, fiber and IP networks.
IMT, which recorded annual revenues of USD 7.2m in 2015, has 20 years of experience in the design and manufacture of state-of-the-art wireless digital and analog video products.
IMT, which recorded annual revenues of USD7.2 million in 2015, is a leader in high-performance video transmission technology, and has 20 years of experience in the design and manufacture of state-of-the-art wireless digital and analog video products.
On the backend, the camera offers a modular output, which will initially provide RS170 analog video, CameraLink[R] digital video, and RS232 command and control, but may be expanded to offer other industry standard interfaces.
Intuitive and easy to integrate into new or existing systems, the uncooled infrared camera has user-selectable NTSC or PAL analog video and simultaneous 14-bit/8-bit Camera Link digital video outputs.
With a larger file than conventional analog video generates, HD video requires a larger storage media which directly can affect secured internal server workflows, and can require hardware upgrades.

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