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Standard-definition television

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Standard-definition television (SDTV or SD) is a television system which uses a resolution that is not considered to be either high- or enhanced-definition. [1]

41 relations: Anamorphic widescreen, Aspect ratio, Aspect ratio (image), ATSC standards, Bitstream, Digital audio broadcasting, Digital television, Digital Video Broadcasting, Enhanced-definition television, Frame rate, Ghosting (television), Hardware overlay, High-definition television, Horizontal blanking interval, Interlaced video, Intra-frame coding, ISDB, ISDB-T International, Jitter, Letterboxing (filming), Macroblock, Moving Picture Experts Group, Multiplexing, Nominal analogue blanking, NTSC, Overscan, PAL, Pan and scan, Pillarbox, Pixel aspect ratio, Rec. 601, Refresh rate, Rendering (computer graphics), SECAM, SMPTE 259M, Television channel, Video Graphics Array, White noise, 16:9, 480i, 576i.

Anamorphic widescreen

Anamorphic widescreen (also called Full height anamorphic) is a process by which a comparatively wide widescreen image is horizontally compressed to fit into a storage medium (photographic film or MPEG-2 Standard Definition frame, for example) with a narrower aspect ratio, reducing the horizontal resolution of the image while keeping its full original vertical resolution.

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Aspect ratio

The aspect ratio of a geometric shape is the ratio of its sizes in different dimensions.

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Aspect ratio (image)

The aspect ratio of an image describes the proportional relationship between its width and its height.

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ATSC standards

Advanced Television Systems Committee (ATSC) standards are a set of standards for digital television transmission over terrestrial, cable, and satellite networks.

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Bitstream

A bitstream (or bit stream), also known as binary sequence, is a sequence of bits.

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Digital audio broadcasting

Digital audio broadcasting (DAB) is a digital radio standard for broadcasting digital audio radio services, used in many countries across Europe, Asia, and the Pacific.

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Digital television

Digital television (DTV) is the transmission of television signals, including the sound channel, using digital encoding, in contrast to the earlier television technology, analog television, in which the video and audio are carried by analog signals.

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Digital Video Broadcasting

Digital Video Broadcasting (DVB) is a set of internationally open standards for digital television.

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Enhanced-definition television

Enhanced-definition television, or extended-definition television (EDTV) is an American Consumer Electronics Association (CEA) marketing shorthand term for certain digital television (DTV) formats and devices.

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Frame rate

Frame rate (expressed in or fps) is the frequency (rate) at which consecutive images called frames appear on a display.

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Ghosting (television)

In television, a ghost is a replica of the transmitted image, offset in position, that is super-imposed on top of the main image.

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Hardware overlay

In computing, hardware overlay, a type of video overlay, provides a method of rendering an image to a display screen with a dedicated memory buffer inside computer video hardware.

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High-definition television

High-definition television (HDTV) is a television system providing an image resolution that is of substantially higher resolution than that of standard-definition television, either analog or digital.

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Horizontal blanking interval

Horizontal blanking interval refers to a part of the process of displaying images on a computer monitor or television screen via raster scanning.

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Interlaced video

Interlaced video is a technique for doubling the perceived frame rate of a video display without consuming extra bandwidth.

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Intra-frame coding

Intra-frame coding is used in video coding (compression).

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ISDB

The Integrated Services Digital Broadcasting (ISDB) (Japanese:, Tōgō dejitaru hōsō sābisu) is a Japanese standard for digital television (DTV) and digital radio used by the country's radio and television networks.

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ISDB-T International

ISDB-T International, ISDB-Tb or SBTVD, short for Sistema Brasileiro de Televisão Digital (Brazilian Digital Television System), is a technical standard for digital television broadcast used in Brazil, Botswana, Peru, Argentina, Chile, Honduras, Venezuela, Ecuador, Costa Rica, Paraguay, Philippines, Bolivia, Nicaragua, El Salvador and Uruguay, based on the Japanese ISDB-T standard.

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Jitter

In electronics and telecommunications, jitter is the deviation from true periodicity of a presumably periodic signal, often in relation to a reference clock signal.

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Letterboxing (filming)

Letterboxing is the practice of transferring film shot in a widescreen aspect ratio to standard-width video formats while preserving the film's original aspect ratio.

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Macroblock

Macroblock is a processing unit in image and video compression formats based on linear block transforms, such as the discrete cosine transform (DCT).

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Moving Picture Experts Group

The Moving Picture Experts Group (MPEG) is a working group of authorities that was formed by ISO and IEC to set standards for audio and video compression and transmission.

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Multiplexing

In telecommunications and computer networks, multiplexing (sometimes contracted to muxing) is a method by which multiple analog or digital signals are combined into one signal over a shared medium.

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Nominal analogue blanking

Nominal analog blanking or nominal analogue blanking is the outermost part of the overscan of a standard definition digital television image.

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NTSC

NTSC, named after the National Television System Committee,National Television System Committee (1951–1953),, 17 v. illus., diagrs., tables.

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Overscan

Overscan is a behaviour in certain television sets, in which part of the input picture is shown outside of the visible bounds of the screen.

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PAL

Phase Alternating Line (PAL) is a color encoding system for analogue television used in broadcast television systems in most countries broadcasting at 625-line / 50 field (25 frame) per second (576i).

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Pan and scan

Pan and scan is a method of adjusting widescreen film images so that they can be shown in fullscreen proportions of a standard definition 4:3 aspect ratio television screen, often cropping off the sides of the original widescreen image to focus on the composition's most important aspects.

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Pillarbox

The pillarbox effect occurs in widescreen video displays when black bars (mattes or masking) are placed on the sides of the image.

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Pixel aspect ratio

Pixel aspect ratio (often abbreviated PAR) is a mathematical ratio that describes how the width of a pixel in a digital image compares to the height of that pixel.

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Rec. 601

ITU-R Recommendation BT.601, more commonly known by the abbreviations Rec.

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Refresh rate

The refresh rate (most commonly the "vertical refresh rate", "vertical scan rate" for cathode ray tubes) is the number of times in a second that a display hardware updates its buffer.

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Rendering (computer graphics)

Rendering or image synthesis is the automatic process of generating a photorealistic or non-photorealistic image from a 2D or 3D model (or models in what collectively could be called a scene file) by means of computer programs.

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SECAM

SECAM, also written SÉCAM (Séquentiel couleur à mémoire, French for "Sequential colour with memory"), is an analogue color television system first used in France.

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SMPTE 259M

SMPTE 259M is a standard published by SMPTE which "...

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Television channel

A television channel is a broadcast frequency or virtual number over which a television station or television network is distributed.

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Video Graphics Array

Video Graphics Array (VGA) is the display hardware first introduced with the IBM PS/2 line of computers in 1987, following CGA and EGA introduced in earlier IBM personal computers.

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White noise

In signal processing, white noise is a random signal having equal intensity at different frequencies, giving it a constant power spectral density.

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16:9

16:9 (1.7:1) (16:9.

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480i

480i is a shorthand name for the video mode used for standard-definition analog or digital television in Caribbean, Myanmar, Japan, South Korea, Taiwan, Philippines, Laos, Western Sahara, and most of the Americas (with the exception of Argentina, Paraguay and Uruguay).

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576i

576i is a standard-definition video mode originally used for broadcast television in most countries of the world where the utility frequency for electric power distribution is 50 Hz.

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SD video, SDTV, Standard Definition, Standard Definition TV, Standard Definition Television, Standard definition, Standard definition television, Standard-definition.

References

[1] https://en.wikipedia.org/wiki/Standard-definition_television

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