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Dv Mark
DV refers to a family of codecs A codec is a device or computer program which encodes or Decoding methods, decodes a data stream or signal. ''Codec'' is a portmanteau of coder/decoder. In electronic communications, an endec is a device which acts as both an encoder and a decode ... and tape formats used for storing digital video Digital video is an electronic representation of moving visual images (video) in the form of encoded digital data. This is in contrast to analog video, which represents moving visual images in the form of analog signals. Digital video comprises ..., launched in 1995 by a consortium of video camera A video camera is a camera A camera is an optical Optics is the branch of physics Physics (from grc, φυσική (ἐπιστήμη), physikḗ (epistḗmē), knowledge of nature, from ''phýsis'' 'nature'), , is the natural ... manufacturers led by Sony , commonly known as Sony and stylized as SONY, is a Japanese mul ...
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Videotape
Videotape is magnetic tape Magnetic tape is a medium for , made of a thin, magnetizable coating on a long, narrow strip of . It was developed in Germany in 1928, based on . Devices that record and playback audio and video using magnetic tape are s and s respectively. A ... used for storing video Video is an electronic Electronic may refer to: *Electronics Electronics comprises the physics, engineering, technology and applications that deal with the emission, flow and control of electrons in vacuum and matter. It uses active d ... and usually sound In physics Physics is the that studies , its , its and behavior through , and the related entities of and . "Physical science is that department of knowledge which relates to the order of nature, or, in other words, to the regular ... in addition. Information stored can be in the form of either an analog signal An analog signal is any continuous signal In mathematical dynamics, discrete t ...
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Videocassette
Videotape is magnetic tape Magnetic tape is a medium for , made of a thin, magnetizable coating on a long, narrow strip of . It was developed in Germany in 1928, based on . Devices that record and playback audio and video using magnetic tape are s and s respectively. A ... used for storing video Video is an electronic Electronic may refer to: *Electronics Electronics comprises the physics, engineering, technology and applications that deal with the emission, flow and control of electrons in vacuum and matter. It uses active d ... and usually sound In physics Physics is the that studies , its , its and behavior through , and the related entities of and . "Physical science is that department of knowledge which relates to the order of nature, or, in other words, to the regular ... in addition. Information stored can be in the form of either an analog signal An analog signal is any continuous signal In mathematical dynamics, discrete t ...
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Camcorders
A camcorder is an electronic device originally combining a video camera A video camera is a camera A camera is an optical Optics is the branch of physics Physics (from grc, φυσική (ἐπιστήμη), physikḗ (epistḗmē), knowledge of nature, from ''phýsis'' 'nature'), , is the natural ... and a videocassette recorder A videocassette recorder (VCR) or video recorder is an electromechanical device that records analog audio and analog video from broadcast television or other source on a removable, magnetic tape Videocassette#Cassette formats, videocassette .... The earliest camcorders were tape-based, recording analog signal An analog signal is any continuous signal In mathematical dynamics, discrete time and continuous time are two alternative frameworks within which to model variables that evolve over time. Discrete time Discrete time views values of vari ...s onto videotape cassettes. In 2006, digital recording became the no ...
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Camcorder
A camcorder is an electronic device originally combining a video camera A video camera is a camera A camera is an optical Optics is the branch of physics Physics (from grc, φυσική (ἐπιστήμη), physikḗ (epistḗmē), knowledge of nature, from ''phýsis'' 'nature'), , is the natural ... and a videocassette recorder Not all video tape recorders use a cassette to contain the videotape. Early models of consumer video tape recorders (Video tape recorder">VTRs), and most professional broadcast analog videotape machines (e.g. Type C videotape, 1-inch Type C .... The earliest camcorders were tape-based, recording analog signal An analog signal is any continuous signal for which the time-varying feature of the signal is a representation of some other time-varying quantity, i.e., ''analogous'' to another time-varying signal. For example, in an analog audio signal, the ...s onto videotape cassettes. In 2006, digital recording became the no ...
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Digital Video
Digital video is an electronic representation of moving visual images (video) in the form of encoded digital data. This is in contrast to analog video, which represents moving visual images in the form of analog signals. Digital video comprises a series of digital images displayed in rapid succession. Digital video was first introduced commercially in 1986 with the D1 (Sony), Sony D1 format, which recorded an uncompressed standard definition component video signal in digital form. In addition to uncompressed formats, popular Data compression, compressed digital video formats today include H.264 and MPEG-4. Modern interconnect standards used for playback of digital video include HDMI, DisplayPort, Digital Visual Interface (DVI) and serial digital interface (SDI). Digital video can be copied and reproduced with no degradation in quality. In contrast, when analog sources are copied, they experience generation loss. Digital video can be stored on digital media such as Blu-ray Disc, ...
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Bit Rate
In telecommunications and computing, bit rate (bitrate or as a variable ''R'') is the number of bits that are conveyed or processed per unit of time. The bit rate is expressed in the unit Data rate units, bit per second unit (symbol: ''bit/s''), often in conjunction with an SI prefix such as kilo-, kilo (1 kbit/s = 1,000 bit/s), mega-, mega (1 Mbit/s = 1,000 kbit/s), giga-, giga (1 Gbit/s = 1,000 Mbit/s) or tera-, tera (1 Tbit/s = 1,000 Gbit/s). The non-standard abbreviation ''bps'' is often used to replace the standard symbol ''bit/s'', so that, for example, 1 Mbit/s is used to mean one million bits per second. In most computing and digital communication environments, one byte per second (1 B/s) corresponds to 8 bit/s. Prefixes When quantifying large or small bit rates, SI prefixes (also known as metric prefixes or decimal prefixes) are used, thus: Binary prefixes are sometimes used for bit rates. T ...
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Analog Video
Video is an electronic Electronic may refer to: *Electronics Electronics comprises the physics, engineering, technology and applications that deal with the emission, flow and control of electrons in vacuum and matter. It uses active devices to control electron flow b ... medium for the recording, copyingCopying is the duplication of information Information is processed, organised and structured data. It provides context for data and enables decision making process. For example, a single customer’s sale at a restaurant is data – this becom ..., playback, broadcasting Broadcasting is the distributionDistribution may refer to: Mathematics *Distribution (mathematics) Distributions, also known as Schwartz distributions or generalized functions, are objects that generalize the classical notion of functi ..., and display of moving visual The visual system comprises the sensory organ A sense is a biological system A biological system is a comp ...
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576i
576i is a standard-definition television, standard-definition video mode originally used for terrestrial television in most countries of the world where the utility frequency for electric power distribution is 50 Hz. Because of its close association with the colour encoding system, it is often referred to as simply PAL, PAL/SECAM or SECAM when compared to its 60 Hz (typically, see PAL-M) NTSC-colour-encoded counterpart, 480i. In digital applications it is usually referred to as "576i"; in analogue contexts it is often called "625 lines", and the aspect ratio is usually 4:3 in analogue transmission and 16:9 in Digital Video Broadcasting, digital transmission. The ''576'' identifies a vertical resolution of 576 lines, and the ''i'' identifies it as an Interlaced video, interlaced resolution. The field rate, which is 50 Hertz, Hz, is sometimes included when identifying the video mode, i.e. 576i50; another notation, endorsed by both the International Telecommunication Union i ...
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Video
Video is an electronic Electronic may refer to: *Electronics Electronics comprises the physics, engineering, technology and applications that deal with the emission, flow and control of electrons in vacuum and matter. It uses active devices to control electron flow b ... medium for the recording, copyingCopying is the duplication of information Information is processed, organised and structured data. It provides context for data and enables decision making process. For example, a single customer’s sale at a restaurant is data – this becom ..., playback, broadcasting Broadcasting is the distributionDistribution may refer to: Mathematics *Distribution (mathematics) Distributions, also known as Schwartz distributions or generalized functions, are objects that generalize the classical notion of functi ..., and display of moving visual The visual system comprises the sensory organ A sense is a biological system A biological system is a comp ...
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Image Resolution
Image resolution is the detail an image An image (from la, imago) is an artifact that depicts visual perception Visual perception is the ability to interpret the surrounding environment Environment most often refers to: __NOTOC__ * Natural environment, all living and non- ... holds. The term applies to digital image A digital image is an composed of s, also known as ''pixels'', each with ', ' of numeric representation for its or that is an output from its fed as input by its denoted with ''x'', ''y'' on the x-axis and y-axis, respectively. Depending on ...s, film images, and other types of images. Higher resolution means more image detail. Image resolution can be measured in various ways. Resolution quantifies how close lines can be to each other and still be visibly ''resolved''. Resolution units can be tied to physical sizes (e.g. lines per mm, lines per inch), to the overall size of a picture (lines per picture height, also known simply as lines, T ...
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NTSC
The National Television System Committee (NTSC)National Television System Committee (1951–1953), Report and Reports of Panel No. 11, 11-A, 12-19, with Some supplementary references cited in the Reports, and the Petition for adoption of transmission standards for color television before the Federal Communications Commission, n.p., 1953], 17 v. illus., diagrs., tables. 28 cm. LC Control No.:5402138Library of Congress Online Catalog/ref> developed the analog television Analog television is the original television Television (TV), sometimes shortened to tele or telly, is a telecommunication medium used for transmitting moving images in monochrome (black and white), or in color, and in two or three ... color system that was introduced in North America in 1954 and stayed in use until digital conversion. It is one of three major analog color television standards, the others being PAL 300px, upright=1.2, Analog television encoding systems by nation; SECAM.html"_ ...
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