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480i is the video mode used for standard-definition digital video [1] in the Caribbean, Japan, South Korea, Taiwan, Philippines, Myanmar, Western Sahara, and most of the Americas (with the exception of Argentina, Paraguay, and Uruguay).
Progressive scan: the opposite of interlacing; the image is displayed line by line. Progressive segmented frame: a scheme designed to acquire, store, modify, and distribute progressive-scan video using interlaced equipment and media; Telecine: a method for converting film frame rates to television frame rates using interlacing; Screen tearing
Standard definition—480i, to maintain compatibility with existing NTSC sets when a digital television broadcast is converted back to an analog one [citation needed] —either by a converter box or a cable/satellite operator's proprietary equipment; Enhanced definition—480p, about the same quality as DVDs; High definition—720p; High ...
Agreed, all that analog talk needs to be removed. 480i is a digital mode. Did a similar fix to the 576i article, will do the same here when possible 4throck 00:49, 30 December 2021 (UTC) I suppose. But DVD and 480i were standardized when the usual display device was analog. If you were lucky, you used the component video output.
If Ballard's patent (U.S. patent 2,152,234, page 3, lines 26 to 42 in the first column) is to be trusted, interlacing was originally deviced as a way to boost the refresh rate and the vertical resolution of an existing TV system without requiring more bandwidth. While it is possible to make a reverse comparison, starting from a progressively ...
Interlaced video signals such as 480i and 1080i require a deinterlacing step that adds lag. Anecdotally [original research?], display lag is significantly less when displays operate in native resolutions for a given LCD screen and in a progressive scanning mode. External devices have also been shown to reduce overall latency by providing faster ...
Deinterlacing is the process of converting interlaced video into a non-interlaced or progressive form. Interlaced video signals are commonly found in analog television, VHS, Laserdisc, digital television when in the 1080i format, some DVD titles, and a smaller number of Blu-ray discs.
Unlike traditional, interlaced video where interlacing is done on a line by line basis, showing either odd or even lines of video at any one time, thus requiring 2 fields of video to complete a video frame, MUSE used a four-field dot-interlacing [35] [15] [36] [37] [38] cycle, meaning it took four fields to complete a single MUSE frame, [39 ...