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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).
Providing the best picture quality for interlaced video signals without doubling the frame rate requires expensive and complex devices and algorithms, and can cause various artifacts. For television displays, deinterlacing systems are integrated into progressive scan TV sets that accept interlaced signal, such as broadcast SDTV signal.
Improvements in display device technologies drove the requirement for more advanced video processing and scaling. This included the introduction of a new product type called the VP400 Line Quadrupler (480i upconverted to 960p). In 2000 Faroudja introduced the industry's first line doubler for HDTV (1080i upconverted to 1080p).
The two SDTV signal types are 576i (with 576 interlaced lines of resolution, [6] derived from the European-developed PAL and SECAM systems), and 480i (with 480 interlaced lines of resolution, [3] based on the American NTSC system). SDTV refresh rates are 25, 29.97 and 30 frames per second, again based on the analog systems mentioned.
Interlacing divides the frame into two fields, each containing half the number of lines. Each field is scanned in 1/60 second under the 525-line system (or 480i – often incorrectly referred to as NTSC) or 1/50 of a second under the 625-line system (or 576i – often incorrectly referred to as PAL). With interlaced systems there are an odd ...
"I told my friends [about her], and they were like, 'Oh, Jesus Christ. It's like a miracle,'" Alec recalls to PEOPLE
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 ...
Later in the day, Quan was again joined by some of his fellow Goonies when Sean Astin, Cohen, Green and Feldman joined him at the premiere of his new film, "Love Hurts," at the TCL Chinese Theater.