576i
standard-definition video mode From Wikipedia, the free encyclopedia
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576i is a type of digital video. It is standard-definition, which means it does not have high quality.[1] It was first used to change old analog television into digital TV in many countries that use 50 Hz electricity.
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Because of its association with older colour encoding systems, it is often referred to as PAL, PAL/SECAM or SECAM when compared to its 60 Hz NTSC colour-encoded counterpart, 480i.
576 identifies a vertical line count of 576 and the i identifies it as an interlaced resolution.[1] The refresh rate, 50 Hz, is sometimes including when finding out the video mode, i.e. 576i50; another notation is the frame rate, endorsed by both the International telecommunications Union in BT.601[2] and SMPTE in SMPTE 259M to make it 576i/25.
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