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The field rate, which is 50 Hz, is sometimes included when identifying the video mode, i.e. 576i50; another notation, endorsed by both the International Telecommunication Union in BT.601 and SMPTE in SMPTE 259M, includes the frame rate, as in 576i/25.
Mar 11, 2008 · In general UK produced video is shot with a field rate of 50 Hz (50i) where the two fields in a frame are 20ms apart, whilst programmes shot on film or shot to look like film will have a field rate of 25
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The field rate, which is 50 Hz, is sometimes included when identifying the video mode, i.e. 576i50 ; another notation, endorsed by EBU/SMPTE, includes the frame rate, as in 576i/25 . Its basic parameters common to both analogue and digital implementations are: 576 scan lines or vertical pixels of picture content, 25 frames (giving 50 fields ...
Feb 18, 2011 · In HD video, frame rate and field rate are often used interchangeably and it can be hard to tell what someone is talking about. Here is an easy way to think of it. When an HD format is interlaced, the number generally describes field rate (1080i60 would describe 60 fields per second).
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10 = +255 kHz for max. rate; 11 = +255 kHz for max. and min. rates. Bits 1–0: Vertical rate offsets: 00 = none; 10 = +255 Hz for max. rate; 11 = +255 Hz for max. and min. rates. 5: Minimum: vertical field rate (1–255 Hz; 256–510 Hz, if offset). 6: Maximum 7: Minimum: horizontal line rate (1–255 kHz; 256–510 kHz, if offset). 8: Maximum 9
This can lead to confusion, because industry-standard SMPTE timecode formats always deal with frame rate, not field rate. To avoid confusion, SMPTE and EBU always use frame rate to specify interlaced formats, e.g., 480i60 is 480i/30, 576i50 is 576i/25, and 1080i50 is 1080i/25.
576i. 576i is a standard-definition digital video mode, [1] originally used to make analog television digital in most countries where the utility frequency for power distribution is 50 Hz. 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 ...
