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576p is the shorthand name for a video mode. The p stands for progressive scan, i.e. non-interlaced, the 576 for a vertical resolution of 576 lines, usually with a horizontal resolution of 720 or 704 pixels. The frame rate can be given explicitly after the letter.
[edit] 576p25
In other words, standard-definition television (SDTV) with a frame rate of 25 hertz. It can be used on analog PAL or SECAM systems (as a 576i signal with both interlaced fields corresponding to a unique frame). PALplus supports it via a "movie" mode signal flag. It can also be transported by both major digital television formats, ATSC and DVB and on DVD.
[edit] 576p50
With doubled temporal resolution, 576p50 is considered enhanced-definition television (EDTV). In some countries, such as Australia, the 576p resolution standard is technically considered High Definition and as such was used by the Special Broascasting Service (SBS TV) & the Seven Network, having now been replaced by 720p and 1080i respectively.
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Digital Video Resolutions |
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| Designation |
| Usage Examples |
Definition (lines) |
Rate (Hz) |
| Interlaced (fields) |
Progressive (frames) |
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| Low; MP@LL |
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| Standard; MP@ML |
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| Enhanced |
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| High; MP@HL |
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| This table illustrates total horizontal and vertical pixel resolution via box size. It does not accurately reflect the screen or pixel shape (aspect ratio) of these formats, which is either 4:3, or 16:9. |
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