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.
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.
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 was in use by the Special Broadcasting Service (SBS TV) and was previously used by the Seven Network, which has recently begun 1080i broadcasts.
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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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