View source for 576p

{{Short description|Shorthand name for a video display resolution}}
{{Reorganize|date=May 2023}}}}
'''576p''' is the shorthand name for a video display resolution. The ''p'' stands for [[Engineering:Progressive scan|progressive scan]], i.e. non-[[Interlaced video|interlaced]], the ''576'' for a vertical resolution of 576 [[Pixel|pixel]]s (the [[Frame rate|frame rate]] can be given explicitly after the letter).<ref>{{cite web|url=http://www.afterdawn.com/glossary/terms/576p.cfm|title=576p - AfterDawn: Glossary of technology terms & acronyms|last=AfterDawn.com}}</ref><ref name=":0">{{Cite book|url=https://books.google.com/books?id=Kp5J7G8kXN4C&dq=%22576p%22+-wikipedia&pg=PA51|title=Video Demystified: A Handbook for the Digital Engineer|first=Keith|last=Jack|date=June 19, 2005|publisher=Newnes|isbn=9780750678223 |via=Google Books}}</ref> Usually it corresponds to a digital video mode with a 4:3 [[Engineering:Anamorphic widescreen|anamorphic resolution]] of 720x576 and a [[Frame rate|frame rate]] of 25 frames per second ('''576p25'''), and thus using the same bandwidth and carrying the same amount of pixel data as [[576i|576i]], but other resolutions and frame rates are possible.<ref name=":0"/><ref name=":1">{{Cite book|url=https://books.google.com/books?id=9xQbHjZwfz4C&dq=%22576p%22+-wikipedia&pg=PA47|title=Digital Video and DSP: Instant Access|first=Keith|last=Jack|date=October 7, 2008|publisher=Newnes|isbn=9780080560120 |via=Google Books}}</ref> 

[[Organization:ITU-R|ITU-R]] Recommendation BT.1358 allows the following resolutions, coded as [[RGB color model|R'G'B']] or [[YCbCr|YC<sub>B</sub>C<sub>R</sub>]], with timings compatible with [[Engineering:ITU-R BT.656|BT.656]]:<ref>{{Cite book |url=https://www.itu.int/dms_pubrec/itu-r/rec/bt/R-REC-BT.1358-1-200709-W!!PDF-E.pdf |title=Recommendation ITU-R BT.1358-1 - Studio parameters of 625 and 525 line progressive television systems |publisher=ITU-R |year=2007}}</ref><ref name=":0" /><ref name=":1" />

* 1024 x 576p ([[Engineering:16:9 aspect ratio|16:9]] [[Pixel aspect ratio|square pixel]] format)
* 960 x 576p
* 768 x 576p ([[Engineering:Fullscreen (aspect ratio)|4:3]] square pixel format)
* 720 x 576p (4:3 [[Engineering:Anamorphic format|anamorphic]])
* 704 x 576p (based on 720 x 576p, blanking the first and last 8 pixels of each line)
* 544 x 576p
* 480 x 576p

576p is considered [[Engineering:Standard-definition television|standard definition]] for [[Engineering:PAL#PAL region|PAL regions]]. It can be transported by both major [[Engineering:Digital television|digital television]] formats ([[ATSC standards|ATSC]] and [[DVB]]) and on [[Engineering:DVD-Video|DVD-Video]] (if limited to 25 fps). It is defined as a valid ''[[Engineering:Enhanced-definition television|enhanced-definition television]]'' resolution in the SMPTE standard [[Engineering:SMPTE 344M|344M]].<ref>{{Cite book |last=Poynton |first=Charles |title=Digital Video and HD: Algorithms and Interfaces |year=2003 |isbn=9781558607927 |url=https://books.google.com/books?id=rsEwE2X3cFAC&dq=%22SMPTE+344M%22+-wiki&pg=PA130}}</ref> SMPTE 344M defines a 576p50 standard with twice the data rate of [[Rec. 601|BT.601]], using 704 × 576 active pixels with 16 x 576 horizontal blanking pixels.

== PAL ==
This resolution can be also named as ''PAL'', for example in the context home video<ref>{{Cite web|url=https://books.google.com/books?id=l-VUAAAAMAAJ&q=PAL+%22576p%22+-wikipedia|title=Digit|date=June 19, 2004|publisher=IDG Communications.|via=Google Books}}</ref><ref>{{Cite web|url=https://books.google.com/books?id=DusDAAAAMBAJ&dq=DVD+%22576p%22+-wikipedia&pg=PT50|title=HWM|first=S. P. H.|last=Magazines|date=February 19, 2007|publisher=SPH Magazines|via=Google Books}}</ref> or gaming consoles,<ref>{{Cite book|url=https://books.google.com/books?id=2YP3xJVcXf4C&dq=Xbox+360+576p+pal&pg=PA52|title=Xbox 360?For Dummies|first1=Brian|last1=Johnson|first2=Duncan|last2=Mackenzie|date=January 31, 2006|publisher=John Wiley & Sons|isbn=9780471771807 |via=Google Books}}</ref><ref>{{Cite web|url=https://manuals.playstation.net/document/en/ps3/current/settings/videooutput.html|title=PS3 &#124; Video Output Settings|website=manuals.playstation.net}}</ref> because of its relation with the analog color system using a similar number of scanlines. But 576p can be used to generate both [[Engineering:PAL|PAL]] or [[Engineering:SECAM|SECAM]] interlaced analog signals (where both interlaced fields correspond to a unique frame).

== 576p50 ==
With doubled temporal resolution, '''576p50''' is considered ''enhanced-definition television'' ([[Engineering:Enhanced-definition television|EDTV]]), regardless of the image being scaled the same way as an interlaced frame. In some countries, such as {{wipe|Australia}}, the 576p resolution standard is technically considered high-definition<ref>{{Cite web|url=https://www.goodgearguide.com.au/article/362585/buying_guide_tvs/?pp=6|title=Buying guide: TVs - Good Gear Guide Australia|website=www.goodgearguide.com.au}}</ref><ref>{{cite web |title=Digital Television - Who's Buying it? Chapter 4: Content and quality |url=https://www.aph.gov.au/Parliamentary_Business/Committees/House_of_representatives_Committees?url=cita/digitaltv/report/chapter4.pdf |website=Parliament of Australia |page=134}}</ref> and was in use by the Special Broadcasting Service (SBS TV), eventually replaced by [[Engineering:720p|720p]] for its high-definition [[Engineering:Digital subchannel|subchannel]]; SBS later changed to using [[Engineering:1080i|1080i]]. The Seven Network initially used 576p for its high-definition subchannel, but now uses [[Engineering:1080i|1080i]] instead.

The frames are doubled (from a 25 frame source) on broadcast (to avoid flicker) for display devices that lack any kind of frame doubling ability. Widescreen [[Engineering:16:9 aspect ratio|16:9]] material has only the width scaled down to fit 720 pixels instead of an unscaled 1024 width.

== See also ==
* [[Engineering:Enhanced-definition television|Enhanced-definition television]] (EDTV)
* [[Engineering:List of common resolutions|List of common resolutions]]
* [[8K resolution|4320p]], [[4K resolution|2160p]], [[Engineering:1080p|1080p]], [[Engineering:1080i|1080i]], [[Engineering:720p|720p]], [[576i|576i]], [[Engineering:480p|480p]], [[Engineering:480i|480i]], [[Engineering:Low-definition television|360p]], [[Engineering:Low-definition television|288p]], [[Engineering:Low-definition television|240p]]
* [[Graphics display resolution#1024 × 576, 1024 × 600 (WSVGA)|WSVGA]], the associated computer display resolution

== References ==
{{reflist}}

{{Video formats}}
{{TV resolution}}

[[Category:Video formats]]

{{Sourceattribution|576p}}