Editing 576p

{{Short description|Shorthand name for a video display resolution}}
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{{Merge to|576i|date=January 2025}}

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

[[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 [[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 ([[16:9 aspect ratio|16:9]] [[Pixel aspect ratio|square pixel]] format)
* 960 x 576p
* 936 x 576p (based on 960 x 576p, blanking the first and last 12 pixels of each line)
* 768 x 576p ([[Fullscreen (aspect ratio)|4:3]] square pixel format)
* 720 x 576p (4:3 [[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 [[Standard-definition television|standard definition]] for [[PAL#PAL region|PAL regions]]. It can be transported by both major [[digital television]] formats ([[ATSC standards|ATSC]] and [[DVB]]) and on [[DVD-Video]] (if limited to 25&nbsp;fps). It is defined as a valid ''[[enhanced-definition television]]'' resolution in the [[Society of Motion Picture and Television Engineers|SMPTE]] standard [[SMPTE 344M|344M]].<ref>{{cite book |last=Poynton |first=Charles |url=https://books.google.com/books?id=rsEwE2X3cFAC&dq=%22SMPTE+344M%22+-wiki&pg=PA130 |title=Digital Video and HD: Algorithms and Interfaces |year=2003 |isbn=9781558607927}}</ref> SMPTE 344M defines a 576p50 standard with twice the data rate of [[Rec. 601|BT.601]], using {{resx|704 × 576}} active pixels with {{resx|16 × 576}} horizontal blanking pixels.

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

== 576p50 ==
With doubled temporal resolution, '''576p50''' is considered ''enhanced-definition television'' ([[Enhanced-definition television|EDTV]]), regardless of the image being scaled the same way as an interlaced frame. In some countries, such as [[Australia]], the 576p resolution standard is technically considered high-definition<ref>{{cite web |title=Buying guide: TVs - Good Gear Guide Australia |url=https://www.goodgearguide.com.au/article/362585/buying_guide_tvs/?pp=6 |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 [[720p]] for its high-definition [[digital subchannel|subchannel]]; SBS later changed to using [[1080i]]. The [[Seven Network]] initially used 576p for its high-definition subchannel, but now uses [[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 [[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 ==
{{Portal|Television}}

* [[Enhanced-definition television]] (EDTV)
* [[List of common display resolutions]]
* [[8K resolution|4320p]], [[4K resolution|2160p]], [[1080p]], [[1080i]], [[720p]], [[576i]], [[480p]], [[480i]], [[Low-definition television|360p]], [[Low-definition television|288p]], [[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]]