480p is the shorthand name for a family of video display resolutions. The p stands for progressive scan, i.e. non-interlaced. The 480 denotes a vertical resolution of 480 pixels, usually with a horizontal resolution of 640 pixels and 4:3aspect ratio (480 × 4⁄3 = 640) or a horizontal resolution of 854 or less (848 should be used for mod16 compatibility)[1] pixels for an approximate 16:9 aspect ratio (480 × 16⁄9 = 853.3). Since a pixel count must be a whole number, in Wide VGA displays it is generally rounded up to 854 to ensure inclusion of the entire image. The frames are displayed progressively as opposed to interlaced. 480p was used for many early plasma televisions.[2][3]Standard definition has always been a 4:3 aspect ratio with a pixel resolution of 720 × 480 at 60 Hz for NTSC regions, and 720 or 768 × 576 for PAL regions (1024 wide for widescreen displays). However, standard definition defines a 15.7k Hz horizontal scanrate, which means that interlacing has to be used for those resolution modes. The lowercase letter "p" in 480p stands for progressive, so the two must not be confused.
The ATSCdigital television standards define 480p with 640×480p (4:3) pixel resolutions, at 24, 30, or 60 frames per second. When 480p30 is broadcast on air, it is frame doubled then interlaced to 480i60. The spatial resolution hasn't changed, but a 480p video stored in digital RGB format is transcoded and modulated when broadcast on the analog television network. 24 fps however, needs to be processed using the 3:2 pulldown technique to be broadcast to TVs, even if the spatial resolution in the stored media is the same as the output resolution.
Resolutions
Standard
Resolution
Aspect ratio
Notes
480p (4:3)
640 × 480p
4:3
The most common 480p aspect ratio, typically used for cameras and video formats. (See also: VGA.)
480p (3:2)
720 × 480p
3:2
The same aspect ratio used on the iPod Touch 4 and is also used anamorphically on NTSC-region DVD video.
^AfterDawn.com. "480p - AfterDawn: Glossary of technology terms & acronyms".
^CNET - Glossary - 480p Archived 2009-07-09 at the Portuguese Web Archive
February 05, 2023
480p, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor, april, 2009, learn, w. This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources 480p news newspapers books scholar JSTOR April 2009 Learn how and when to remove this template message 480p is the shorthand name for a family of video display resolutions The p stands for progressive scan i e non interlaced The 480 denotes a vertical resolution of 480 pixels usually with a horizontal resolution of 640 pixels and 4 3 aspect ratio 480 4 3 640 or a horizontal resolution of 854 or less 848 should be used for mod16 compatibility 1 pixels for an approximate 16 9 aspect ratio 480 16 9 853 3 Since a pixel count must be a whole number in Wide VGA displays it is generally rounded up to 854 to ensure inclusion of the entire image The frames are displayed progressively as opposed to interlaced 480p was used for many early plasma televisions 2 3 Standard definition has always been a 4 3 aspect ratio with a pixel resolution of 720 480 at 60 Hz for NTSC regions and 720 or 768 576 for PAL regions 1024 wide for widescreen displays However standard definition defines a 15 7k Hz horizontal scanrate which means that interlacing has to be used for those resolution modes The lowercase letter p in 480p stands for progressive so the two must not be confused Contents 1 ATSC progressive mode standards 2 Resolutions 3 See also 4 ReferencesATSC progressive mode standards EditThe ATSC digital television standards define 480p with 640 480p 4 3 pixel resolutions at 24 30 or 60 frames per second When 480p30 is broadcast on air it is frame doubled then interlaced to 480i60 The spatial resolution hasn t changed but a 480p video stored in digital RGB format is transcoded and modulated when broadcast on the analog television network 24 fps however needs to be processed using the 3 2 pulldown technique to be broadcast to TVs even if the spatial resolution in the stored media is the same as the output resolution Resolutions EditStandard Resolution Aspect ratio Notes480p 4 3 640 480p 4 3 The most common 480p aspect ratio typically used for cameras and video formats See also VGA 480p 3 2 720 480p 3 2 The same aspect ratio used on the iPod Touch 4 and is also used anamorphically on NTSC region DVD video 480p 16 10 768 480p 16 10 480p 5 3 800 480p 5 3 This resolution is used on the Samsung Galaxy S II 480p 16 9 848 480p 16 9 The mod16 compatible 480p 16 9 854 480p 16 9 The resolution 854 480 is used when 480p is selected on a widescreen YouTube video 480p 1 85 1 888 480p 1 85 1 The unscaled Academy format 480p 2 1 960 480p 2 1 The double squared 480p 480p 18 10 864 480p 18 10 See also Edit Television portalEnhanced definition television EDTV List of common resolutions 4320p 2160p 1080p 1080i 720p 576p 576i 480i 360p 240p Display ResolutionReferences Edit Best Practices For Multi Device Transcoding Knowledge Center knowledge kaltura com Retrieved 2016 09 12 AfterDawn com 480p AfterDawn Glossary of technology terms amp acronyms CNET Glossary 480p Archived 2009 07 09 at the Portuguese Web Archive Retrieved from https en wikipedia org w index php title 480p amp oldid 1135863576, wikipedia, wiki, book, books, library,
