Content deleted Content added
No edit summary |
Alexeyevitch (talk | contribs) fmt |
||
| (21 intermediate revisions by 15 users not shown) | |||
Line 1:
{{More citations needed|date=April 2023}}
{{Use mdy dates|date=March 2024}}
▲{{short description|Video mode}}
[[File:Definitions of TV standards.jpg|thumb|upright=1.3|TV standards through 1080p. The red-tinted image shows [[576i]] or [[576p]] resolution. The blue-tinted image shows [[720p]] resolution, an [[High-definition television|HDTV]] level of resolution. The full-color image shows 1080 resolution.]]
'''1080p''' (1920 × 1080 [[Progressive scan|progressive]]ly displayed [[pixel]]s; also known as '''Full HD''' or '''FHD''', and [[Rec. 709|BT.709]]) is a set of [[High-definition television|HDTV]] [[high-definition video]] modes characterized by 1,920 pixels displayed across the screen horizontally and 1,080 pixels down the screen vertically;<ref>{{cite web |author=Robert Silva |title=720p vs 1080p – A Comparison |publisher=Lifewire.com |date=
1080p video signals are supported by [[ATSC standards]] in the United States and [[DVB]] standards in Europe. Applications of the 1080p standard include television broadcasts, [[Blu-ray]] Discs, [[smartphone]]s, Internet content such as
== Broadcasting standards ==
Any screen device that advertises 1080p typically refers to the ability to accept 1080p signals in native resolution format, which means there are a true 1920 pixels in width and 1080 pixels in height, and the display is not over-scanning, under-scanning, or reinterpreting the signal to a lower resolution.{{Citation needed|date=October 2018}} The [[HD ready|HD ready 1080p]] logo program, by [[DigitalEurope
1080p50/p60 production format requires a whole new range of studio equipment including cameras, storage and editing systems,<ref>{{cite web|url=http://tech.ebu.ch/docs/events/ibc10-ebutechnical/presentations/ebu_ibc10_hoffmann.pdf|title=Interoperability and File-based production for HDTV: How far away is 1080p/50,60 from mainstream production?|publisher=EBU|access-date=
=== ATSC ===
Line 15 ⟶ 16:
=== DVB ===
In Europe, 1080p25 signals have been supported by the [[DVB|DVB suite]] of broadcasting standards. The 1080p50 format is considered to be a future-proof production format and, eventually, a future broadcasting format.<ref name="EBU_TR115"/> 1080p50 broadcasting should require the same bandwidth as 1080i50 signal and only 15–20% more than that of 720p50 signal due to increased compression efficiency,<ref name="EBU_No1_1080p50" /> though 1080p50 production requires more bandwidth or more efficient [[codec]]s such as [[JPEG 2000]], high-bitrate [[MPEG-2]], or [[Advanced Video Coding|H.264/AVC]] and [[High Efficiency Video Coding|HEVC]].<ref name="EBU_TR14"/><ref name=EBU_TR008>{{cite web|url=http://tech.ebu.ch/docs/techreports/tr008.pdf|title=Technical Report 008: HDTV Contribution Codecs|date=March 2010|publisher=EBU|access-date=
EBU requires that legacy MPEG-4 AVC decoders should avoid crashing in the presence of SVC or 1080p50 (and higher resolution) packets.<ref name= "EBU-TECH3333" /> SVC enables [[forward compatibility]] with 1080p50 and 1080p60 broadcasting for older MPEG-4 AVC receivers, so they will only recognize baseline SVC stream coded at a lower resolution or frame rate (such as 720p60 or 1080i60) and will gracefully ignore additional packets, while newer hardware will be able to decode full-resolution signal (such as 1080p60).
In June 2016, EBU
== Resolutions ==
In practice, 1080p typically refers to a 1920 × 1080p raster with a 16:9 [[Aspect ratio (image)|picture aspect ratio]]. The following is a list of other resolutions with a picture height of 1080 lines that are sometimes referred as 1080p.{{citation needed|date=February 2019}}
[[File:Copsmjsjsjsjk.png|thumb|A comparison of SVGA, XGA+ and Full HD]]
{| class="wikitable sortable"
|-
Line 36 ⟶ 38:
|-
| Vertical || 1080 × 1920p || {{ntsh|{{#expr:9/16}}}} 9:16
|-
| YouTube 1080p || 608 x 1080p || {{ntsh|{{#expr:9/16}}}} 9:16
|}
Line 42 ⟶ 46:
=== Broadcasts ===
In the United States, 1080p over-the-air broadcasts are currently available in select stations in some cities in the US via ATSC 3.0 multiplex stations where as ATSC 3.0 is currently rolling out throughout the U.S. The majority of the stations that broadcast at 1080p are CBS and NBC stations and affiliates. All other stations do not broadcast at 1080p and usually broadcast at 720p60 (including when simulcasting in ATSC 3.0) or 1080i60 (outside of ATSC 3.0) encoded with MPEG-2. There is also technical restrictions with ATSC 3.0 multiplex stations that prevent stations from airing at 1080p. While converting to ATSC 3.0 is voluntary by TV Stations, there is no word when any of the major networks will consider airing at 1080p in the foreseeable future on a national scale, although they are required to broadcast ATSC signals for at least five years thereafter. However, satellite services (e.g., [[DirecTV]], XstreamHD and [[Dish Network]])
For material that originates from a progressive scanned 24 frame/s source (such as film), [[MPEG-2]] lets the video be coded as 1080p24, irrespective of the final output format. These progressively-coded frames are tagged with metadata (literally, fields of the PICTURE header) instructing a decoder how to perform a [[Telecine#2:3 pulldown|3:2 pulldown]]<!--2:3 and 3:2 are the same concept, but 3:2 is shifted by one frame.--> to interlace them. While the formal output of the MPEG-2 decoding process from such stations is 1080i60, the actual content is coded as 1080p24 and can be viewed as such (using a process known as [[Telecine|inverse telecine]]) since no information is lost even when the broadcaster performs the 3:2 pulldown.<ref>{{cite web|url=http://www.doom9.org/ivtc-tut.htm |title=Force Film, IVTC, and Deinterlacing – what is DVD2AVI trying to tell you and what can you do about it |publisher=Doom9.org |date=
In June 2016,
=== Blu-ray Disc ===
Line 55 ⟶ 59:
|date=May 2005
|author=Blu-ray Disc Association
|access-date=
|archive-date=
}}</ref>
=== Smartphones ===
[[Smartphone]]s with 1080p Full HD display have been available on the market since 2012.<ref>{{Cite web |date=
=== Internet content ===
Several websites, including
=== Consumer televisions and projectors ===
As of 2012, most consumer televisions being sold provide 1080p inputs, mainly via [[HDMI]], and support full high-definition resolutions. 1080p resolution is available in all types of television, including [[plasma display|plasma]], [[LCD television|LCD]], [[Digital Light Processing|DLP]] front and rear projection and [[LCD projector|LCD projection]]. For displaying film-based 1080i60 signals, a scheme called 3:2 pulldown reversal ([[Telecine|reverse telecine]]) is beginning to appear in some newer 1080p displays, which can produce a true 1080p quality image from film-based 1080i60 programs. Similarly, 25fps content broadcast at 1080i50 may be deinterlaced to 1080p content with no loss of quality or resolution.
AV equipment manufacturers have adopted the term ''Full HD'' to mean a set can display all available HD resolutions up to 1080p. The term is misleading, however, because it does not guarantee the set is capable of rendering digital video at all frame rates encoded in source files with 1920 X 1080 pixel
=== Computer monitors ===
Most widescreen [[cathode-ray tube]] (CRT) and [[liquid-crystal display]] (LCD) monitors can [[Native resolution|natively display]] 1080p content. For example, widescreen [[Graphics display resolution#1920 × 1200 (WUXGA)|WUXGA]] monitors support 1920 × 1200 resolution, which can display a pixel for pixel reproduction of the 1080p (1920 × 1080) format. Additionally, many 23, 24, and {{convert|27|in|mm|adj=on}} widescreen LCD monitors use 1920 × 1200 as their native resolution; 30 inch displays can display beyond 1080p at up to 2560 × 1600 ([[Graphics display resolution#1920 × 1200 (WUXGA)|1600p]]). Many 27" monitors have native resolutions of 2560 × 1440 and hence operate at [[1440p]].
====
[[Sony]] has their first and formerly [[Vaio
=== Video game consoles ===
=== Cameras ===
Many cameras{{emdash}}professional and consumer still, action and video cameras, including [[Digital single-lens reflex camera|DSLR]] cameras{{emdash}}and other devices with built-in cameras such as
== See also ==
Line 101 ⟶ 105:
== External links ==
* [http://www.audioholics.com/education/display-formats-technology/1080p-and-the-acuity-of-human-vision 1080p and the Acuity of Human Vision] Audioholics Home Theater Magazine.
* [http://www.hometheaterhifi.com/technical-articles-and-editorials/technical-articles-and-editorials/high-definition-1080p-tv-why-you-should-be-concerned.html High Definition 1080p TV: Why You Should Be Concerned]. Secrets of Home Theater and High Fidelity.
* [https://web.archive.org/web/20140302111409/http://editorials.teamxbox.com/xbox/1544/The-Facts-and-Fiction-of-1080p/p1/ The Facts and Fiction of 1080p].
* [http://tech.ebu.ch/docs/tech/tech3299.pdf High Definition (HD) Image Formats for Television Production] ([[European Broadcasting Union|EBU]] technical publication). December 2004.
| |||