576p
Encyclopedia
576p is the shorthand name for a video display resolution. 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 pixel
s. The frame rate
can be given explicitly after the letter.
(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
.
). 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) (16÷9 the format has aspect ratio 1024:576), eventually replaced by 720p
for its high-definition subchannel
. The Seven Network
initially used 576p for its high-definition subchannel, which now uses 1080i
instead.
Progressive scan
Progressive scanning is a way of displaying, storing, or transmitting moving images in which all the lines of each frame are drawn in sequence...
, i.e. non-interlaced, the 576 for a vertical resolution of 576 lines, usually with a horizontal resolution of 720 or 704 pixel
Pixel
In digital imaging, a pixel, or pel, is a single point in a raster image, or the smallest addressable screen element in a display device; it is the smallest unit of picture that can be represented or controlled....
s. The frame rate
Frame rate
Frame rate is the frequency at which an imaging device produces unique consecutive images called frames. The term applies equally well to computer graphics, video cameras, film cameras, and motion capture systems...
can be given explicitly after the letter.
576p25
In other words, standard-definition televisionStandard-definition television
Sorete-definition television is a television system that uses a resolution that is not considered to be either enhanced-definition television or high-definition television . The term is usually used in reference to digital television, in particular when broadcasting at the same resolution as...
(SDTV) with a frame rate
Frame rate
Frame rate is the frequency at which an imaging device produces unique consecutive images called frames. The term applies equally well to computer graphics, video cameras, film cameras, and motion capture systems...
of 25 hertz
Hertz
The hertz is the SI unit of frequency defined as the number of cycles per second of a periodic phenomenon. One of its most common uses is the description of the sine wave, particularly those used in radio and audio applications....
. It can be used on analog PAL
PAL
PAL, short for Phase Alternating Line, is an analogue television colour encoding system used in broadcast television systems in many countries. Other common analogue television systems are NTSC and SECAM. This page primarily discusses the PAL colour encoding system...
or SECAM
SECAM
SECAM, also written SÉCAM , is an analog color television system first used in France....
systems (as a 576i signal with both interlaced fields corresponding to a unique frame). PALplus
PALplus
PALplus is an extension of the PAL analogue broadcasting system for transmitting 16:9 programs without sacrificing vertical resolution. It followed experiences with the HD-MAC and D2-MAC, standards that were incompatible with existing receivers but featured a 16:9 aspect ratio...
supports it via a "movie" mode signal flag. It can also be transported by both major digital television
Digital television
Digital television is the transmission of audio and video by digital signals, in contrast to the analog signals used by analog TV...
formats, ATSC and DVB and on DVD
DVD
A DVD is an optical disc storage media format, invented and developed by Philips, Sony, Toshiba, and Panasonic in 1995. DVDs offer higher storage capacity than Compact Discs while having the same dimensions....
.
576p50
With doubled temporal resolution, 576p50 is considered enhanced-definition television (EDTVEdTV
EDtv is a 1999 American comedy film directed by Ron Howard. An adaptation of the Quebec film Louis 19, le roi des ondes , it stars Matthew McConaughey, Jenna Elfman, Woody Harrelson, Ellen DeGeneres, Martin Landau, Rob Reiner, Sally Kirkland, Elizabeth Hurley, Clint Howard, and Dennis Hopper.The...
). In some countries, such as Australia, the 576p resolution standard is technically considered high-definition and was in use by the Special Broadcasting Service
Special Broadcasting Service
The Special Broadcasting Service is a hybrid-funded Australian public broadcasting radio and television network. The stated purpose of SBS is "to provide multilingual and multicultural radio and television services that inform, educate and entertain all Australians and, in doing so, reflect...
(SBS TV) (16÷9 the format has aspect ratio 1024:576), eventually replaced by 720p
720p
720p is the shorthand name for 1280x720, a category of High-definition television video modes having a resolution of 1080 or 720p and a progressive scan...
for its high-definition subchannel
Digital subchannel
In broadcasting, digital subchannels are a means to transmit more than one independent program at the same time from the same digital radio or digital television station on the same radio frequency channel. This is done by using data compression techniques to reduce the size of each individual...
. The Seven Network
Seven Network
The Seven Network is an Australian television network owned by Seven West Media Limited. It dates back to 4 November 1956, when the first stations on the VHF7 frequency were established in Melbourne and Sydney.It is currently the second largest network in the country in terms of population reach...
initially used 576p for its high-definition subchannel, which now uses 1080i
1080i
1080i is the shorthand name for a high-definition television mode. The i means interlaced video; 1080i differs from 1080p, in which the p stands for progressive scan. The term 1080i assumes a widescreen aspect ratio of 16:9, implying a frame size of 1920×1080 pixels...
instead.
See also
- 576i576i576i is a standard-definition video mode used in PAL and SECAM countries. In digital applications it is usually referred to as "576i", in analogue contexts it is often quoted as "625 lines"...
- WSVGA, the associated computer display resolution
- Enhanced-definition televisionEnhanced-definition televisionEnhanced-definition television, or extended-definition television, is a United States Consumer Electronics Association marketing shorthand term for certain digital television formats and devices...
(EDTV)