480p is the shorthand name for a video display resolution. The p stands for progressive scan, i. Progressive or noninterlaced scanning is a method for displaying storing or transmitting Moving images in which all the lines of each frame are drawn in e. non-interlaced. The 480 denotes a vertical resolution of 480 vertical scanning lines, usually with a horizontal resolution of 640 pixels and 4:3 aspect ratio or a horizontal resolution of 854 pixels and 16:9 aspect ratio. In Digital imaging, a pixel ( pict ure el ement is the smallest piece of information in an image The aspect ratio of an Image is its width divided by its height The frame rate (hertz) is usually 30 or 60 progressive frames per second and can be given explicitly after the letter. Frame rate, or frame frequency, is the measurement of the Frequency (rate at which an imaging device produces unique consecutive images called frames The The hertz (symbol Hz) is a measure of Frequency, informally defined as the number of events occurring per Second. The frames are displayed progressive as opposed to interlaced. For the method of incrementally displaying Raster graphics, see Interlace (bitmaps.
480p does not qualify as high-definition television (HDTV); it is considered Enhanced-definition television (EDTV). High-definition television (HDTV is a Digital television Broadcasting system with higher resolution than traditional television systems (standard-definition Enhanced-definition television, extended-definition television, or EDTV is a CEA marketing shorthand term for certain Digital television
480p24 and 480p30
The ATSC digital television standards define 480p with either 704x480 (non-square sampling) or 640x480 (square sampling) pixel resolutions, at 24, 30, or 60 progressive frames per second. Digital television (DTV is the sending and receiving of moving images and sound by discrete ( digital) signals in contrast to the analog signals used by A 16:9 aspect ratio is defined at 720x480 pixels, using non-square, anamorphic sampling. Anamorphic format is a term that can be used either for the Cinematography technique of capturing a Widescreen picture on standard 35 mm film, or other
Both 480p24 and 480p30 are more common in countries that use or have used the interlaced NTSC system like North America and Japan (these formats are somewhat compatible with that system, when used to broadcast progressive film content). NTSC ( National Television System Committee) is the Analog television system used in the United States, Canada, Japan, Mexico
480p60 (480p59. 94)
With doubled temporal resolution, 480p60 is considered enhanced-definition television (EDTV). Temporal resolution refers to the Precision of a Measurement with respect to Time. Enhanced-definition television, extended-definition television, or EDTV is a CEA marketing shorthand term for certain Digital television It can be transported by both major digital television formats, ATSC and DVB. Digital television (DTV is the sending and receiving of moving images and sound by discrete ( digital) signals in contrast to the analog signals used by For the chemical compound see Divinylbenzene. Digital Video Broadcasting ( DVB) is a suite of internationally accepted
SMPTE 293M defines a 480p59. 94 standard with twice the data rate of Rec. 601, using 720x480 active pixels. ITU-R Rec. 601 is the specification for component digital interlaced video(480i) commonly used in standard definition television production. 480i is the shorthand name for a video mode The i, which is sometimes uppercase stands for Interlaced, the 480 for a vertical frame resolution
See also
Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic