1080p can be significantly better that 1080i, 720p, 480p or 480i. But, (there’s always a "but") there are qualifications. The most obvious qualification: Is this performance improvement manifest under real world viewing conditions?
從視覺的角度分析 1080p 的高解析度與高更新頻率，在實際的觀看情境是否比 1080i、720p、480p 或 480i 好。
Horizontal Resolution (NTSC video)
In the following article I would like to give you the tools necessary not only to understand our current NTSC video system, but also gain the ability to intelligently approach the new and upcoming video formats.
DVD (also known as "Digital Versatile Disc" or "Digital Video Disc") is an optical disc storage media format that can be used for data storage, including movies with high video and sound quality. DVDs resemble compact discs as their physical dimensions are the same (120 mm (4.72 inches) or occasionally 80 mm (3.15 inches) in diameter) but they are encoded in a different format and at a much higher density. The official DVD specification is maintained by the DVD Forum.
VideoCD, View CD, Compact Disc digital video) is a standard digital format for storing video on a Compact Disc. VCDs are playable in dedicated VCD players, nearly all personal computers, most modern DVD-Video players, and some video game consoles.
The laserdisc (LD) was the first commercial optical disc storage medium, and is used primarily for the presentation of movies.
High-definition television (HDTV) is a television broadcasting system with a significantly higher resolution than traditional formats (NTSC, SECAM, PAL) allow. Except for early analog formats in Europe and Japan, HDTV is broadcast digitally, and therefore its introduction sometimes coincides with the introduction of digital television (DTV): this technology was first introduced in the USA during the 1990s, by the Digital HDTV Grand Alliance (grouping together AT&T, General Instrument, MIT, Philips, Sarnoff, Thomson, and Zenith)[1].
The display resolution of a digital television or computer display can be an ambiguous term especially as displayed resolution is controlled by different factors in picture-tube (CRT) and flat panel or projection displays using fixed picture-element (pixel) arrays.
list of image resolutions sorted by the horizontal resolution in ascending numerical order.
