Specifications

Crestron DigitalMedia™ Design Guide
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Glossary
Video Resolution Terminology
1080i
An HDTV standard that specifies an interlaced resolution of 1920 x 1080.
1080p
1080p refers to the 1920x1080 “progressive scan” HDTV format. 1080p is currently the highest resolution in the HDTV
standard.
480i
480 interlaced; a form of standard definition digital television (SDTV) that approximates the quality of analog television but not
considered high definition television (HDTV). Even though the native resolution of DVDs is 480p, they are viewed at 480i on an
NTSC analog television.
480p
480 progressive; a form of standard definition digital television (SDTV) comparable to VGA computer displays but not
considered high definition television (HDTV), though 480p is discernibly cleaner and slightly sharper than analog television.
The native resolution of DVD is 480p, but that resolution can be seen only if a DVD player outputs a progressive scan signal
and the DTV has progressive scan or component video inputs; it is also known as EDTV.
720p
720 progressive; one of two currently used formats designated as high definition television in the ATSC DTV standard, this
technology comprises 720 vertical pixels and 1,280 horizontal pixels. The
p stands for progressive, as opposed to interlaced,
scanning, which is used in the other accepted HDTV standard, known as 1080i. Contrary to myth, 720p is not inferior to 1080i;
720p has fewer lines but also has the advantages of progressive scanning and a constant vertical resolution of 720 lines,
making it better able to handle motion.
Deep Color
A color depth standard associated with high definition TVs and video gear that include HDMI 1.3 connections. The Deep Color
standard supports 10-bit,12-bit and 16-bit color depths, up from 8-bit, which is the current standard for consumer video.
DigitalMedia supports all but the 16-bit color depth. All earlier versions of HDMI just supported 8-bit color. (Because video
is based on three primary colors, you'll sometimes see Deep Color described as 30-bit, 36-bit and 48-bit.) A higher color bit
depth enables finer gradations between different shades of the same color, for smoother gradients and reduced color banding.
Deep Color gives TVs the potential to display billions rather than millions of colors, but in order to see that improvement, the
entire video production chain has to use it (camera, editing, format, player, display).
Down-convert
In DTV, the conversion from a higher resolution input signal number to a lower one. For example, some DTV receivers can be
set to down-convert an HDTV 1080i signal to a standard 480i signal that any TV can display.