Typically, it is a typographical error in which the author is referring to the 720p HDTV format. The term assumes a widescreen aspect ratio of 16:9, thus implying a resolution of 1280×720 px (0.9 megapixels).ħ20i (720 lines interlaced) is an erroneous term found in numerous sources and publications. When broadcast at 60 frames per second, 720p features the highest temporal resolution possible under the ATSC and DVB standards. The number 720 stands for the 720 horizontal scan lines of image display resolution (also known as 720 pixels of vertical resolution).
All major HD broadcasting standards (such as SMPTE 292M) include a 720p format, which has a resolution of 1280×720p. Video resolution This chart shows the most common display resolutions, 720p being one of the 16:9 formats shown in blue.ħ20p is a progressive HD signal format with 720 horizontal lines/1280 columns and an aspect ratio (AR) of 16:9, normally known as widescreen HD (1.78:1).
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