Ultra HDTV (also known as “Super Hi-Vision” or “Ultra HD”), is an experimental video format conceptualized by the Japanese public broadcasting network, NHK.
An Ultra HD is 4x wider and 4x higher than a normal HDTV screen, which in effect produces a spectacular 7,680 x 4,320 pixels (33,177,600 pixels in total). This is about 16x the pixel resolution than a standard HD screen. However, several health concerns have been raised for this.
In addition to the video quality, the sound quality has improved vastly. 24 channels of audio can be used with 24 speakers, producing a difference comparable to the Ultra HD video resolution. Currenly, only 3 cameras are able to capture video in Ultra HD format for about 20 minutes (4 Terrabytes worth) in a single day. However, it’s wise to remember that the current infrastructure is not designed to cope with Ultra HDTV requirements and in the coming years, many of these current challenges will be addressed.