Ultra High Deginition, or Super Hi-Vision
For Digital Future | July 24, 2008
The technology UHDV provides a quality of which is 16 times higher than HD (1920 x 1080), and up to 75 times higher than PAL (768 x 576), as the technology UHDTV has over 4,000 horizontal scanning lines , And a resolution of 7680 x 4320, ie 33 million pixels, compared to the 1080 lines of HDTV and 2 million pixels, which greatly improves the picture quality. At the sound is also experiencing a remarkable improvement, with a 22.2 Surround System (10 speakers at the half, 9 at the senior level, 3 a low level, and 2 for low-impact).
One minute of uncompressed video UHDV consumes about 194 gigabytes (although approximately 25 terabytes of storage for 2 hours). If the video HDTV (1920 × 1080p60) has a bitrate of 60 Mbit / s, using the MPEG-2 compression, then a video that is 4 times the amount of pixels at the top and breadth, is going to require a bitrate 16 times that amount, which would lead to 100 GB for 18 minutes of UHDV or 6 GB per minute.
The Japanese public television NHK, is experimenting with this technology with which it could operate in 2015. For now, the project has a funding of 2'1 million dollars. The main problem is the transmission of broadcasts to this quality because it requires 21GHz bandwidth, when a television channel analog requires 5MHz.
Topics: TV, Technology |
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