This article contains information about a scheduled or expected future product. It may contain preliminary or speculative information, and may not reflect the final version of the product.

Super Hi-Vision, also known as Ultra High Definition Video or UHDV is a digital video format, currently proposed by NHK of Japan. Wikipedia does not have an article with this exact name. ... Video is the technology of electronically capturing, recording, processing, storing, transmitting, and reconstructing a sequence of still images which represent scenes in motion. ... NHK (日本放送協会, Nippon Hōsō Kyōkai), or the Japan Broadcasting Corporation, is Japans public broadcaster. ...

UHDV resolution shown in comparison to other digital video formats.

The new format with a resolution of 7,680 × 4,320 pixels is four times as wide and four times as high (for a total of 16 times the pixel resolution) as existing HDTV, which has a maximum resolution of 1920 × 1080 pixels. Because this format is highly experimental, NHK researchers had to build their own prototype from scratch. In the system demonstrated in September 2003 they used an array of 16 HDTV recorders to capture the 18-minute-long test footage. The camera itself was built with four 2.5 inch (64 mm) CCDs. Image File history File links UHDV.svg‎ Ultra High Definition Video shown in comparison with other popular digital video formats. ... Image File history File links UHDV.svg‎ Ultra High Definition Video shown in comparison with other popular digital video formats. ... This example shows an image with a portion greatly enlarged, in which the individual pixels are rendered as little squares and can easily be seen. ... The display resolution of a digital television or computer display is the number of pixels (or maximal image resolution) that can be displayed on the screen, usually given as a product of the number of columns (horizontal, X) and lines (vertical, Y) making up the aspect ratio. ... Projection screen in a home theater, displaying a high-definition television image. ... A specially developed CCD used for ultraviolet imaging in a wire bonded package. ...

Capacity

18 minutes of uncompressed UHDV footage consumes 3.5 terabytes of data and 1 minute of footage consumes 194 gigabytes. If 1920×1080p60 high definition video has a bitrate of 60 Mbit/s using current MPEG-2 compression technologies, then 4 times the width and 4 times the height will roughly require 16 times the bitrate. That would translate to 100 GB for 18 minute of UHDV, or 6 GB per minute. This would mean that a 12cm Holographic Versatile Disc at 3 micrometer separation of different colored tracks (with a capacity of 3.9TB) would be able to store roughly 11 hours of MPEG-2 compressed UHDV, compared to the 18 and a half minutes of uncompressed UHDV. Additionally, an eight layer Blu-ray disc (with a capacity of 200GB) would be able to store approximately 36 minutes of MPEG-2 compressed UHDV, compared to the 1 minute of uncompressed UHDV. A Protein Coated Disc would probably suit UHDTV better. A terabyte is a unit of measurement in computers. ... A gigabyte (symbol GB) is a unit of measurement in computers of one thousand million bytes (the same as one billion bytes in the short scale usage). ... MPEG-2 is a standard for the generic coding of moving pictures and associated audio information [1]. It is widely used around the world to specify the format of the digital television signals that are broadcast by terrestrial (over-the-air), cable, and direct broadcast satellite TV systems. ... Picture of a HVD by Optware. ... MPEG-2 is a standard for the generic coding of moving pictures and associated audio information [1]. It is widely used around the world to specify the format of the digital television signals that are broadcast by terrestrial (over-the-air), cable, and direct broadcast satellite TV systems. ... Blu-ray discs Blu-ray Disc is a next-generation optical disc format jointly developed by a group of leading consumer electronics and PC companies called the Blu_ray Disc Association (BDA), which succeeds the Blu_ray Disc Founders (BDF). ... Protein-Coated Disc (PCD) is a theoretical optical disc technology currently being developed by Professor V Renugopalakrishnan of Harvard Medical School. ...

Preliminary reactions

Preliminary response of the UHDV was somewhat negative. This was not because of the lack of the promised technology, but more in the fact that it was too good. Some viewers got motion sickness when viewing the video image because the image was so close to reality.^[1] Motion sickness is a condition in which the endolymph (the fluid found in the semicircular canals of the inner ears) becomes stirred up, causing confusion between the difference between apparent perceived movement (none or very little), and actual movement. ...

In November 2005 NHK demonstrated a live relay of Super Hi-Vision (UHDV) program over a distance of 260 km by a fiberoptic network. 24 gigabit speed was achieved using DWDM (dense wavelength division multiplex) method with a total of 16 different wavelength signals. A gigabit is a unit of information or computer storage, abbreviated Gbit or sometimes Gb. ... The original version of this article was based on FOLDOC, with permission In telecommunications wavelength division multiplexing (WDM) is a technology which multiplexes several optical carrier signals on a single optical fibre by using different wavelengths (colours) of laser light to carry different signals. ...

References

1. ^ New York Times

External links

• NHK 2005 article on Super Hi-Vision and its home application
• NHK Digital Broadcasting Technology
• UHDV at Whatis.com
• Ultra high resolution television (UHDV) prototype
• The New York Times: Just Like High-Definition TV, but With Higher Definition
• Japan demonstrates next-gen TV broadcast
• Europe gets glimpse of HD future
• HDTV Org Independent guide to High Definition TV