I have seen "Full Spec 8K Super Hi-Vision" which realizes 4 times the information amount of 4K TV + further high image quality · high sound quality with NHK Institute of Public Access 2016

Publish the technology developed by NHK Broadcasting Technology Laboratories to the publicNHK Giken Open 2016It is open to the public from May 26 th (Thu) 20 th to 29 th (Sun) in 2016. Among them, in addition to having 4 times the high definition of 4K television, it is possible to realize even higher image quality and higher sound quality "Full spec 8K Super Hi-VisionI was able to experience it in practice, so I decided to look.

NHK Giken Public 2016 ~ Please feel the evolving broadcasting technology continues ~
https://www.nhk.or.jp/strl/open2016/

Arrived at the NHK Broadcasting Technology Laboratories in Kinuta, Setagaya Ward, Tokyo. Because it is impossible to go from the nearest railway station on foot, it is impossible to go from the nearest railway station on foot, so all of the bus lines coming from Seijo Gakuenmae Station on the Odakyu Line, Tokyu Denencho Line Noga Station, Tokyu Den-en Town Line Niko Tamagawa Station and Shibuya Station " If you get off at "Place", you should find this building right in front of you. By the way, there is no parking lot.


Before the front entrance, signboard of the Opening of the STRL of 2016. Opening hours are from 10 am to 5 pm, admission is free.


The first entrance into the entrance lobby on the first floor is the display corner of the 8K display where many people stopped holding their feet. On the huge full-spec 8K Super Hi-Vision LCD display of 85 inches, fireworks drawn with CG and natural scenery were displayed, but its fineness certainly unfathomably disappears.


In a landscape like a jungle with lots of trees growing up, the appearance of one piece of trees and the surface of the water has been finely reproduced, and even the eyes that are accustomed to 4K are considered "oops".


Although it is said that "full spec 8K Super Hi-Vision" is not just 8K, its contents are called 7680 × 4320 pixelsHigh definition displayIs 120 fpsHigh frame rate, And gradation 12 bitSmooth image representationExpress richness of contrast differenceHDR(High dynamic range), beyond the conventional expression widthWide color gamut, And reproduces a sound field with realism with up to 22 speakers22.2 channel multichannel soundTechnology to realize.


Super Hi-Vision, which is being developed, is scheduled to start trial broadcasting by satellite broadcast from August 1, 2016. After that, after the start of practical broadcasting in 2018, we are aiming to enter the practical stage in 2020 scheduled to be held by the Tokyo Olympic Games.


By the way, development of display is being promoted jointly with Sharp. It secures specifications of 85 inch size · 7680 × 4320 pixel required for Super Hi-Vision, frame frequency 60 fps (display is 120 fps), 12 bit gradation, HDR, which was released from Sharp85V type wide 8K video monitor "LV-85001"There should be many people who remember that the market price was 16 million yen worth the surprise price. In short, the power consumption is also 1440 watts, which is also quite heavyweight. However, in the future more affordable and low power consumption is expected to appear.


"8K camera" for shooting images to be displayed on 8K television is also displayed next to it.


"Three-plate type" camera which uses three image sensors carries a 33 mega pixel / 120 Hz CMOS sensor and achieves the image quality required for 8K Super Hi-Vision. Today, even more compact single plate cameras are being developed.


Also, prototypes of 8K organic EL display, which is extremely thin, several millimeters thick, are also on display.


A display that takes advantage of the advantages of organic EL that does not require a backlight by emitting light by itself, and enables extremely thin design. Although the display model can not be rolled up because it is a glass type, research and development for the realization of a type that can be rolled up like a projector screen is also being advanced.


Even when viewed from the back, there are no frames, and it has become a thinness of marvel like most films. The prototype was developed jointly with LG Display and Astrodesign, and it seems that four 4K organic EL displays are connected to 8K by combining them.


Research on broadcasting technology to send 8K broadcasts to viewers is underway.


In order to enable Super Hi-Vision broadcasting which requires a bandwidth of 2 to 5 times compared with the conventional terrestrial digital broadcasting, it is necessary to use the next generation video encoding technology and the MIMO technology which bundles by using a plurality of radio waves together, It is said that the conversion has been realized.


More detailed exhibitions are taking place on the first floor of the basement, which is one floor lower than the lobby.


In the full specification super Hi-Vision, wide color gamut performance covering almost all colors in the real world is used ......


Thanks to its excellent high definition, it realizes a sense of realism that makes little sense of particle feeling.


Although it can not be expressed with photographs, there is also a display actually comparing the image quality of the conventional 2K or 4K and 8K at the site. If we compare it with the definition of 8K once, the 4K display that I thought was beautiful will be faded, so the advancement of technology is awesome.


Also, the frame rate is as high as 120 fps is one of the features of the full specification Super Hi-Vision. Actually there were moving pictures such as table tennis rallies and skateboard scenes and it was a demo display, but it certainly was content that feels amazing realism.


There are also places where panda illustrations are listed, showing the features of the full specification super Hi - vision in a clear way.


You can also see a corner that reproduces the site of program production at 8K.


Such a mini set is assembled, and the periphery is surrounded by plural 8K cameras ... ...


A switching desk is set next to it, and it is reproduced how to adjust and output while checking the images sent from each camera. Especially, in this set, making a set with a strong difference in light and dark has been done and it was possible to realize the effect of HDR (high dynamic range) that can produce a wide range of images.


This picture is a part of the video which was actually adjusted and outputted, cut out. We were able to witness the high definition and dynamic range of 8K from the fact that the texture of glass and bread has been reproduced very well, and where there is no whitening even in the bright part.


The HDR used here is completely different from the one which takes a plurality of photos of different exposures like a camera of a digital camera or a smartphone and is synthesized, and the HLG system jointly developed by BBC and NHK (Hybrid · Log · Gamma method) and what is called. While maintaining compatibility with the conventional SDR method, it was said that the corresponding equipment was able to handle images with much broader intensity.