ULTRA HD 4K
In May 2012, NHK showed the world's first ultra-high-definition shoulder-mount camera.[50] By reducing the size and weight of the camera, the portability had been improved, making it more maneuverable than previous prototypes, so it could be used in a wide variety of shooting situations.[50] The single-chip sensor uses a Bayer color-filter array, where only one color component is acquired per pixel.[50] Researchers at NHK also developed a high-quality up-converter, which estimates the other two color components to convert the output into full resolution video.[50]
ULTRA HD 4K
Also in May 2012, NHK showed the ultra-high-definition imaging system it has developed in conjunction with Shizuoka University, which outputs 33.2-megapixel video at 120 fps with a color depth of 12 bits per component.[51][52] As ultra-high-definition broadcasts at full resolution are designed for large, wall-sized displays, there is a possibility that fast-moving subjects may not be clear when shot at 60 fps, so the option of 120 fps has been standardized for these situations.[51] To handle the sensor output of approximately 4 billion pixels per second with a data rate as high as 51.2 Gbit/s, a faster analog-to-digital converter has been developed to process the data from the pixels, and then a high-speed output circuit distributes the resulting digital signals into 96 parallel channels.[51] This 1.5 in (38 mm) CMOS sensor is smaller and uses less power when compared to conventional ultra-high-definition sensors, and it is also the world's first to support the full specifications of the ultra-high-definition standard.[51]
During the 2012 Summer Olympics in Great Britain, the format was publicly showcased by the world's largest broadcaster, the BBC,[53] which set up 15-meter-wide screens in London, Glasgow, and Bradford to allow viewers to see the Games in ultra-high definition.[54][55]
On April 2, 2016, Ultra-high-definition television demo channel UHD1 broadcast the Le Corsaire ballet in Ultra HD live from the Vienna State Opera. The programme was produced by Astra satellite owner, SES in collaboration with European culture channel ARTE, and transmitted free-to-air, available to anyone with reception of the Astra 19.2E satellites and an ultra HD screen equipped with an HEVC decoder.[182]
If you have a fast enough internet connection, you can stream 4K HDR video content from most major video streaming services. Amazon, Google Play, iTunes, Netflix, and Vudu all offer a wide variety of 4K movies and shows. If that isn't enough, YouTube supports 4K video for anyone from studios to GoPro users. Many of our favorite media streamers have options for ultra high-definition content as well.
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