China News Service, Beijing, January 30 (Reporter Niu Mengdi)
The State Administration of Radio and Television released the "Technical Requirements for Display Adaptation Metadata for High Dynamic Range TV Systems" (GY/T 358-2022) industry standard on the 30th.
The application of High Dynamic Range (HDR) technology in ultra-high-definition video can achieve a wider dynamic range of exposure, better extract and display highlights and shadow details, and make the picture more natural.
This standard is oriented to the display adaptation requirements of UHD TV high dynamic range programs, and proposes methods for display adaptation metadata extraction, encapsulation and transmission, and image reconstruction, which can adapt to the image presentation requirements of terminals with different display capabilities.
As a key basic technology in the field of high-tech video, HDR was only provided by a few foreign companies in the past.
The State Administration of Radio and Television has thoroughly implemented General Secretary Xi Jinping's important expositions on scientific and technological innovation, organized domestic industry-university-research institutions to carry out scientific and technological breakthroughs, achieved technological breakthroughs, and filled domestic gaps.
The release of this standard plays an important role in regulating and promoting the development of my country's ultra-high-definition video industry, and is also an important measure for technological standards to serve the Beijing Winter Olympics.
At present, the core technology of this standard has been realized in the end-to-end industry chain layout of ultra-high-definition video content production, encoding, reception, decoding, display, etc., and the industrialization promotion is carried out under the own brand name of "HDR Vivid".
In terms of content production and broadcasting, China Central Radio and Television Station, Tencent, iQiyi and other platforms have taken the lead in application.
In terms of production tools, encoders, decoding chips, display terminals, etc., Chengdu Sobey, Danghong Technology and other enterprises have been applied in the industry.
The standard will be applied to the related broadcast activities of the Beijing Winter Olympics and Winter Paralympics, realistically presenting the unique ice and snow scenes and exciting events of the Winter Olympics, providing programs with higher technical formats and more beautiful visual experience, and providing audiences with beautiful scenery. Huan's Winter Olympics audio-visual feast.