8K viewing immersion sign language broadcast digital people

During the Beijing Winter Olympics, in order to safeguard the health and safety of Olympic-related personnel and spectators, only some of the directed invited spectators can enter the venues, which means that most of the public will not be able to enter the Winter Olympics venues to watch the games on site. Can not enter the scene of the audience how to enjoy the immersive effect of watching the game, a comprehensive experience of the Winter Olympic Games wonderful? 5G cloud broadcast, 8K broadcast center, 5G + 8K broadcasting technology, real-time sign language broadcasting digital human system, low-temperature environment of graphene intelligent heating technology ...... these bright cutting-edge science and technology for the Beijing Winter Olympics inserted the "wings" of wisdom! These cutting-edge technologies have given the Beijing Winter Olympics "wings" of intelligence, which can transmit the live events to all corners of the world in real time, ensuring that viewers can watch the events synchronously no matter where they are. In addition, the audience can also choose a different viewing angle according to their own preferences, to get a "thousand people a thousand faces" quality experience.

8K-APP for the first time in the mobile

Realization of 8K video playback

Winter Olympics viewing, TV is still the choice of most people. On the eve of the opening of the Winter Olympics, Beijing Radio and Television Station Winter Olympics Documentary 8K Ultra HD test channel officially opened. Through the new introduction of shallow compression coding, multi-format mixing, layered coding technology, intelligent up and down conversion and other new structures, new formats, new features, the Winter Olympics documentary 8K UHD test channel will provide viewers with a clearer, more shocking viewing experience.

Not only that, during the Winter Olympics, the channel will serve as a demonstration and integration platform for the application of 5G+8K for the Winter Olympics, taking the broadcasting of the Winter Olympics UHD events as an opportunity to continue to carry out research on and application of UHD and new high-tech video technologies, linking the city's outdoor big screen, the demonstration of the community's medium-sized screen and the small screen of the individual terminals, and for the first time, realizing cross-screen convergence and dissemination in different scenes. This means that during the Winter Olympics, people can keep up with the progress of the event whether they are outdoors or sitting at home.

For young people, watching all kinds of programs and events through mobile devices has become a habit. During the Beijing Winter Olympics, 8K-APP and other mobile channel co-broadcasting technology not only facilitates the public to watch the games at any time through mobile devices, but also in the mobile side can see the same quality as the Winter Olympics documentary 8K UHD test channel 8K UHD channel content. To realize this function, the public only needs to download an 8K-APP.

8K-APP is a 5G high-tech video mobile application product created by Beijing Radio and Television Station to expand the convergence of communication scenarios for the mobile Internet. This product realizes 8K video playback on cell phones for the first time, and is the first mobile application on cell phones that supports 8K format in China. The public can easily zoom in and out of the screen through the two-finger gesture, and with the advantage of 8K ultra-high resolution, they can feel the extreme details on the screen.

The new 5G cloud broadcasting technology

Realize broadcasting "lightweight cloud"

The reason why the public can watch the game anytime and anywhere synchronously, the latest 5G cloud broadcasting technology can not be faulted. Traditional broadcasting is based on on-site production, requiring a large production team and equipment, facing high equipment costs, personnel investment and many other problems. As one of the three key layout industries of the winter Olympic Games, cloud broadcasting will be heavy assets, high threshold of the traditional broadcasting "lightweight cloud", to achieve the broadcasting equipment cloud and personnel services remotely.

The "secret" of cloud broadcasting is condensed in a weight of 930 grams, only the size of a schoolbag 5G broadcasting backpack. How does it "replace" the traditional broadcast vehicle, creating an innovative experience of event broadcasting? According to the Beijing International Cloud Broadcast Technology Co., Ltd. CTO Zhang Pengzhou introduction, the cloud broadcasting to broadcast the functions of the car to the cloud, the scene signal can be through the 5G backpack, the use of 5G network transmission to the cloud broadcasting platform, the staff only need to laptop and other lightweight equipment, you can achieve multiple signals on the cloud broadcasting guide switch.

During the winter Olympic test match, the entire test match "cloud production center" is located in the cloud broadcast technology company's Shougang office area, a laptop, a screen to complete the "cloud production center" set up, through the 5G backpacks come to the front-end signal, the guide broadcasting staff in the 5G backpack, the front-end signal, the guide broadcasting staff in the cloud, the front-end signal, the guide broadcasting staff in the 5G backpack. Through the front-end signal from the 5G backpack, the guide staff in the office area will be able to complete the multi-screen guide cut, audio and subtitle production, and then finally distribute the signal to a number of media live.

It is worth mentioning that, in order to adapt to the cold outdoor environment of the Winter Olympics test match, the 5G backpack for the first time uses the inner bag of graphene. According to the relevant person in charge of Beijing Innovation Aishangjia Science and Technology Co., Ltd, its research and development with the Beijing Graphene Technology Research Institute of low-temperature environment graphene intelligent heating products and heat protection application technology, breakthroughs in the low-temperature start-up and operation of graphene flexible textile heating materials, rapid electric heat conversion and other key technologies to achieve the low-temperature application of graphene flexible textile heating technology can effectively deal with the challenges of low temperatures.

8K UHD immersive viewing

Realize "thousands of people, thousands of faces"

To realize the immersive viewing effect, in addition to clearer picture quality, the free conversion of the viewing angle is also an important support. According to the relevant technical personnel of the Beijing Broadcasting Corporation, by increasing the synchronization mechanism in the multi-channel signal video stream, so that the signals transmitted by different paths in time to maintain consistency, it is possible to realize the audience to act as their own guide, according to their own preferences to choose a different camera angle screen, multi-dimensional, multi-dimensional viewing of the tournament.

Beijing International Cloud Broadcasting Technology Co., Ltd. developed the free view technology, based on the 5G network, the use of venues deployed in the field of multi-camera to provide around the entire venue of the arbitrary angle of the video information, to facilitate the audience to rotate the switch to find their own desired perspective and the best to follow the position of the viewing. The free view technology is based on the 4K multi-track broadcast image synchronous acquisition coding and picture synthesis technology as the core, presenting the scene characters or objects 360 degrees around the perspective of the three-dimensional sense of the effect, so as to realize the live picture of the "thousands of people thousand faces" interactive experience.

According to Zhang Pengzhou, the cloud broadcast "multi-version production" function for the "thousand people thousand faces" provides further support.

According to Zhang Pengzhou, the cloud broadcast "multi-version production" function provides further support for the "thousands of people, thousands of faces", that is, the same front-end signals, different teams can real-time online production of different versions, to meet the personalized needs of the new media. 2022 Beijing Winter Olympics, the cloud broadcast for the two Winter Olympics snow projects to provide a free perspective filming services.

Zhang Pengzhou said that, combined with 5G and the overall intelligent cloud network capabilities, the public can independently choose to receive a certain angle of the live signal, or through the preset template by the cloud system computing to provide any moment of freeze-frame surround or slow motion surround effect, to achieve the application of the 5G era of strong interaction. The cloud broadcasting service for the 2022 Beijing Winter Olympics not only realizes for the first time that a Chinese company provides free-view shooting services for the Olympics, but also is the first time that a free-view signal provided by a Chinese company is broadcasted globally as an Olympic public **** signal.

Intelligent viewing technology

Meet the needs of different groups of people watching the games

It is worth mentioning that this year's Winter Olympics will also provide help for special groups to understand the Winter Olympics. In order to facilitate the hearing-impaired people in-depth understanding of the game information, a comprehensive experience of the Winter Olympics wonderful, Smart Spectrum AI, Lingyun light and Beijing Radio and Television jointly created a "Winter Olympics sign language broadcast digital person", through the AI technology will be translated and synthesized into sign language, and the use of digital person virtual anchor to broadcast.

Some people may wonder why the development of virtual anchors, rather than professional sign language interpreters? According to Beijing Zhi Spectrum Huazhang Technology Company (Zhi Spectrum AI) relevant person in charge of the traditional artificial sign language translation workload, program hosts and sign language hosts with the difficulty of the extremely high, and sign language translation professionals are very scarce, can not meet the needs of the tournament a lot of coverage. The use of digital human virtual anchor to broadcast is a good solution to these problems. According to reports, the "Winter Olympic sign language broadcast digital human" to ultra-large-scale pre-training model as the core technology, independent construction of multi-modal body movements, expressions, finger synchronization acquisition system, the use of cross-modal anthropomorphic generation algorithms, ultra-high-precision realism of digital human and other industry-leading technologies, to achieve the Winter Olympic Games during the real-time news of the event of the professional sign language interpreter broadcasting.

The research and development of the Winter Olympics sign language broadcasting digital human technology is not an easy task, and one of the difficulties is the lack of perfect sign language corpus data in China. To this end, the researchers, with the support of the Beijing Municipal Federation of the Disabled and the Municipal Federation of the Disabled Deaf Association, invited more than 40 deaf teachers and sign language experts to conduct sign language text transcription and technical guidance, and to conduct a wide range of hearing-impaired group evaluation, and finally constructed the largest multimodal sign language corpus in China in line with the national general sign language specification, with a total vocabulary and utterance size of more than 100,000 words. This technology not only provides sign language information broadcasting services for the hearing impaired and reduces the operating costs of the Winter Olympics, but also reflects the respect of the city of Beijing for the disabled, realizing the perfect combination of technology and humanity.