The 19th Asian Games in Hangzhou 2023 officially opened on September 23, and the integration and innovation of ultra-high definition, 5G, VR, AI and other technologies brought an unprecedented experience to this sports event. In this Asian Games, China Central Radio and Television Station actively promoted the innovative application of ultra-high definition, using "4K HDR ultra-high-definition video + 5.1 surround sound" for the international public signal production of the event, and providing "8K + three-dimensional sound" international public signal in the opening and closing ceremonies and athletics events. In terms of new media production, through AI intelligent cutting and 5G technology, the table tennis vertical screen HDR international public signal is produced.
Taking the Hangzhou Asian Games as an opportunity, the main station upgraded the "watch TV" function of the "Central Video" client, opened the demonstration application of ultra-high-definition video and audio standards AVS3, HDR Vivid and Audio Vivid, and built an "8K+ 3D Elite Sound" experience room in IBC to display the wonderful programs of dual Vivid of the 8K ultra-high-definition channel of the main station. This is also the continuous verification of 8K+ dual Vivid live broadcast full-link technology after the Universiade.
"100 cities and 100 screens" live broadcast
The opening ceremony of the Hangzhou Asian Games was broadcast live on more than 710 outdoor landmarks in 90 cities across the country through the "100 Cities and 100 Screens", and you can enjoy outdoor immersive audio-visual experience through the cloud listening APP, forming a unique viewing scenery. The audience said: "The ultra-high-definition picture makes people completely immersed in it!" The high sports spirit, gorgeous Chinese culture, rich Asian style are overwhelmed, and you can listen to the three-dimensional 'Jingcai' sound through your mobile phone, and enjoy this outdoor audio-visual experience. "Following the Beijing Winter Olympics, Qatar World Cup and Chengdu Universiade, the 8K ultra-high-definition audiovisual presentation technology of the main station has once again been upgraded in international large-scale sports events, and successfully created a new matrix of outdoor ultra-high-definition viewing experience."
Li Xiangrong, general manager of Central Guang Yunting Culture Media Co., Ltd., introduced that Yunlian is the first batch of audio platforms independently developed by mainland China to use 3D sound technology Jingcai sound demonstration application, users can watch ultra-high-definition videos through "100 cities and 100 screens", and listen to the 3D Jingcai sound with the Yunlian App, enjoying an immersive sound experience.
Zeng Zejun, chief engineer of Liujin Years Group, mentioned that Liujin Technology has also customized 8K ultra-high-definition LJ8800 series products for "100 cities and thousands of screens", serving major events such as the Winter Olympics, Spring Festival Gala, and Universiade, and the product has supported HDR Vivid and Audio Vivid. "We will continue to be enthusiastic about ultra-high-definition projects and use ultra-high-definition visual technology to better serve large-scale events such as the Asian Games!"
8K+5G changes the horizon
8K is an ultra-high-definition video technology with extremely high resolution and rich details, while 5G is a communication technology with fast transmission speed and low latency. The combination of the two not only enables 8K video to be transmitted to consumers at a very fast speed, but also provides strong support for real-time live broadcast and high-definition video transmission. The combination of the two is making our horizons wider and more exciting.
Zou Haiming, vice president of Sharp Ultra HD Industry Research Institute, said that in order to build an 8K+5G ultra-high-definition industry ecology, the 8K broadcast truck independently developed and integrated by Sharp Ultra HD Industry Research Institute has been officially put into use in 2023, which has 8K six-channel and 5G transmission modules, and has the ability to serve large-scale sports events after intensive testing in the early stage.
Zhong Wenkui, vice president of the multimedia industry headquarters and general manager of the R&D center of Konka Group, said that Konka Group actively participates in the formulation of Audio & HDR Vivid audio and video technology standards, and has introduced HDR Vivid technology into the OLED V5 series products in 2021, and is the first batch of TV manufacturers to obtain HDR Vivid certification. In recent years, with the upgrading of industrial technology, Konka Group has developed a new generation of 8K TVs and products supporting dual Vivid technology, which improve 8K performance requirements from the whole link of chips, interfaces, screens, algorithms, etc., and 8K+Audio & HDR Vivid can bring users the ultimate ultra-high-definition audiovisual immersive experience. Konka Group's latest X6, E8A and other series products will fully support dual Vivid technology, and the sound and picture quality effect will be further improved.
Liao Song, deputy general manager of the marketing department of China Telecom Sichuan Company, said that the province's 8K large-screen matrix invested and built by Sichuan Telecom, the "Sichuan 100 Cities and 1000 Screen Simulcast Network" broadcast the 8K event signals of the Asian Games throughout the process, and the audience can watch it at Chunxi Road in Chengdu, turning the province's urban landmarks, cultural squares and urban business districts into popular check-in places for young people to be enthusiastic, people's hearts are cohesive, and singing and dancing.
Lin Lin, General Manager of System Support Center of China Unicom Video Company, said that China Unicom mobilized resources in Beijing, Tianjin, Hebei and Sichuan to conduct 8K+Audio & HDR Vivid service demonstrations in Hebei and Sichuan, presenting users with ultra-high-definition picture quality with high resolution, high frame rate, high color depth, wide color gamut, and high dynamic range unique to 8K dual Vivid technology, as well as more natural and realistic sound effects. During the Asian Games, the subversive and more infectious immersive experience brought by 8K dual Vivid technology allows every sports fan to experience the wonderful moments of the game in the first time.
Li Lin, General Manager of China Mobile Migu's Technical Service Business Group, said that with the help of technology for the Asian Games, Migu realized the large-scale commercial use of mobile AVS3+HDR Vivid standard convergence points for the first time in the industry in live event services, and piloted 2K/4K+HDR Vivid on small screens and 8K+ dual Vivids on large screens, which is of great significance to promote the end-to-end implementation of AV standards.
Digital and real integration into the future
XR virtual and real fusion production technology brings unprecedented viewing experience and participation form to cultural and entertainment activities such as sports events and large-scale galas with its characteristics of deep immersion and virtual and real interaction. At this Hangzhou Asian Games, there are also a lot of new interactive experiences with XR technology.
For example, the Asian Games Ticket XR Interactive designs 21 mascot performance animations such as swimming, diving, volleyball, table tennis and so on according to the category of Asian Games events, and the audience can open the WeChat mini program with their mobile phones, scan the tickets of different events to experience, and can also get the XR animation show brought by the mascot to feel the wonderful experience of "bringing science fiction into reality".
"Based on our rich computing network resources, we provide AI technology and XR spatial computing technology for the Asian Games XR interactive experience through 5G+ diversified edge computing power, realize high-precision spatial positioning, fast and accurate AI recognition, and complete the accurate connection between digital animation and ticket space, so that interactive applications can remain stable under different lighting conditions and different scene locations throughout the day." China Mobile staff said.
Xiong Wei, general manager of Lingyunguang Yuanke Vision, told reporters that in order to improve the efficiency and quality of ultra-high-definition virtual production, the headquarters ultra-high-definition national heavy laboratory and Lingyunguang Yuanke Vision carried out technical research and launched the national ultra-high-definition XR virtual and real fusion production system - InFision XR. The system uses LED screens to build studio space, and real-time presents dynamic virtual scenes on LED screens through the 3D rendering engine, realizing the seamless connection between virtual space and the real world, and comprehensively improving video content production efficiency and virtual visual presentation effects. XR technology is used to create real-time online virtual scenes and high-simulation digital humans, and combine with VR, AR and other technologies to build an immersive audiovisual experience virtual space, bringing immersive experiences to film and television creation, theatrical performances, short videos and live broadcasts.
Source: Global Network