摘要
本文介绍了北京广播电视台8K超高清制播系统建设历程以及项目主体构成,提出通过新型文件/编码/信号格式结合智能化应用解决业务效率、硬件性能、图像质量等难点,详细描述了8K多格式混合制播、分层编码、字幕分离生产、浅压缩视频流、人工智能视频处理等创新要点。同时,结合系统调试和业务应用中遇到的问题,给出了电视端播出稳定性提升和移动端呈现质量解决方案,还梳理了科技冬奥应用示范和8K内容生产成果,并说明了后续重点任务和工作方向。
This paper introduces the construction course and project structure of the 8K UHD production and broadcasting system of Beijing Radio and Television Station.It proposes the new solution to solve the difficulties of operational efficiency,hardware performance,and image quality through new file/coding/signal formats combined with intelligent applications.It describes in detail the innovations in multi-format production and broadcasting,layered coding,subtitle separation,shallow compressed video stream,artificial intelligence video processing,etc.At the same time,based on the problems encountered in system debugging stage and operational applications,it also provides the solution to improve the presentation quality of mobile terminals and the stability of TV broadcasting.The demonstration of the technology Winter Olympics application and the production results of 8K content are also summarized,and the follow-up key tasks and work directions are explained.
作者
毕江
张宁
Bi Jiang;Zhang Ning(Beijing Radio and Television Station,Beijing 100022,China)
出处
《广播与电视技术》
2023年第5期44-50,共7页
Radio & TV Broadcast Engineering
关键词
8K超高清电视频道
8K超高清制播系统
业务效率
图像质量
生产模式
8K UHD TV channel
8K UHD production and broadcasting system
Operational efficiency
Image quality
Production mode
作者简介
第一作者:毕江(1968-),男,教授级高级工程师,中宣部全国宣传文化系统“四个一批”人才,享受国务院特殊津贴,现任北京广播电视台台务会成员、技术管理部主任。多次担任重大项目负责人,多次荣获国家广播电视总局、行业协会颁发的全国性奖项,发表专著2部、论文40余篇、近百万字,先后获得全国优秀新闻技术工作者、全国优秀影视科技工作者等荣誉称号。
