一种帧兼容双层架构的3D编码

分析了杜比实验室发明的一种双层3D编码解决方案,该方案包括基本层和增强层,基本层采用帧兼容格式,可以解决3D分辨率下降、基础设施投资高等问题,还能使用现有的2D基础设施,未来投入少量资金即可实现全分辨率3D显示.最后,介绍了康佳与杜比实验室合作研制的支持杜比3D格式的裸眼3D超高清智能电视样机情况.     

双路全高清——3D广播电视的优选方案

3D广播电视的开播,宣告了"立体技术"由电影走向广播电视,3D广播电视采用哪一种制式,是一个值得认真讨论的问题,本文论述了"双路全高清"技术作为我国3D广播电视制式的必要性和可行性。     

三星C7000全高清3D LED电视——无与伦比的视觉震撼

国际足联计划在南非世界杯5个比赛场地共计25场比赛中采用3D摄像机拍摄并实现3D转播,A5个场馆分别位于足球城、约翰内斯堡埃利斯公园、德班、开普敦和伊丽莎白港。     

中央电视台2D/3D兼容演播室系统设计及其应用

3D演播室增加2D功能后,系统可以在不同模式下灵活转换应用,从而满足更多节目需求,拓展使用范围。本文以中央电视台新址E16演播室为实际案例,从应用需求、系统设计思路、硬件连接、布局调整、软件设置以及系统测试等方面对2D/3D兼容演播室的改造进行了介绍。     

3D电视传输技术发展路线

引言 按照国际电联（ITU）对3D电视系统的代次划分。3D电视系统共分为3代．从佩戴眼镜观看一个视角的3D视频,发展到允许头部移动观看多个视角的3D视频．并最终演进为自然3D视频。第一代3D电视系统传输两路视频信号．分别用于左右眼的观看．因此传输的视觉信息中只包含有一种视差效果,观看者通常需要佩戴眼镜。     

3D电视双眼串扰测试方法

针对3D电视双眼串扰测试中存在的问题,提出屏幕多点光色度探测方案及数据分析方案。对全画面3D电视双眼串扰测试进行研究,提出基于多点测量的3D电视双眼串扰测试方法,增强画面捕捉能力,提高串扰的测试精度和速度。通过测试与分析,证明了所提的测试方案可以定量描述3D电视的双眼串扰程度。     

LED电视在3D模式下的视觉健康舒适度测试研究北大核心

通过客观量测人眼观视时的各项视觉生理指标,并将各项指标嵌入人眼健康舒适度评价模型进行分析运算的方式,经由180人次的人因实验,从视觉健康舒适度等方面对3款主流品牌的LED电视样机进行了较为详细的测试与评价。     

3D电视节目制作播出技术指导和质量控制

为配合我国3D电视试验频道顺利开播,总局科技司于2011年下达3D项目研究任务,成立由多家单位参与的项目组,进行《3D电视技术指导意见——节目制作播出》的研究和编写工作.本文介绍该项目的技术方案、关键技术及创新点.     

平板3D电视与人眼生理

文章从人眼生理学角度分析了在观看平板3D电视时产生眼疲劳的原因。     

Synchronous 2D/3D Switching System for Service‐Compatible 3DTV Broadcasting

This paper proposes a new broadcasting system for the service‐compatible 3DTV in which the 3D service can coexist with the conventional digital TV broadcast. In the proposed system, the commercial 3DTV service can be implemented via the existing DTV channel without utilizing the dedicated 3DTV system. This 2D/3D system interworks with the conventional system and can switch to 2D or 3D service according to the broadcast programming and schedule. The system also provides a mechanism that can prevent the synchronization mismatch between left and right video streams and between the stream and the associated signaling in the 2D/3D transition periods. The picture quality measurements are carried out based on the ITU‐R recommended test to check the level of quality of service provided by the proposed scheme. The conformity tests are also performed with the conventional channel and the receiver for the DTV system to confirm the feasibility of the proposed one for the commercial service.     

An HDTV‐Compatible 3DTV Broadcasting System

We introduce a high‐definition three‐dimensional television (3DTV) broadcasting system that is fully compatible with the existing transmission system of high‐definition television (HDTV). Specifically, we developed high‐definition 3DTV broadcasting subsystems including a 3DTV camera, 3DTV video multiplexer and demultiplexer, 3DTV receiver, and 3DTV outdoor broadcast van. To verify the developed subsystems, we performed experimental services of 3DTV broadcasting during the 2002 FIFA World Cup Korea/Japan.. According to our subjective evaluation test, 88% of 273 viewers rated the perceived depth of 3DTV as “Good,” and 36% of the viewers preferred 3DTV to other digital broadcasting services.     

电视台高清播出系统设计

电视台全域制播流程正在逐渐网络化、高清化,新流程对传统电视从业者是新的挑战,也是新的机遇。本文全面阐述了黑龙江电视台新建的10频道高清播出系统的设计重点,着重分析了高标清同播、上下变换、网络化节目备播、与全台网互联互通、网络安全设计的思路与解决方案,以及如何适应将来的业务需求。     

Three-Channel FM Stereo Multiplex System for Compatible Broadcasting

A system for transmitting and receiving three independent stereophonic channels by FM multiplex is described. This system has the advantage of being compatible with monophonic and two-channel stereophonic FM receivers without any significant loss in their output signal-to-noise ratios (less than 1 dB) and without having to utilize any part of the SCA band. Compatibility of the three-channel stereophonic receiver with a one-or two-channel broadcast is achieved by the use of an additional pilot signal that does not cause any increase in the instantaneous frequency deviation of the FM carrier. The additional noise in the output of the three-channel receiver appears to be less than 6 dB above the noise that is now present in two-channel receivers.     

科技创新突出贡献奖工程技术奖一等奖中央电视台北京奥运会高清网络节目制播系统

2008年北京奥运会在鸟巢上空五彩斑斓的烟花中华彩落幕,中央电视台奥运电视转播也留下了浓墨重彩的一笔.     

广东电视台高清播出系统改造项目的设计与实现

为拓展播出规模,广东电视台播出中心对原有的高清播出系统进行了系统改造.从视音频系统、播出控制系统、视频服务器系统等方面分别详细描述了新的高清播出系统架构与设计思路,举例介绍了新系统的特点及为提高播出安全性所采用的特别技术设计,使得新系统具有较强的技术先进性、可扩展性和可兼容性.     

An HDTV Broadcasting System Utilizing a Bandwidth Compression Technique?MUSE

An HDTV broadcasting service on one satellite broadcast channel became available after the development of a transmission system called MUSE involving bandwidth compression. Using MUSE, a satellite channel of width 27 or 24 MHz in the 12 GHz band can carry an HDTV picture, digitally-coded four-channel sound and independent digital signal at about 100 Kb/s.     

广播可视化直播系统业务浅析

随着近几年互联网的快速发展,新媒体迅速崛起,无论从内容生产、采集到素材编辑、制作,还是传播以及商业运营等,新兴媒体发展之快、覆盖之广,都对传统媒体造成了很大的冲击。传统媒体的受众规模不断缩小,市场份额逐渐下降,转型已迫在眉睫。在此背景下,贵州广播电视台根据实际需要,对其下的一个广播频率直播系统进了可视化改造升级,达到了预期的效果,满足了使用需求。本文根据此次改造对该可视化直播系统架构进行介绍。     

高清晰度电视发展现状及江苏省广电总台高清发展思考

本文介绍了我国高清晰度电视的发展现状,提出了高清电视频道播出的重要条件.作者作为高清项目组负责人,对江苏省广电总台"十一五"高清电视发展提出设想.