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中央广播电视总台依托超高清视音频制播呈现国家重点实验室全面推进5G、4K/8K、AI、AR/VR等新技术的研发,在2021年春节联欢晚会实现了8K超高清试验频道全球首次8K直播、4K春晚上海传媒港影院同播、AI+VR裸眼3D拍摄制作及超高清VR+沉浸式三维声直播等全新应用模式,这些技术创新为电视观众和新媒体用户带来了焕然一新的视听体验。本文对整体技术创新内容进行了介绍和总结。 相似文献
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5G为广播电视行业发展注入新元素,推动广播电视工程向多元化、智能化发展。基于5G概述,分析5G在广播电视工程中的优势,从广播电视转播、5G智慧电台、5G+4K/8K+VR/AR的直播模式以及5G+4K/8K+AI的融合方面探讨5G在广播电视工程中的具体应用,以期为广播电视工程行业的相关人员提供参考。 相似文献
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目前众多科技博物馆对虚拟现实(VR)和增强现实(AR)技术的应用持观望态度。本文运用博物馆学、
传播学、教育学的理论与方法,从科学传播的目标、资源、方式特点入手,分析科技博物馆需要什么样的AR
产品,提出基于展览及其教育活动、基于实物的体验式学习、基于实践的探究式学习的VR/AR 产品是科技博
物馆的最大需求,而目前的大多数VR/AR 产品往往游离于上述需求。并据此提出科技博物馆VR/AR 产品的
开发策略:把基于展览及其教育活动的VR/AR 产品作为“主战场”,把基于实物的体验式学习和基于科技实
践的探究式学习的VR/AR 产品作为“主攻方向”;寻找科技博物馆与VR/AR 传播特长的契合点,“扬长补短”;
根据传播目标和传播效果的要求进行VR/AR 开发;运用教育学、传播学理论与方法设计VR/AR 产品要素。 相似文献
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要知道,在2015年、2016年市场上都有各种分析称,这将是VR/AR爆发的元年.但事实证明,几乎每一年VR/AR都是不温不火.2017年VR/AR会不会迎来拐点,主要还是看VR/AR是否解决了此前遇到的挑战. 相似文献
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今年的CES上,AR/VR、AI成为焦点,有多家企业展示了即将商用的AR/VR产品,业界专家认为,经过一年多的发展,AR/VR接近大规模商用,市场前景明朗化.这也可以从此次参加CES的AR/VR企业数量中看出.今年参加CES的AR/VR企业比去年增加了48%,达到70多家,展示场地也较去年扩大将近一倍. 相似文献
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本文邀请AR/VR行业关键厂商及领军人物,就AR/VR产业的处理器及连接技术进行了深入的解读和分析. 相似文献
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VR/AR/MR等新媒体技术的发展,为影视创作提供了新的路径。以VR技术为主的全景三维互动技术能够为观众提供更具沉浸感的观影体验,但由于硬件技术的不断迭代与创作思路的不成熟,目前以实拍VR互动技术为主的影视作品较少,缺少完整规范的创作流程与理念。本文将以实拍VR互动视频为案例,聚焦讨论实拍VR互动视频创作过程中前期拍摄、后期特效、3D处理等方面内容,旨在提出一套系统化的实拍VR互动影视制作流程,并探索这类新媒体影视创作的理念。 相似文献
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作为行业风向标,全球大部分的电子巨头都会在CES上展示他们的最新成果.从本届CES看,除了延续AR/VR、智能家居等热点外,智能汽车成为新的亮点.
VR/AR流行进入各种终端
如果说2016年是VR/AR技术起家的一年,那么2017年将会有更多搅局者来分“蛋糕”.尽管技术上的不成熟等依然是VR/AR发展和普及的障碍,但依旧未能阻止其成为本届CES上的热点. 相似文献
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The authors describe the development trends and results of millimeter-wave systems in Japan in such fields as communication, radar, and measurement systems. The applications included are the W-40G waveguide transmission communication system, an automobile traffic control system using the 60-GHz band, a collision avoidance radar system for an automobile, a plasma electron density measuring system, and satellite communication. The authors describe the development of devices such as high-power FET amplifiers, traveling wave tube amplifiers (TWTAs), IMPATT amplifiers, low-noise amplifiers, and monolithic microwave integrated circuit (MMIC) devices used in constructing the millimeter-wave systems 相似文献
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《Electron Devices, IEEE Transactions on》1972,19(4):524-531
A review is given of the progress in electrophotographic science and technology in Western Europe during the years 1967 to early 1971. University research work is mainly directed towards two areas: 1) the electrical and physical properties of photoconductors, such as selenium, chalcogenides, oxides, and organic materials; and 2) the sensitization of these photoconductors. Industrial research teams report on the preparation of electrophotographic layers on development and on image evaluation. A bibliography including scientific papers and patents published on this subject during said period completes this review. 相似文献
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新年伊始,移动产业的各种预测层出不穷,《今日美国报》专栏作家凯文·马尼(Kevin Maney)撰文,列举了2011年移动行业的五大趋势。以下为文章全文:2011年的移动行业有一些显而易见的趋势:Verizon可能会出售与其网络兼容的iPhone,苹果可能会发布新iPad,而用户则仍然有可能浪费大量时间玩《水果忍者》(Fruit Ninja)这样的游戏。 相似文献
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《Microwave Theory and Techniques》1985,33(10):946-950
The spectral-domain analysis is applied to the derivation of the propagation characteristics of the even and odd mode, for the broad-sidecoupled suspended-substrate stripline (BCSSS). The characteristic impedance, based on the current-power definition, as well as the effective permittivity are evaluated. Numerical results are presented illustrating the effects of several different dimensional parameters. Numerical results indicate a large spread between even- and odd-mode impedance for thin substrates (D/A < 0.045) and stripwidths ranging 0.046<= W/B<= 0.47, suggesting tight coupling. Negligible frequency dependence on odd-mode impedance is evident, as well as significant frequency effects on even-mode impedance. Considerable dispersion is shown to be present in the odd mode for wider strips. Measured results for a low-pass filter and cascaded transitions are presented. 相似文献
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DingYaogen 《电子科学学刊(英文版)》2002,19(4):441-444
Recent research progresses in Multi-Beam Klystron(MBK)in IECAS are briefly introduced in the letter,The S-band MBKs of IECAs have peak power of 120-250kW,average power of 4-9kW,efficiency of 35-45%,gain of 41-46dB.beam voltage of 15-19kV,and weight of 40-45kg.Some key technical problem of MBK are also described and discussed.Among them,improving the design of MBK to botain the required bandwidth,raising beam transmission to increase average power,eliminating oscillation and spray spectrum,overcoming window breakdown caused by magic mode,reducing breakdown times of electron gun,are most important things for the practical MBK.Besides,further research owrk in MBK in IECAS is commented. 相似文献
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Erbschloe D. Solymar L. Takacs J. Wilson T. 《Quantum Electronics, IEEE Journal of》1988,24(5):820-826
The intensity and phase of two counterpropagating optical beams in a photorefractive material are investigated both numerically and by using an approximate analytical theory. It is shown that in the reflection regime they are two situations where coupling between the beams may be spatially dependent; in the case of nearly degenerate two-wave mixing, and when a photocurrent is present. In these situations, previously obtained results may need significant correction 相似文献