Content-adaptive robust error concealment for packet-lossy H.264 video streaming     

LIAO Ning  YAN Dan  QUAN Zi-yi  MEN Ai-dong 《浙江大学学报(A卷英文版)》2006,7(Z1)

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运动技术录像解析教学实验软件的开发     

刘北湘 《首都体育学院学报》2005,17(3):121-123

运动技术录像解析是运动技术分析中的重要手段,也是大学体育专业学生应该了解和掌握的重要知识技能。但是由于受到各种条件的限制,与教学配套的相关实验并没有得到很好的实施和推广。为适用教学和实验的需要,改善当前的教学条件,作者设计了这样一个可用于运动技术录像解析教学实验的辅助软件。软件经实际使用收到了较好的教学效果。本文就是对这个软件的情况进行介绍,希望能得到同行的关注和见解。这个软件的意义并不在于理论上,而在于它的新型实用方面。  相似文献   

网络环境下高校图书馆期刊服务工作刍议     

高瑞玲 《天水师范学院学报》2003,23(2):88-89

网络环境下高校图书馆期刊服务工作有其相应的特点和原则，应从3个方面入手做好开发期刊信息服务的工作。  相似文献   

彩色图像信号的非均匀采样和重构     

朱学芳 《现代图书情报技术》2003,35(3):67-69,72

计算机图像处理技术的发展，加速了情报学对图像／视频等较大信息量的快速存储、检索、应用。本文讨论将彩色数字图像信号按一定的规则分割成相同大小的子块，对其进行非均匀降速采样的过程，重采样频率的自动确定、选择原则，重构信号的质量、数据量与子块的尺寸等问题，并以实际的彩色数字图像文件全部用VC 6．0编程实现非均匀降速采样和Hermite插值重构；以实验数据得出了一些有益的结论，并进行了分析讨论。分析方法、实现程序不仅彩色数字图像文件有效，对视频信号也有效的。  相似文献   

无盘网络与数字图书馆   总被引：2，自引：0，他引：2  

潘寅生 《现代图书情报技术》2002,18(4):11-13

通过无盘网络与有盘网络的比较，提出无盘网络作为新图书馆部分网络选型的解决方案以及无盘网络在数字图书馆中的应用。  相似文献   

视频数据库及其应用   总被引：1，自引：0，他引：1  

梁雯 《现代图书情报技术》2002,18(6):64-65

视频数据库是多媒体数据库研究的继承和深入。本文阐述了视频数据库研究的主要问题，介绍了视频数据库系统的发展，并通过Hampapur提出的视频数据库的框架，旨在向读者展示视频数据库的优越性以及在各方面的应用。  相似文献   

从北京卓众出版有限公司的成立探析科技期刊体制改革   总被引：2，自引：0，他引：2  

谢艳丽  孙际元 《编辑学报》2008,20(6):510-512

从文化产业发展的需求等方面论述文化体制改革的必要性及可行性,结合北京卓众出版有限公司的成立探析科技期刊体制改革的意义和做法.  相似文献   

How Persuasive Are Health Advertisements in First-Person Shooter Games? Exploring Knowledge-Activation and Thought-Disruption Mechanisms     

Jorge Peña  Subuhi Khan  Christopher N. Burrows  Hart Blanton 《Communication Research Reports》2018,35(4):293-302

This study examined whether persuasive health messages embedded in shooter games have broad or targeted effects on players’ willingness to engage in risk behaviors (N = 145). Participants presented with in-game health messages discouraging alcohol-impaired driving of motor vehicles showed reduced willingness to drink alcohol and to operate both motor and nonmotor vehicles, compared to those in a no-message gaming control condition. There were no spillover effects on willingness to smoke cigarettes or marijuana, thus implying targeted persuasive effects. In addition, players experiencing high instead of low cognitive load showed decreased postexperiment willingness to drink and operate nonmotor vehicles, thus suggesting that playing a game under high cognitive load can influence players’ attitudes. The findings replicate previous research and further expand on knowledge-activation and thought-disruption mechanisms underlying the persuasiveness of health messages.  相似文献   

Social Comparisons and Need Fulfillment: Interpreting Video Game Enjoyment in the Context of Leaderboards     

John A. Velez  David R. Ewoldsen  Michael D. Hanus  Hyunjin Song  Jonathan A. Villarreal 《Communication Research Reports》2018,35(5):424-433

This study examines how social comparison information provided by video game leaderboards may influence players’ retrospective judgments of autonomy, competence, and relatedness need fulfillment. Participants played a video game and were randomly assigned to receive no postgame feedback or were shown a leaderboard that placed them in the top or bottom quartile of players. Results indicate downward social comparisons increase enjoyment by increasing competence and relatedness perceptions. However, upward comparisons did not have an opposite effect, nor did either type of social comparison influence players’ autonomy perceptions. Implications for applying Self-Determination Theory to video game enjoyment in the context of social comparison feedback is discussed.  相似文献   

Power Struggles,Regulation and Responsibility     

Sian Barber 《Media History》2018,24(1):99-114

This article explores the relationship between the British Board of Film Classification (BBFC) and government during the implementation of the Video Recordings Act (VRA). It considers the public Parliamentary debates about the VRA, and places them alongside private correspondence between the Home Office and the BBFC, and internal BBFC material from the recently catalogued James Ferman papers held at the BFI. As well as exploring the introduction of the VRA, this article also aims to briefly consider its implications for the BBFC, how they set about interpreting and implementing its stringent recommendations and how this impacted upon the organisational working practices of the Board. While the VRA was without doubt one of the most significant pieces of legislation within the history of film regulation in Britain, the time is ripe for its reappraisal and with it a re-evaluation of the role played by the BBFC in securing statutory regulatory powers.  相似文献