网络视频的发展现状及技术探析

希望通过互联网得到或发布视频信息的网民日益增多。多媒体技术和计算机网络技术的不断发展,为网络视频的传播提供了良好的平台。主要论述我国目前网络视频的发展现状,并对涉及到的多媒体技术和网络技术进行探索和分析。     

基于流媒体技术的英语在线测试系统的设计与开发

随着网络技术的发展,英语在线测试系统逐渐普及。本文介绍了一个基于流媒体技术的英语在线测试系统的设计与开发,用于实现英语在线听力、选择、判断等多题型测试,并实现自动组卷、自动评卷及统计分数等功能。     

现代教育技术在电子商务课程教学中的应用

电子商务课程教学的要求与一般课程相比,有其独特性,运用现代教育理论和现代信息技术来开展教学,对整个教学过程和教学资源的设计、开发、利用及管理实现理论与实践的最优化。提出课堂教学创新的模型,对比传统教学方式,分析利用现代教育技术实现流媒体传输的基本方式和亟待解决的几个技术问题。     

3G网络基础上移动视频监控系统平台的设计

该文对在3G网络下的图象压缩技术和视频编码技术进行了详细的阐述和分析,并设计出一套基于3G网络的移动视频监控系统平台模型,将3G移动网络争固网视频监控结合起来,实现两者优势互补,此平台模型能够弥补传统移动网络和固网的不足,对移动视频监控系统的设计具有一定的指导意义．     

基于通信量控制的流媒体视频点播系统的设计与研究

文章详细的分析了基于Haar小波的视频通信量控制的实现原理,并将它应用在了远程教学的流媒体视频点播系统中,设计了该系统的结构图和工作流程.     

Exploring viewer participation in online video game streaming: A mixed-methods approach

Video game streaming (VGS) has attracted hundreds of millions of viewers all over the world to not only watch but also participate in a variety of VGS activities, such as interacting with streamers and other co-viewers, gift-giving, and social sharing of the viewing experience. The success of the VGS paradigm depends on the active participation of the viewers, since it creates economic, hedonic, and social values. This study applied a mixed-methods approach to explore the critical environmental stimuli evoking viewers’ cognitive and emotional state and empirically tested a research model examining viewers’ participation. Using qualitative interviews, three environmental stimuli were identified (i.e., broadcaster appeal, medium appeal, and perceived co-viewer involvement), which were adopted in the quantitative research model. The research findings suggested that environmental stimuli were positively related to both cognitive and emotional organisms, namely cognitive involvement and arousal, which in turn impacted viewers’ participation.     

Development and evaluation of an e-learning course for deaf and hard of hearing based on the advanced Adapted Pedagogical Index method

Web-based and adapted e-learning materials provide alternative methods of learning to those used in a traditional classroom. Within the study described in this article, deaf and hard of hearing people used an adaptive e-learning environment to improve their computer literacy. This environment included streaming video with sign language interpreter video and subtitles. The courses were based on the learning management system Moodle, which also includes sign language streaming videos and subtitles. A different approach is required when adapting e-learning courses for the deaf and hard of hearing: new guidelines must be developed concerning the loading and display of video material. This is shown in the example of the e-learning course, ECDL (European Computer Driving Licence). The usability of the e-learning course is analyzed and confirmed using two methods: first, the Software Usability Measurement Inventory (SUMI) evaluation method, and second, the Adapted Pedagogical Index (AdaPI), which was developed as part of this study, and gives an index to measure the pedagogical effectiveness of e-learning courses adapted for people with disabilities. With 116 participants, of whom 22 are deaf or hard of hearing, the e-learning course for the target group has been found suitable and appropriate according to both evaluation methods.     

流媒体技术在网上教育中的应用

针对目前网络传输速度慢，无法在同络上及时传输大容量多媒体文件的现状，利用流媒体技术，采用适用于网上教育的Windows Media Service平台来解决网上教育中存在的网络传输速度慢和大容量的多媒体文件在网络上及时生动清晰演示的矛盾。     

视频流媒体技术的教学实现

视频流媒体技术显著的特点就是不需要太多设备，一般学校利用现有的技术装备即可实现的一种远程教学的方法。在教育中的应用容易实现并且效果良好。本课题研究项目作为一种远程教育的解决方案，对处理远程教学的实时传输具有一定的价值。     

Video classification for video quality prediction

INTRODUCTION Video content will be the main contributor to the future traffic in multimedia applications. Camcorders, digital cameras and lately mobile phones with video capturing capabilities have resulted in a wide spreading of multimedia to the masses. Quality of the captured/rendered videos is likely to be the major determining factor in the success of the new multi- media applications as well as product differentiation. Video processing chain includes video capturing, video pre-proce…