共查询到20条相似文献,搜索用时 93 毫秒
1.
本文根据交互式数字电视的发展,基于已有的多个数字电视中间件标准,进行了浏览器系统整体设计。包括系统基本设计,Middleware Support模块设计,多标准的Parser解析,Java/Script处理以及用户与服务交互等。该系统可以良好支持视频音频播放,数据广播。与用户交互等功能,实现了支持多标准的交互式数字电视浏览器。 相似文献
2.
为使小区用户收看数字电视节目,并可实现交互式服务功能,须对同轴分配网络进行设计.论述了上行通道设计指标在整个分配网设计过程中的重要性。 相似文献
3.
4.
5.
目前有线电视的经营者将对准了交互式业务的市场,向用户传送适应个别需要的节目和进行实时的双向通信。本文讨论了在建立一个交互式网络时,需要考虑的几个因素。 相似文献
6.
7.
本文主要就课堂教学中的交互式进行了简要的阐述,而后针对交互式电子白板的教学优势进行了深入研究,结合本次研究最终提出了对教学情境设计、教学资源设计、教学方法设计、教学评价设计的交互式电子白板的教学设计。最终希望借助于本次研究,能够为相关的交互式电子白板的教学策略设计,提供一些可供参考的内容。 相似文献
8.
用户需求高质量的电视节目,需要按照个人的喜好和意愿来收看电视节目,并且根据个人和节目的情况随时更换收看的节目,交互式电视业务可以满足这种需要。交互式电视采用先进的MPEG-2、MPEG-4或RM等媒体音像处理技术和IP技术,利用双向有线电视网或宽带网,为个人用户提供电视广播、视频点播、网络通讯和游戏等信息服务,用户终端可以是“交互式电视机顶盒+电视机”,也可以是PC。 相似文献
9.
在计算机辅助设计(CAD)的过程中,用户的主观感受和想法对设计结果有时会有决定性的影响,文章针对用户的主观评估特征构建了一种新的用户评估模型,该模型在传统的三维评价的基础上增加用户的主观评估维度,有效的提高了交互式设计的效果。 相似文献
10.
《现代电子技术》2020,(3)
设计基于.NET平台的交互式电子技术计算机辅助教学系统,系统硬件结构由用户界面层、业务选择层以及数据管理层三层结构体系构成。教师、学生等用户在用户界面层输入自己身份信息登录系统进入业务选择层后,按照自己的应用需求点击相应的程序,业务选择层将用户选择指令传输至数据管理层,数据管理层按照用户需求选择相应的资源反馈给用户。系统的交互式主要体现在交互性授课、信息交互两方面,交互性授课体现在教师与学生的在线教学;信息交互体现在系统信息交互模型的信息传输。经测试,所设计系统抗压能力强,能够实时响应大量用户的应用指令,且交互式教学效果较好,提升了学生的自我效能感量。 相似文献
11.
三网融合政策的推进,广电行业全面进入双向互动电视时代,如何了解双向互动电视媒介和用户特点,挖掘用户潜在的消费行为,提高用户ARPU值,成为摆在广电企业面前亟待解决问题。本文在基于科技接受模型比较分析的基础上,结合双向互动电视媒介和互动用户特点,设计了适用于双向互动电视受众分析模型,在某广电公司搭建数据分析系统,利用此模型分析双向互动电视受众行为,并将此结果应用于公司的经营决策。 相似文献
12.
现有的流媒体点播用户行为模型对用户的交互性考虑不足,该文提出了一种新的用户交互式行为模型。仿真结果表明,该模型可生成不同交互强度和请求模式的流媒体用户行为合成记录,其统计特征更为合理,拟合实际交互式用户记录较好。 相似文献
13.
以家庭网络为背景,从家庭网络的概念及逻辑结构入手,提出了家庭交互控制网络的概念,分析并比较了家庭交互控制网络中分散交互控制方式和集中交互控制方式两种网络参考模型,并基于集中交互控制网络参考模型提出了一种用于改善人机交互界面、并能隔离不同设备交互逻辑的家用无线手持交互设备的功能设计方案,给出了详细的功能分析、人机接口设计及系统功能结构设计,最后对家用手持交互设备与集成家电控制功能的手机之间的关系进行了简要的分析. 相似文献
14.
详细介绍了数字电视VOD双向互动前端系统的解决方案,分别深入细致地从项目背景、设计目标、业务需求、功能划分等各个方面进行剖析,尤其是从用户角度出发,将该系统基本业务流程进行详细的描述,突出反映了整个VOD双向互动前端系统的特点。 相似文献
15.
《Electron Devices, IEEE Transactions on》1971,18(9):616-621
The primary purpose of this paper is to explore the parameters of display devices that might better serve the needs of highly interactive man-machine systems. Examples of what is meant by "highly interactive" are those systems designed to aid editors in the acquisition, correction, and production editing of "camera-ready" textual information, assist with the development of design drawings in computer-aided engineering design, and provide for development and management information systems graphic reports that can be interacted with by the user. CRTs are the most versatile and ubiquitous form of display in the machine-to-man communication part of this interface. Two major technical drawbacks to CRTs for this function are the size of the work space and the resolution. To significantly increase either of these greatly increases the costs that are already too high for many applications. For the man-to-machine portion of the interface, the CRT has some undesirable characteristics. 相似文献
16.
17.
Delivering interactive multimedia documents over networks 总被引:1,自引:0,他引:1
《Communications Magazine, IEEE》1992,30(5):52-59
A family of applications that consists of interactive multimedia documents, such as electronic magazines and interactive TV shows, is examined and the links between application architecture, user behavior, and network performance are investigated. The kinds of application-specific information that influence the end-to-end quality of service are discussed. The architecture and dynamics of the interactive document in terms of presentation objects (P-Objects), which are the segments of information accessed by the application and which are described according to their size, media composition, and access links, are described. The same structural characteristics that may make an interactive multimedia document appealing to the end user are the characteristics that are helpful during dynamic network performance optimization. This observation is based on the hypothesis that the P-Objects' access graph, together with viewing time statistics, is the information most useful to the network delivery control mechanism for optimizing network performance. Preliminary guidelines for both network and application designers to address each other's concerns are presented 相似文献
18.
19.
User interactive behaviors play a dual role during the hypertext transfer protocol (HTTP) video service: reflection and influence. However, they are seldom taken into account in practices. To this end, this paper puts forward the user interactive behaviors, as subjective factors of quality of experience (QoE) from viewer level, to structure a comprehensive multilayer evaluation model based on classic network quality of service (QoS) and application QoS. First, dual roles of user behaviors are studied and the characteristics are extracted where the user experience is correlated with user interactive behaviors. Furthermore, we categorize QoE factors into three dimensions and build the metric system. Then we perform the subjective tests and investigate the relationships among network path quality, user behaviors, and QoE. Ultimately, we employ the back propagation neural network (BPNN) to validate our analysis and model. Through the simulation experiment of mathematical and BPNN, the dual effects of user interaction behaviors on the reflection and influence of QoE in the video stream are analyzed, and the QoE metric system and evaluation model are established. 相似文献