流媒体课件生成器AuSmile的设计与实现

同步多媒体合成语言（SMIL）是W3C制定的对多种媒体（视频，音频及静止图象等）之间的时间与空间关系进行定义的一种语言，SMIL的出现对于创作新型的包含有时间同步信息的多媒体课件有开创性意义．本文着重介绍一种能进行创作设计SMIL多媒体课件的平台。     

在课件制作系统中SMIL的应用研究

概括的介绍了同步多媒体集成语言SMIL,分析和设计了一个应用SMIL语言的多媒体课件制作系统,该系统具备自动生成视频和幻灯图片同步播放的课件功能。     

在课件制作系统中SMIL的应用研究

概括的介绍了同步多媒体集成语言SMIL,分析和设计了一个应用SMIL语言的多媒体课件制作系统,该系统具备自动生成视频和幻灯图片同步播放的课件功能。     

在课件制作系统中SMIL的应用研究

概括的介绍了同步多媒体集成语言SMIL,分析和设计了一个应用SMIL语言的多媒体课件制作系统,该系统具备自动生成视频和幻灯图片同步播放的课件功能.     

SMIL在移动流媒体内容分发网络中的应用

本文首先简要回顾了同步的多媒体集成语言(SMIL语言)及其应用领域，然后重点介绍SMIL在移动流媒体内容分发网络中的应用及其工作原理，并对该系统引入了个性化的SMIL制作技术。     

基于SMIL的多媒体网络教学系统的设计与实现

简述了同步多媒体集成语言SMIL，介绍了基于SMIL设计的一个多媒体网络教学系统的体系结构、功能和实现技术。使用所开发的系统，教师能轻松地制作出多媒体课件，实现课程的网上直播；学生能实时同步地收看教师授课的音频、视频和教师机屏幕图像信息，并可通过文字交流窗口进行实时文字交流；此外，学生在课后能随时自主点播课件。所开发的系统经在授课中试用，取得了良好效果。     

基于C#的SMIL多媒体融合编辑系统

为满足多媒体融合内容撰写的需要,基于C#开发了同步多媒体集成语言SMIL（Synchronized Multimedia Integration Language）多媒体融合编辑系统SMIL Producer,解决了SMIL文档解析、时间轴编辑等关键问题。系统采用可视化的编辑界面,通过时间轴操作控制多种媒体素材的集成播放方式,为数字内容的SMIL融合提供了便捷的工具。     

SMIL多媒体时间同步参考模型的提出和实现

SMIL首先将媒体对象组织成由时间控制的树结构形式。通过进一步完善和扩展，最终扩展成图。图结构的复杂度保证了SMIL控制效果的多样性，实际上，SMIL的主要功能都是建立在一个基于XML环境的时间同步模型上，该时间同步模型可以理解成一个三层的系统。本文提出了定义的系统层的SMIL时间同步参考模型。该模型重点描述如何由外来的交互事件来引发所谓的时间控制命令以达到交互控制的效果。根据处理内容的不同，整个SMIL时间同步参考模型基本可以分为四个功能模块：予取准备模块，同步进间依赖关系模块。确定时间表模块和同步时间控制模块。     

SMIL多媒体时间同步参考模型的提出和实现

SMIL首先将媒体对象组织成由时间控制的树结构形式，通过进一步完善和扩展，最终扩展成图。图结构的复杂度保证了SMIL控制效果的多样性。实际上，SMIL的主要功能都是建立在一个基于XML环境的时间同步模型上，该时间同步模型可以理解成一个三层的系统。本文提出了定义在系统层的SMIL时间同步参考模型。该模型重点描述如何由外来的交互事件来引发所谓的时间控制命令以达到交互控制的效果。根据处理内容的不同，整个SMIL时间同步参考模型基本可以分为四个功能模块：预取准备模块，同步时间依赖关系模块，确定时间表模块和同步时间控制模块。     

SMIL2.0的新功能及其应用

介绍了SMIL(同步多媒体集成语言)的特点和SMIL2．0的新功能，重点阐述了SMIL2．0的过渡功能，并结合VB实现了一个能够实现图片过渡的动画编辑软件。     

Improving SMIL with NCM Facilities

SMIL is an XML-based language for specifying documents with temporal and spatial synchronization relationships, recommended by the W3C. However, SMIL has some limitations as a hypermedia authoring language. In order to overcome these limitations, this work presents the integration of SMIL documents with HyperProp, a hypermedia system based on an object-oriented model called NCM (Nested Context Model). As benefits, the integration makes both NCM facilities and HyperProp authoring and formatting tools available for SMIL documents. Furthermore, this work presents how the SMIL language can be extended to incorporate NCM facilities through the inclusion of new XML elements and attributes found in NCL, the NCM declarative language. Among the facilities, we can highlight the possibility of reusing document components and their presentation characteristics, offering flexibility in temporal specifications, adapting a document presentation according to user navigation and specifying n-ary relationships expressing causality or constraint among components.     

A dynamic Petri net model for iterative and interactive distributed multimedia presentation

Object Composition Petri Nets, Priority Petri Nets, Dynamic OCPN, and Enhanced P-Nets have extended the original Petri Net to achieve the modeling of media synchronization and asynchronous user interactions during multimedia playback. The dynamic Petri Net (DPN) has been conceptualized to tackle existing problems in these two areas of modeling distributed multimedia systems. DPN features dynamic modeling elements which allows iteration and hence is able to reduce graph sizes of synchronous playback models while allowing greater details to be shown. DPN also introduces asynchronous event handling techniques that are powerful and effective. DPN was used in the design and modeling of a multimedia orchestration tool which is a typical representation of an application that works in a distributed multimedia system.     

Loosely-coupled approach towards multi-modal browsing

Contemplating the concept of universal-access multi-modal browsing comes as one of the emerging killer technologies that promises broader and more flexible access to information, faster task completion, and advanced user experience. Inheriting the best from GUI and speech, based on the circumstances, hardware capabilities, and environment, multi-modalitys great advantage is to provide application developers with a scalable blend of input and output channels that may accommodate any user, device, and platform. This article describes a flexible multi-modal browser architecture, named Ferda the Ant, which reuses uni-modal browser technologies available for VoiceXML, WML, and HTML browsing. A central component, the Virtual Proxy, acts as a synchronization coordinator. This browser architecture can be implemented in either a single client configuration, or by distributing the browser components across the network. We have defined and implemented a synchronization protocol to communicate the changes occurring in the context of a component browser to the other browsers participating in the multi-modal browser framework. Browser wrappers implement the required synchronization protocol functionality at each of the component browsers. The component browsers comply with existing content authoring standards, and we have designed a set of markup-level authoring conventions that facilitate maintaining the browser synchronization .     

Constructing SCORM compliant course based on High-Level Petri Nets

With rapid development of the Internet, e-learning system has become more and more popular. Currently, to solve the issue of sharing and reusing of teaching materials in different e-learning system, Sharable Content Object Reference Model (SCORM) is the most popular standard among existing international standards. In SCORM standard, the Sequencing and Navigation (SN) defines the course sequencing behavior, which controls the sequencing, selecting and delivering of a course, and organizes the content into a hierarchical structure, namely Activity Tree (AT). However, the structures with complicated sequencing rules of Activity Tree (AT) in SCORM make the design and creation of course sequences hard. Therefore, how to provide a user-friendly authoring tool to efficiently construct SCORM compliant course becomes an important issue. However, before developing the authoring tool, how to provide a systematic approach to analyze the sequencing rules and to transform the created course into SCORM compliant are our concerns.Therefore, in this paper, based upon the concept of Object Oriented Methodology (OOM), we propose a systematic approach, called Object Oriented Course Modeling (OOCM), to construct the SCORM compliant course. High-Level Petri Nets (HLPN), which is a powerful language for system modeling and validation, are applied to model the basic sequencing components, called Object-Oriented Activity Tree (OOAT), for constructing the SCORM course with complex sequencing behaviors. Every OOAT as a middleware represents a specific sequencing behavior in learning activity and corresponding structure with associated sequencing rules of AT in SCORM. Thus, these OOATs can be efficiently used to model and construct the course with complex sequencing behaviors for different learning guidance. Moreover, two algorithms, called PN2AT and AT2CP, are also proposed to transform HLPN modeled by OOATs into a tree-like structure with related sequencing rules in Activity Tree (AT) and package the AT and related physical learning resources into a SCORM compliant course file described by XML language, respectively. Finally, based upon the OOCM scheme, a prototypical authoring tool with graphical user interface (GUI) is developed. For evaluating the efficiency of the OOCM approach compared with existing authoring tools, an experiment has been done. The experimental results show that the OOCM approach is workable and beneficial for teachers/instructional designers.     

Interactive Multimedia Documents: A Modeling,Authoring and Rendering Approach

In this paper we present our research and development experience in the context of Interactive Multimedia Documents (IMDs). We define a rich model for such documents covering the issues of interaction and spatiotemporal compositions as means of representing the functionality of an IMD. We exploit the event concept to represent interaction, while complex interactions are covered by a rich algebraic and spatiotemporal event composition scheme. Based on the model we implemented an authoring methodology. Thereafter we present a generic framework for rendering (presenting) IMDs putting emphasis to the handling of interaction and to the temporal synchronization of media objects. The rendering system is implemented as a client-server architecture using Java and accompanying technologies. The implementation is suitable for WWW enabled interactive multimedia documents.     

同步多媒体集成语言在网络教学系统中的应用

结合流媒体技术介绍了流媒体的实现途径及其传输协议；SMIL语言的规范；基于SMIL的网络教学系统的体系结构；最后给出了SMIL在网络教学系统资源中的应用实例。     

基于Nexperia PNX的SMIL播放器的设计和实现

同步多媒体合成语言SMIL是W3C所推荐的XML的一种应用，其核心组成部分是时间选择和同步模块。它提供了一种用于集成与控制多种媒体的空间组合及时间同步机制。本文论述了SMIL的同步和事件机制，并利用飞利浦Nexperia PNX芯片实现了一个支持SMIL Basic的播放器。