A Scalable Toolkit for Designing Multimedia Authoring Environments

This paper introduces Kaomi, a scalable toolkit for designing authoring environments of multimedia documents. The underlying concept is to provide the designer of multimedia applications with a fast method to get an authoring system based on a set of synchronized views (the presentation view for displaying the document, the scenario view for showing the temporal organization of the document, ...) so that each view is the support of editing actions. Kaomi is flexible enough to support a variety of multimedia documents declarative formats. It is indeed a scalable toolkit since it provides facilities for extending and/or for modifying the resulting authoring environment. In addition, cross-platform portability is provided which allows operation in the heterogenous Internet environment. The use of Kaomi is mainly described through the design of two authoring environments: one for authoring a sub-set of the Smil standard of the W3C and the other one for Madeus, a constraint based multimedia language.     

基于SGI的多媒体创作工具的设计与实现

本文针对SGI图形工作站的特点,论述了基于SGI平台的多媒体创作工具AUTHOR的系统构造及其关键技术的实现。在媒体对象的同步中,采用时间流Petri网（TSPN）模型表示媒体数据流的同步、互斥等关系,用该模型结合“自上而下、逐步求精”的软件设计方法,描述了复杂多媒体表示系统中的媒体表示方案。     

Constraint Techniques for Authoring Multimedia Documents

Authoring a multimedia document requires to specify both its spatial layout and its temporal organization, i.e. when and where objects such as pictures, texts and videos appear/disappear on /from the screen and when objects such as audios and videos start/end to play. In this paper, we present some benefits authors can gain when using an authoring tool in which constraints are used to specify these two kinds of information. We describe our experience in building Madeus, a constraint-based environment to design multimedia documents and we point out technical problems that still need to be solved to more completely satisfy author requirements.     

Towards A New Authoring Methodology for Large-Scale Hypermedia Applications

As the amount of information technology increases, managing information resources, so that the correct people can find the information easily, becomes a critical issue. Hypermedia systems are considered one solution to this problem as they provide a means for representing higher level relationships between the underlying information. However, the amount of information available electronically is increasing at an accelerated rate. Using standard hypermedia authoring techniques, the effort required managing and maintaining large-scale hypermedia systems is enormous. Hypermedia authoring in the large requires new methodologies if it is going to be feasible.This paper presents a new model for building and structuring large-scale hypermedia applications. It describes a case study that explored the delivery of hypermedia information in an industrial environment on a small scale. Models and techniques developed for that case study were then refined and augmented so they could support the construction of large-scale hypermedia systems. In order to support such endeavors a new linking model is presented that allows the author to explicitly represent abstract concepts contained within the underlying information and interconnect them in some meaningful manner. A prototype system applying this linking technique is presented.     

符合SCORM规范的网络教材编辑工具的设计与实现

在对现有网络教材存在问题分析的基础上,通过对SCORM规范体系结构的研究提出了一个符合SCORM规范的网络教材编辑工具的实现方法,并利用Test Suite1.3版工具进行了标准测试,结果表明:利用本工具开发的教材包能够在RTE1.3环境中进行浏览及学习。     

多媒体创作工具设计与发展

随着现代教学手段的更新，多媒体教学以它真实直观、生动活泼的优势已经深入到每一学科的教学中。在实践教学中不断创新多媒体创作的工具使之更好地为教学服务。     

Multimedia Authoring with Hierarchical Timed Stream Petri Nets and Java

The expected benefits of modeling documents using a formal technique are twofold. First, the document's model can be checked against logical errors and unsatisfied timing constraints. Second, the same model can serve as reference for implementation purposes. In this context, the paper discusses a methodology for multimedia document design and implementation on heterogeneous and distributed platforms. The design trajectory starts with document modeling in Hierarchical Timed Stream Petri Nets, goes on with model checking against design errors, and continues with automatic translation of HTSPN models into a Java application. A tool prototype supports the methodology with a document editor, a simulator and a HTSPN to Java generator. Its use is exemplified on a guided tour of Florianopolis City, Brazil.     

协同多媒体菱工具中演示文档的同步模型

多媒体演示文档的协同菱对文档本身的结构与同步模型提出了一定的要求。为了便于面向对象的实现以及灵活多粒度的共享，提出了一个协同多媒体著作工具中分布交互式多媒体文档的同步模型。在此模型中，文档结构分为三层：页面层、对象组层及单媒体对象层，根据各层的特点，其同步分别采用基于跳转、基于事件及基于时间的策略。     

多媒体对象的组织与结构化检索

多媒体的结构化检索具有广泛的应用前景，但多媒体的检索技术尚不成熟。多媒体数据模型的复杂性，连续媒体基于内容检索的低效，以及缺乏适用的查询语言，都使得多媒体检索困难重重。英国肯特大学新近研制的多媒体检索系统在多媒体检索的相关领域取得了一定的突破。这个系统把用户视图中的多媒体对象组织成具有层次结构的虚拟数据库，使用属性来标识数据库中多媒体对象索引的特征；查询代理机允许用户直观地构造查询过程－包括一个结     

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.     

多媒体编著语言的设计与实现

根据基于时序逻辑和XYZ系统思想的多媒体数据描述模型,设计并实现了一种新的多媒体编著语言MAL(multimedia authoring language),该语言具有抽象描述、同步描述、逐步求精设计的描述等能力,将多媒体节目中媒体对象的建模和多媒体节目的设计过程在一个统一的框架内进行描述.以该语言实现为核心，研制了一个交互式可视多媒体编著环境.     

具有空间一致性的集成式混合现实三维用户创作工具

针对目前的混合现实用户创作工具对真实世界空间提示信息缺乏,以及对虚拟物体构建能力偏弱的问题,提出具有空间一致性的集成式混合现实三维用户创作工具.首先通过对自然特征的提取建立具有二维及三维信息的相对参照空间,然后识别已知尺度标志物,把相对参照空间转化为具有空间一致性的绝对参照空间,通过与商用三维数字内容创作工具的集成实现高效的虚拟物体构建与注册.实验结果表明,该工具能够实现“高效创作、准确注册”的目标.     

Multimedia Applications Development: Experiences

The multimedia applications developer is often presented with challenges that at times go beyond informatics technologies. In this paper, the MCRLab experiences in various multimedia applications development are described. Applications developed include tele-medicine, tele-conferencing with joint text editing, multimedia mail, multimedia fax, multimedia news-on-demand and shared multimedia workspaces in distance learning.     

Modelling Reactive Multimedia: Design and Authoring

Multimedia document authoring is a multifaceted activity, and authoring tools tend to concentrate on a restricted set of the activities involved in the creation of a multimedia artifact. In particular, a distinction may be drawn between the design and the implementation of a multimedia artifact.This paper presents a comparison of three different authoring paradigms, based on the common case study of a simple interactive animation. We present details of its implementation using the three different authoring tools, MCF, Fran and SMIL 2.0, and we discuss the conclusions that may be drawn from our comparison of the three approaches.Simon Thompson is grateful to the British Council for its funding of travel in support of the work reported here.Supported by an individual research grant from NSERC. This author’s research was performed, in part, at LIRMM, Montpellier, France.Supported by an individual research grant from NSERC.     

基于构件的分布式多媒体创作环境初探

以构件技术为基础,介绍了一个分布式多媒体创作环境的设计与实现过程,给出了该分布式多媒体创作环境的系统构成、实现策略,并就协同创作及相关技术进行了讨论。     

多媒体课件制作工具中时间线机制的设计与实现

文中介绍了时间线的基本概念,并根据其在多媒体课件的编辑与再编辑过程中对时间的可视化能力非常强的特点,结合多个编辑单元的功能扩展,提出了一种在课件编辑模块中具有多编辑窗口并且能够较好地处理多媒体同步的时间线机制的设计方法与实现方案。