The development of computer graphics technologies has been bringing realism to computer generated multimedia data, e.g., scenes, human characters and other objects, making them achieve a very high quality level. However, these synthetic objects may be used to create situations which may not be present in real world, hence raising the demand of having advance tools for differentiating between re...

A casual glance on the web, or in your local newspaper, will quickly convince a reader that the two of the hottest fields in computer science right now are computer security and multimedia. Unfortunately, these fields often seem at odds with each other. This talk will take two case studies and show how the fields cause problems for each other. First, I discuss how multimedia can cause problems ...

Although the conventional concept of communication is the exchange of logical information, the exchange of Kansei has become very important recently, especially in the case of mobile telephone communications. In addition, it has been recognized that the use of the body, such as facial expressions and gestures, is essential in communications. These facts indicate that technologies that can suppo...

Computer-based multimedia learning environments — consisting of pictures (such as animation) and words (such as narration) — offer a potentially powerful venue for improving student understanding. How can we use words and pictures to help people understand how scientific systems work, such as how a lightning storm develops, how the human respiratory system operates, or how a bicycle tire pump w...

The recent popularity of research on topics of multimedia forensics justifies reflections on the definition of the field. This paper devises an ontology that structures forensic disciplines by their primary domain of evidence. In this sense, both multimedia forensics and computer forensics belong to the class of digital forensics, but they differ notably in the underlying observer model that de...

Static mixed-mode presentations consisting of verbal explanations illustrated with diagrams have long been used to communicate information. With the advent of multimedia, such presentations have become dynamic, by migrating from paper to the computer and by adding interactivity and animation. The conventional wisdom is that computer-based multimedia presentations are better than printed present...

In computer-participative multimedia applications, the computer not only manipulates media, but also digests it and performs independent actions based on media content. In this report I discuss an approach to the design of environments to support the development of computer-participative multimedia applications and I describe the implementation of the VuSystem, a computer-participative multimed...

Due to the latest developments in communication, computing, and storage technologies , multimedia services and applications are being deployed for various applications such as entertainment, health care, smart homes, security and surveillance, and intelligent environments. The special issue focuses on research challenges and issues related to multimedia applications. Scheibe et al. in their pap...

How can we help students to understand scientific explanations of cause-and-effect systems, such as how a pump works, how the human respiratory system works, or how lightning storms develop? One promising approach involves multimedia presentation of explanations in visual and verbal formats, such as presenting computer-generated animations synchronized with computer-generated narration or prese...

Along with the emergence of high-speed communication technologies and protocols, tools for multimedia applications are growing in terms of their variety and their performances, making multimedia data flows candidates to the integration in almost every computer system. We particularly focus on the case of the factory plant where audio and video equipments could soon take part in the control/moni...