Secure and trusted distribution of multimedia content is a key issue for content creators, content providers and distributors, as they want to fight piracy and receive the revenues derived from their creativity work. The provision of trust and protection has not been already solved by the existing multimedia distribution mechanisms. Such mechanisms lie on proprietary architectures and tools, an...

Nanotechnology is providing the engineering community with a new set of tools to design and manufacture advanced devices which are able to generate, process and transmit multimedia content at the nanoscale. The wireless interconnection of pervasively deployed multimedia nano-devices with existing communication networks and ultimately the Internet defines a truly cyber physical system which is f...

The success of multimedia enabled community engines depends on a careful design of the digital media and the related communication/collaboration tools. However, the semantics of the multimedia contents in community communication and collaboration is hard to capture and complex to compute. With the opportunities given by the combination of metadata descriptions standards like MPEG-7 and server-s...

The motivation for this research work is the lack of a complete declarative way for representative spatiotemporal composition of objects in the current multimedia document standards and authoring tools. In this paper we define such a model which is based on a set of spatial and temporal relationships between actors in multimedia applications. Our work exploits existing approaches for spatial an...

E ver since the emergence of digitization, we’ve used the term multimedia to represent a combination of different kinds of media types, such images, audio files, and videos. Although the initial definition of multimedia was more technical, multimedia has become the central means for communicating and cooperating with others in our daily lives. With this shift, we have since moved from comprehen...

This paper proposes a new method for analyzing multimedia synchronization constraints based on the constraint graph and classification, which is essential in developing efficient support tools for constraintbased authoring systems. We specify the temporal relations between multimedia objects, and use a directed graph to represent the constraints among the objects in a multimedia scenario. We th...

Research groups and software companies have developed a number of multimedia collaboration tools such as Access Grid and Vannotea to archive collaborative objects such as audiovisual communications and digital annotations. Most of these tools are designed to process multimedia data streams, and it is not easy for their users to extend or modify them to support other types of data streams such a...

Nowadays, software and courseware play very important roles in school’s teaching and learning environment. CMAS is a fully web-based application which consists of two parts, content creation and management tools. The content part has five main functions which are storyboard template for content writing, a quality control standard tool to maintain the quality of the content created, a multimedia...