2 research outputs found
A generic service management architecture for multimedia multipoint communications
With rapid advances in multimedia processing technologies, and in high bandwidth network technologies, new kinds of multimedia applications are now emerging. These applications require real-time, multimedia, and multipoint interactions involving multiple communicating entities and leading to a need of more sophisticated communication control functionalities. In this paper, a generic integrated and flexible service management architecture for multimedia multipoint communications is proposed, which offers three main generic functions, namely Quality of Service (QoS) negotiation, QoS monitoring and control, and session management
Collaborative Multimedia Systems: Synthesis of Media Objects
When a group I_1,... ,I_n of individuals wishes to collaboratively
construct a complex multimedia document, the first requirement is that
they be able to manipulate media-objects created by one another. For
instance, if individual I_j wishes to access some media objects present at
participant I_k's site, he must be able to; (1) retrieve this object from
across the network, (2) ensure that the object is in a form that is
compatible with the viewing/editing resources he has available at his
node, and (3) ensure that the object has the desired quality (such as
image size and resolution). Furthermore, he must be able to achieve these
goals at the lowest possible cost. In this paper, we develop a theory of
media objects, and present optimal algorithms for collaborative object
sharing/synthesis of the sort envisaged above. We then extend the
algorithms to incorporate quality constraints (such as image size) as well
as distribution across multiple nodes. The theoretical model is validated
by an experimental implementation that supports the theoretical results.
(Also cross-referenced as UMIACS-TR-96-8