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Collaborative multimedia systems: synthesis of media objects

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3 Author(s)
Candan, K.S. ; Dept. of Comput. Sci. & Eng., Arizona State Univ., Tempe, AZ, USA ; Venkat Rangan, P. ; Subrahmanian, V.S.

When a group {/1,..., ln} 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 Lj wishes to access some media objects present at participant lk'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

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Knowledge and Data Engineering, IEEE Transactions on  (Volume:10 ,  Issue: 3 )