Hierarchical graph-based media content representation for real time search in large scale multmedia databases

Authors:
Nikos Papadakis;Nikos Doulamis;Anastasios Doulamis
Affiliations:
Techological Education Instutite;Techical University of Crete;National Technical University of Athens, Athens, Greece
Venue:
Machine Graphics & Vision International Journal - Special issue on Image Databases
Year:
2010

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Abstract

This paper presents a system architecture and the appropriate algorithms for confidential searching of digital multimedia libraries. The proposed scheme uses the Middleware service layer that allows pre-processing of raw content with the technology owned by the Search Engine, without compromising the security of the original architecture in any way. The specific search algorithms described are a hierarchical graph structure algorithm for preprocessing, and a backtracking search algorithm that achieves good real-time performance (speed, and precision-recall values) under the given security constraints.