Hierarchical Graph-based Media Content Representation for Real Time Search in Large Scale Multimedia Databases

N. Papadakis, N. Doulamis, and A. Doulamis (Greece)


Pattern recognition, image process, computer vision.


This paper presents a system architecture and the appropriate algorithms for confidential searching of multimedia digital libraries. The proposed scheme uses Middleware service layer that allows pre-processing of raw content with 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.

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