Xiaoxiong Tian

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In this paper, we propose a multimedia data management framework using GeM-Tree. GeM-Tree is a multidimensional tree-based index structure which provides a generalized framework to organize and retrieve images and videos seamlessly. In addition to supporting different multimedia data types and diverse representations, the proposed data management framework(More)
Web-based Information visualization is one of the key technologies for product development and cooperative work in the enterprises. But existence of heterogeneous systems make geometry modeling a heavy task especially in the narrow-band network condition. Thus, a geometry modeling framework is built based on service-based architecture. On the aided of X3D(More)
In this paper, we propose a simple and efficient reversible information-hiding scheme for VQ index tables. One secret bit can be embedded into one index pair if this pair passes the predefined restriction. Even if the index pair does not pass the test, it can still carry one secret bit if an additional indicator (a preserved index value) is attached. The(More)
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