Abstract
In this paper, a novel multimedia identification system based on quantum hashing is considered. Many traditional systems are based on binary hash which is obtained by encoding intermediate hash extracted from multimedia content. In the system considered, the intermediate hash values extracted from a query are encoded into quantum hash values by incorporating uncertainty in the binary hash values. For this, the intermediate hash difference between the query and its true-underlying content is considered as a random process. Then, the uncertainty is represented by the probability density estimate of the intermediate hash difference. The quantum hashing system is evaluated using both audio and video databases, and with marginal increment in computational cost, the quantum hashing system is shown to be more robust against various distortions than the binary hashing system using the same intermediate hash values.
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