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Data Hiding in MPEG Video Files Using Multivariate Regression and Flexible Macroblock Ordering
This paper proposes two data hiding approaches using compressed MPEG video. The first approach hides message bits by modulating the quantization scale of a constant bitrate video. A payload of one message bit per macroblock ...
Robust Polynomial Classifier Using L1-norm minimization
In this paper we present a robust polynomial classifier based on L1-norm minimization. We do so by reformulating the classifier training process as a linear programming problem. Due to the inherent insensitivity of the ...