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The separation of non-stationary signals is a hot topic. The blind source separation algorithms based on time-frequency analysis can not only describe the time-domain feature and the frequency-domain feature of signals but also extract the time-varying feature of non-stationary signals. Blind source separation owns better performance in solving the problem of non-stationary signals separation. In...
Nowadays, many steganographic tools have been developed, and secret messages can be imperceptibly transmitted through public networks. This paper concentrates on steganalysis against spatial least significant bit (LSB) matching, which is the prototype of many advanced information hiding methods. Many existing algorithms deal with steganalysis problems by using the dependencies between adjacent pixels...
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