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A novel binary watermarking algorithm has been proposed based on the Fractional Fourier Transform (FRFT) and the digital watermarking techniques. The 0, 1 sequence are corresponded to two different random sequences here by considering the strong practicability of the binary watermarks and the strong robustness of the sequence watermarks. The good performance in experiments shows the strong robustness...
Multiple Description Coding (MDC) as an efficient method to solve the network fading problems, has been paid more and more attention these years. A novel three-channel MDC framework based on the orientation tree structure of the wavelet image and Vector Quantization (VQ) coding algorithm is introduced in this paper. The redundancy is introduced by the repeated coding of the same orientation information...
A novel MDC framework based on the spatial frequency quantization (SFQ) is proposed in this article. Different from other algorithms, this new three channel framework formed by using the orientation information optimization method based on the SFQ algorithm. According to the three different orientations, i.e., vertical, horizontal and diagonal directions, we use the gross and fine optimization method...
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