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Xiao Zhou, Chengyou Wang and Ruiguang Tang
This channel estimation method can be utilized to improve the underwater acoustic communication and fifth-generation (5G) wireless communication systems.
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Xiao Zhou, Chengyou Wang, Zhi Zhang and Qiming Fu
Based on a deep understanding of all-phase digital filter (APDF) design and all-phase biorthogonal transform (APBT), this paper will further study the windowed all-phase digital filter (WAPDF) and windowed all-phase biorthogonal transform (WAPBT), discus...
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Yunpeng Zhang, Chengyou Wang, Xiaoli Wang and Min Wang
Watermarking techniques can be applied in digital images to maintain the authenticity and integrity for copyright protection. In this paper, scale-invariant feature transform (SIFT) is combined with local digital watermarking and a digital watermarking a...
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Heng Zhang, Chengyou Wang and Xiao Zhou
With the development of image processing technology, the copyright protection of digital images has become an urgent problem to be solved. As an effective method, the robust digital watermarking technique emerges at a historic moment. Currently, most rob...
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Xiaoyan Yu, Chengyou Wang and Xiao Zhou
With the popularity of network and the continuous development of multimedia technology, saving of network bandwidth and copyright protection of multimedia content have gradually attracted people?s attention. The fragile watermark for integrity authentica...
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