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Distributed video sensors usually use fairly low-resolution images due to the limited transmission bandwidth in transmitting images. It is potential to enhance the captured low-resolution images using image resolution enhancement technique that is able to produce a high-resolution image from its low-resolution counterpart. The key challenge of image resolution enhancement is to preserve the edge structure...
This paper proposes a channel pattern noise based approach to guard speaker recognition system against playback attacks. For each recording under investigation, the channel pattern noise severs as a unique channel identification fingerprint. Denoising filter and statistical frames are applied to extract channel pattern noise, and 6 Legendre coefficients and 6 statistical features are extracted. SVM...
Considering the interaction of building-soil-tunnel, the raft foundation masonry building vertical crossed by double-line parallel shield tunnel was simulated by 3D MIDAS/GTS software, and the impact of construction on the building was analyzed. The results show that: When the distance between double-line parallel shield tunnel axis and building axis was zero (L=0m), after the left-line had already...
Based on the five convergence models for shallow tunneling, the settlement formulas of deep soil for oval convergent model and simplified top model were deduced. The results of five kinds of convergence models were compared by two examples. The results show that: The impact of soil friction angle on the settlement could not take into consideration in the oval convergent model and simplified top model...
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