Results 41 to 50 of about 697,042 (219)
Improved Watermarking Scheme Using Decimal Sequences [PDF]
, 2005 This paper presents watermarking algorithms using d-sequences so that the peak signal to noise ratio (PSNR) is maximized and the distortion introduced in the image due to the embedding is minimized. By exploiting the cross correlation property of decimal
Shaik, Ashfaq N
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ICTACT Journal on Image and Video Processing, 2018 Now a days digital watermarking appeared as a solution for copyright detection, protection and maintenance of important data. This paper deals with a new reversible watermarking algorithm based on adaptive prediction error expansion, which can recover ...
Chetna Sharma, Neeraj Jain
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Xstream-x264: Real-time H.264 streaming with cross-layer integration [PDF]
, 2011 We present Xstream-x264: a real-time cross-layer video streaming technique implemented within a well known open-source H.264 video encoder tool x264.
Boreli, Roksana +2 more
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Apply wavelet packet soft threshold noise reduction method to aviation gamma energy spectrum
He jishu, 2022 BackgroundWith the continuous development of nuclear technology, radioactive material exploration requires higher and higher detection accuracy of aerial gamma energy spectrometer, meanwhile, the wavelet packet soft threshold noise reduction method has ...
ZHANG Song +7 more
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A Cauchy-density-based rate controller for H.264/AVC in low-delay environments [PDF]
, 2009 The accuracy of the Cauchy probability density function for modeling of the discrete cosine transform coefficient distribution has already been proved for the frame layer of the rate control subsystem of a hybrid video coder.
de-Frutos-López, Manuel +3 more
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Application of energy difference spectrum of singular value in signal noise reductio
Gong-kuang zidonghua, 2014 In view of problem that the order of effective rank of matrix reconstruction is difficult to determine in singular value decomposition for noise reduction, a novel signal noise reduction method based on energy difference spectrum of singular value was ...
ZHANG Wenbi
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Noisy weak-lensing convergence peak statistics near clusters of galaxies and beyond
, 2010 Taking into account noise from intrinsic ellipticities of source galaxies, in this paper, we study the peak statistics in weak-lensing convergence maps around clusters of galaxies and beyond.
Albrecht +22 more
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The optimal design of a binaural sparse-aperture system
Results in Physics, 2020 Optical sparse-aperture (OSA) can greatly improve the spatial resolution of optical system. However, its optical designs are complex. This paper proposes a binaural sparse-aperture system with a simple and symmetrical structure, which is composed of ...
Luting Zhang +5 more
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The Correspondence between Convergence Peaks from Weak Lensing and Massive Dark Matter Haloes
, 2018 The convergence peaks, constructed from galaxy shape measurement in weak lensing, is a powerful probe of cosmology as the peaks can be connected with the underlined dark matter haloes.
Fan, Zuhui +6 more
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Comparative Analysis of Filters for Cancellation of Power-line-interference of ECG Signal [PDF]
International Journal Bioautomation, 2019 Filtering noises/artifacts from the electrocardiogram (ECG) can sustain the efficient clinical decision making. Comparative analysis of several filtering techniques is proposed: two adaptive noise cancellation techniques, Least Mean Square (LMS ...
Akash Kumar Bhoi +2 more
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