Results 111 to 120 of about 2,085,623 (248)
MATEC Web of Conferences, 2017 Error Correcting Codes are playing a very important role in Video Watermarking technology. Because of very high compression rate (about 1:200) normally the watermarks can barely survive such massive attacks, despite very sophisticated embedding ...
Dziech Andrzej, Wassermann Jakob
doaj +1 more source
Practical multi-spectrum Hadamard transform spectrometer [PDF]
, 1975 Ming Hing Tai +3 more
openalex +1 more source
The Extended Hadamard Transform: Sensitivity-Enhanced NMR Experiments Among Labile and Non-Labile 1 Hs of SARS-CoV-2-derived RNAs. [PDF]
Chemphyschem, 2022 Kim J +9 more
europepmc +1 more source
Cointegrating Polynomial Regressions With Power Law Trends
Journal of Time Series Analysis, EarlyView.ABSTRACT The common practice in cointegrating polynomial regressions (CPRs) often confines nonlinearities in the variable of interest to stochastic trends, thereby overlooking the possibility that they may be caused by deterministic components. As an extension, we propose univariate and multivariate CPRs that incorporate power law deterministic trends.
Yicong Lin, Hanno Reuvers
wiley +1 more source
Computationally Efficient Robust Color Image Watermarking Using Fast Walsh Hadamard Transform
Journal of Imaging, 2017 Watermark is the copy deterrence mechanism used in the multimedia signal that is to be protected from hacking and piracy such a way that it can later be extracted from the watermarked signal by the decoder.
Suja Kalarikkal Pullayikodi +3 more
doaj +1 more source
Capital in Motion: Synthesizing the Circulation and Reproduction in a Multi‐Sector Growth Model
Metroeconomica, EarlyView.ABSTRACT This paper analyzes Capital in Motion (CIM) in a capitalist economy, based on Karl Marx's Capital, Volume 2. It examines the circuit of capital, distinguishing between stock and flow variables, and integrates a multi‐sector growth model that combines the circuit and turnover of capital with the reproduction scheme.
Takashi Satoh
wiley +1 more source
Computer-Aided Civil and Infrastructure Engineering, EarlyView.Abstract Rail defects significantly impact train operations, even posing serious safety risks. Existing methods can automatically collect images from the rail surface and identify apparent defects while facing challenges such as high false positive rates, visually subtle defects omit errors, and quantitative defect size measurement.
Peng Dai +9 more
wiley +1 more source
Hybrid Precoding-Beamforming Design With Hadamard RF Codebook for mmWave Large-Scale MIMO Systems
IEEE Access, 2017 This paper proposes a hybrid structure for multi-stream large-scale multi-input multi-output (MIMO) beamforming systems, in single-user scenario, using a Hadamard radio frequency (RF) codebook with low-bit resolution phase shifters. We show that Hadamard
Hussein Seleem +2 more
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Laplace Transforms via Hadamard Factorization [PDF]
, 2003 Fuchang Gao +3 more
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Low‐complexity real‐time detection Transformer for identifying bridge vehicle loads
Computer-Aided Civil and Infrastructure Engineering, EarlyView.Abstract Vehicle load identification (VLI) is pivotal for bridge health monitoring, safety assessment, and intelligent maintenance. However, computer vision‐based VLI is confronted by two critical challenges, that is, compromised identification accuracy under dynamic scene and computational constraints imposed by edge monitoring devices. To this end, a
Longfei Chang +7 more
wiley +1 more source