SNR analysis and Hadamard mask modification of DMD Hadamard Transform Near-Infrared spectrometer
Sign Up to like & getrecommendations! Published in 2017 at "Optics Communications"
DOI: 10.1016/j.optcom.2016.07.086
Abstract: Abstract The noise of Hadamard Transform (HT) Near Infrared (NIR) spectrometer includes not only the detector circuit noise but also the illumination noise. Hadamard Transform reduces the detector noise while increases the illumination noise. If… read more here.
Keywords: hadamard transform; method; hadamard mask; spectrometer ... See more keywords
Coupling Online Size Exclusion Chromatography with Charge Detection-Mass Spectrometry Using Hadamard Transform Multiplexing.
Sign Up to like & getrecommendations! Published in 2024 at "Analytical chemistry"
DOI: 10.1021/acs.analchem.4c03248
Abstract: Charge detection mass spectrometry (CD-MS) is a powerful technique for the analysis of large, heterogeneous biomolecules. By directly measuring the charge states of individual ions, CD-MS can measure the masses from spectra where conventional deconvolution… read more here.
Keywords: detection mass; hadamard transform; charge detection; charge ... See more keywords
Pauli decomposition via the fast Walsh-Hadamard transform
Sign Up to like & getrecommendations! Published in 2024 at "New Journal of Physics"
DOI: 10.1088/1367-2630/adb44d
Abstract: The decomposition of a square matrix into a sum of Pauli strings is a classical pre-processing step required to realize many quantum algorithms. Such a decomposition requires significant computational resources for large matrices. We present… read more here.
Keywords: fast walsh; matrix; pauli decomposition; decomposition ... See more keywords
Resolution-enhanced single-pixel imaging using the Hadamard transform matrix
Sign Up to like & getrecommendations! Published in 2023 at "Chinese Physics B"
DOI: 10.1088/1674-1056/accf7d
Abstract: In this paper, we propose a single-pixel imaging (SPI) method to achieve a higher-resolution image via the Hadamard transform matrix. Unlike traditional SPI schemes, this new method recovers images by correlating single-pixel signals with synchronized… read more here.
Keywords: pixel imaging; hadamard transform; transform; transform matrix ... See more keywords
Efficient Computation for Discrete Fractional Hadamard Transform
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Circuits and Systems I: Regular Papers"
DOI: 10.1109/tcsi.2024.3441834
Abstract: This paper introduces a new fast algorithm for the discrete fractional Hadamard transform (FHT). The proposed algorithm demonstrates superior computational efficiency. For data lengths ranging from $2 \leq N \leq 1024$ , our algorithm achieves… read more here.
Keywords: fractional hadamard; discrete fractional; proposed algorithm; hadamard transform ... See more keywords
Real-Valued Discrete Fractional Hadamard Transform: Fast Algorithms and Implementations
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Transactions on Circuits and Systems I: Regular Papers"
DOI: 10.1109/tcsi.2025.3534295
Abstract: This paper introduces a new real-valued discrete fractional Hadamard transform (RFHT) designed to address the issues of high computational complexity and large storage demands found in the traditional discrete fractional Hadamard transform (FHT) and its… read more here.
Keywords: real valued; fractional hadamard; discrete fractional; hadamard transform ... See more keywords
Efficient Encrypted Images Filtering and Transform Coding With Walsh-Hadamard Transform and Parallelization
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Image Processing"
DOI: 10.1109/tip.2018.2802199
Abstract: Since homomorphic encryption operations have high computational complexity, image applications based on homomorphic encryption are often time consuming, which makes them impractical. In this paper, we study efficient encrypted image applications with the encrypted domain… read more here.
Keywords: hadamard transform; image; efficient encrypted; walsh hadamard ... See more keywords
Adaptive robust watermarking scheme based on RIME optimization with integer wavelet transform, singular value decomposition, and Hadamard transform
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Electronic Imaging"
DOI: 10.1117/1.jei.33.5.053026
Abstract: Abstract. Existing watermarking schemes typically use binary or grayscale images as watermarks, which cannot meet the needs for color image copyright protection in the Internet of Things environment. To address these issues, we propose an… read more here.
Keywords: robust watermarking; scheme; adaptive robust; hadamard transform ... See more keywords
A Robust image watermarking for copyright protection using Multiresolution Walsh-Hadamard transform and Schur using Differential evolution
Sign Up to like & getrecommendations! Published in 2022 at "F1000Research"
DOI: 10.12688/f1000research.124720.1
Abstract: \textit{Background} The proposed watermarking framework is based on the multi-resolution Walsh-Hadamard Transform (MR-WHT) along with Schur factorization. For embedding, the cover image is converted into a frequency domain using MR-WHT before Schur factorization is applied.… read more here.
Keywords: hadamard transform; walsh hadamard; differential evolution; image ... See more keywords
The Improvement on the Performance of DMD Hadamard Transform Near-Infrared Spectrometer by Double Filter Strategy and a New Hadamard Mask
Sign Up to like & getrecommendations! Published in 2019 at "Micromachines"
DOI: 10.3390/mi10020149
Abstract: In the Hadamard transform (HT) near-infrared (NIR) spectrometer, there are defects that can create a nonuniform distribution of spectral energy, significantly influencing the absorbance of the whole spectrum, generating stray light, and making the signal-to-noise… read more here.
Keywords: hadamard transform; near infrared; hadamard; hadamard mask ... See more keywords