Results 21 to 30 of about 248,691 (259)
Discrete Quadratic-Phase Fourier Transform: Theory and Convolution Structures
Entropy, 2022 The discrete Fourier transform is considered as one of the most powerful tools in digital signal processing, which enable us to find the spectrum of finite-duration signals.
Hari M. Srivastava +3 more
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The non-Fourier image reconstruction method for the STIX instrument
Open Astronomy, 2020 In this work we aimed to develop the image reconstruction algorithm without any analytical simplifications and restrictions. In our method we abandon Fourier’s approach to image reconstruction, and instead use the number of counts recorded in each ...
Siarkowski Marek +4 more
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Non-Fourier Information in Bandpass Noise Patterns
Vision Research, 1997 Random dot patterns and white-noise luminance textures are widely used in psychophysical experiments to study low-level visual processes. Because these noise patterns are broadband, bandpass filtered versions are employed to limit their frequency content.
KOVÁCS, ILONA, FEHÉR, ÁKOS
openaire +2 more sources
NEW APPROACH FOR 3D OBJECT RECOGNITION USING NON UNIFORM FOURIER AND MOMENTS COEFFICIENTS [PDF]
Journal of Engineering Science and Technology, 2017 In this paper, new descriptors have been proposed which are invariant to rotation and affinity transformations (Non Uniform Fourier and moments coefficients).
KHALID AZNAG +3 more
doaj
Non-Iterative DOA Estimation Using Discrete Fourier Transform Interpolation
IEEE Access, 2019 A fast and accurate non-iterative direction-of-arrival (DOA) estimation algorithm for multiple targets in additive white Gaussian noise is devised in this paper.
Yuan Chen +4 more
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Neural Fourier Energy Disaggregation
Sensors, 2022 Deploying energy disaggregation models in the real-world is a challenging task. These models are usually deep neural networks and can be costly when running on a server or prohibitive when the target device has limited resources. Deep learning models are
Christoforos Nalmpantis +2 more
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Fourier and Non-Fourier Pattern Discrimination Compared
Vision Research, 1996 Various studies indicate the existence of non-Fourier visual mechanisms that can extract non-luminance cues (e.g., contrast modulation) as well as a Fourier mechanism that deals with luminance variation only. We compared the pattern discrimination performance of the non-Fourier mechanism with that of the Fourier mechanism by using orientation ...
LIN, LI-MING, WILSON, HUGH R.
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IEEE Access, 2022 In massive machine-type communications (mMTC), grant-free access is a key enabler for a massive number of users to be connected to a base station with low signaling overhead and low latency. In this paper, new Fourier-based sequence sets are proposed for
Nam Yul Yu
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Non-Fourier heat transfer in a moving longitudinal radiative-convective dovetail fin
Case Studies in Thermal Engineering, 2023 The purpose of this research is to estimate the non-Fourier temperature distribution in dovetail fin. The Cattaneo-Vernotte heat model is utilized to estimate heat conduction behavioral patterns in dovetail fin.
Fehmi Gamaoun +7 more
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FEBS Open Bio, EarlyView.Aged human bmMSCs are seeded in the scaffold. Osteoblastic induction can slightly increase cell's bone‐forming activity to produce bone‐like tissues, shown as the sporadic xylenol orange‐stained spots (the lower left image). Notably, pioglitazone plus EGCG co‐treatment dramatically increases cell's bone‐forming activity and bone‐like tissue production (
Ching‐Yun Chen +6 more
wiley +1 more source