Results 11 to 20 of about 288,603 (325)
AIMS Electronics and Electrical Engineering, 2023 The role of diabetes mellitus in deteriorating the visual health of diabetic subjects has been affirmed precisely. The study of morphological features near the macular region is the most common method of investigating the impairment rate.
Manisha Bangar, Prachi Chaudhary
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Inverse scattering transform for continuous and discrete space‐time‐shifted integrable equations [PDF]
Studies in applied mathematics (Cambridge), 2023 Nonlocal integrable partial differential equations possessing a spatial or temporal reflection have constituted an active research area for the past decade.
M. Ablowitz +2 more
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Empirical Mode Decomposition-Based Feature Extraction for Environmental Sound Classification
Sensors, 2022 In environment sound classification, log Mel band energies (MBEs) are considered as the most successful and commonly used features for classification. The underlying algorithm, fast Fourier transform (FFT), is valid under certain restrictions.
Ammar Ahmed +3 more
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Pseudorandomness via the Discrete Fourier Transform [PDF]
IEEE Annual Symposium on Foundations of Computer Science, 2015 We present a new approach to constructing unconditional pseudorandom generators against classes of functions that involve computing a linear function of the inputs.
Parikshit Gopalan, D. Kane, Raghu Meka
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Efficient inverse Z-transform and pricing barrier and lookback options with discrete monitoring [PDF]
Social Science Research Network, 2022 We prove simple general formulas for expectations of functions of a random walk and its running extremum. Under additional conditions, we derive analytical formulas using the inverse $Z$-transform, the Fourier/Laplace inversion and Wiener-Hopf ...
S. Boyarchenko, S. Levendorskiĭ
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Improving DFT-Based Image Watermarking Using Particle Swarm Optimization Algorithm
Mathematics, 2021 Robust digital image watermarking is an information security technique that has been widely used to solve several issues related mainly with copyright protection as well as ownership authentication.
Manuel Cedillo-Hernandez +2 more
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2D Discrete Fourier Transform with simultaneous edge artifact removal for real-time applications [PDF]
International Conference on Field-Programmable Technology, 2015 Two-Dimensional (2D) Discrete Fourier Transform (DFT) is a basic and computationally intensive algorithm, with a vast variety of applications. 2D images are, in general, non-periodic, but are assumed to be periodic while calculating their DFTs.
Faisal Mahmood +3 more
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Pyrogenic carbon content of Sphagnum peat soils estimated using diffuse reflectance FTIR spectrometry [PDF]
Mires and Peat, 2022 Quantifying historical patterns of fire regimes in peatlands can help contextualise current fire behaviour and aid in planning on ecosystem and landscape scales.
Dominic M. Uhelski +5 more
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Processes, 2020 Hydrocyclones are extensively known as important separation devices which are used in many industrial fields. However, the general method to estimate device performance is time-consuming and has a high cost.
Guanghui Wang +5 more
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Generalized Discrete Fourier Transform With Nonlinear Phase [PDF]
IEEE Transactions on Signal Processing, 2010 Constant modulus transforms like discrete Fourier transform (DFT), Walsh transform, and Gold codes have been successfully used over several decades in several engineering applications, including discrete multi-tone (DMT), orthogonal frequency division multiplexing (OFDM) and code division multiple access (CDMA) communications systems. In this paper, we
A N Akansu, H Agirman-Tosun
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