Results 11 to 20 of about 10,906 (262)
The Improvement of the Discrete Wavelet Transform
Mathematics, 2023 Discrete wavelet transforms are widely used in signal processing, data compression and spectral analysis. For discrete data with finite sizes, one always pads the data with zeros or extends the data into periodic data before performing the discrete ...
Zhihua Zhang
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The wavelet transforms technique in the computer-aided system for controlling the quarry unmanned vehicles [PDF]
E3S Web of Conferences, 2021 Introduction. Purpose of the work. Within the framework of the computer-aided system, a technology has been formed for the method of controlling the current trajectories (CTs) of unmanned vehicles (UMVs) when they move along routes in a quarry in open ...
Chicherin Ivan +3 more
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Local transformations with a singular wavelet
Informatika, 2020 The paper considers a local wavelet transform with a singular basis wavelet. The problem of nonparametric approximation of a function is solved by the use of the sequence of local wavelet transforms.
V. M. Romanchak
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Journal of King Saud University: Computer and Information Sciences, 2021 In the secured data communication scenario, image based Reversible Data Hiding (RDH) at transform domain is receiving its due popularity now. In research works so far, evaluation of transforms in RDH is very minor compared to that of image coding.
Ahmad Shaik, V. Thanikaiselvan
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The Berkeley Wavelet Transform: A Biologically Inspired Orthogonal Wavelet Transform [PDF]
Neural Computation, 2008 We describe the Berkeley wavelet transform (BWT), a two-dimensional triadic wavelet transform. The BWT comprises four pairs of mother wavelets at four orientations. Within each pair, one wavelet has odd symmetry, and the other has even symmetry. By translation and scaling of the whole set (plus a single constant term), the wavelets form a complete ...
Ben D. B. Willmore +3 more
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Using effective signal filtering methods to data processing from a fiber-optic temperature sensor [PDF]
Омский научный вестник, 2021 The article deals with signal processing of a fiber-optic temperature sensor using extremal filtering and filtering with Wavelet transforms. The aim of this work is to find a way to reduce the response time in a fiber-optic temperature sensor by ...
I. A. Ershov
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工程科学学报, 2015 This article introduces the design of symmetrical approximately shift-invariant fractional overcomplete wavelet transforms. First, a design scheme for the symmetrical low-pass filter with minimum-length was proposed, and then the corresponding highpass ...
SHEN Zheng-wei, SHI Tian, SHEN Ya-nan
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Regularization of EIT reconstruction based on multi-scales wavelet transforms
Current Directions in Biomedical Engineering, 2016 Electrical Impedance Tomography (EIT) intends to obtain the conductivity distribution of a domain from the electrical boundary conditions. This is an ill-posed inverse problem usually solved on finite element meshes.
Gong Bo +3 more
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Effective lattice structures for separable two-dimensional orthogonal wavelet transforms [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2022 Discrete two-dimensional orthogonal wavelet transforms find applications in many areas of analysis and processing of digital images. In a typical scenario the separability of two-dimensional wavelet transforms is assumed and all calculations follow the ...
Dariusz Puchala
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Image Compression Using Wavelet Methods [PDF]
INCAS Bulletin, 2013 This paper aims to study and compare the compression efficiencies of wavelet-bitmap and wavelet-Huffman. Both methods use wavelet to deduct a portion of the information in the image that can endure losing it without a significant disturbance in the image
Safaa S. MAHDI, Yasir S. AL - MOUSAWY
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