Results 101 to 110 of about 441,365 (362)
Groups, Wavelets, and Wavelet Sets
, 2003 Wavelet and frames have become a widely used tool in mathematics, physics, and applied science during the last decade. This article gives an overview over some well known results about the continuous and discrete wavelet transforms and groups acting on $\mathbb{R}^n$.
Olafsson, Gestur, Speegle, Darrin
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Wavelet-based texture retrieval using generalized Gaussian density and Kullback-Leibler distance
IEEE Transactions on Image Processing, 2002 We present a statistical view of the texture retrieval problem by combining the two related tasks, namely feature extraction (FE) and similarity measurement (SM), into a joint modeling and classification scheme.
M. Do, M. Vetterli
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.This study investigates the bond quality of co‐extruded aluminum–titanium hybrid profiles, focusing on the lateral angular co‐extrusion (LACE) process. It examines how heat treatments (HT) affect intermetallic phase formation, bond strength, and material properties.
Norman Mohnfeld +9 more
wiley +1 more source
Face Recognition Based Wavelet-PCA Features and Skin Color Model
Journal of Engineering and Sustainable Development, 2011 In this paper, a face recognition system for personal identification using Discret Wavelet Transform(DWT), Principle component Analysis (PCA) and Back-propagation Neural Network is proposed. The system consists of three steps.
Ali Hussien Mary
doaj
WAVELETS AND WAVELET FRAMES ON THE 2-SPHERE
Contemporary Problems in Mathematical Physics, 2006 We review the construction of the continuous wavelet transform (CWT) on the 2-sphere by two methods, the group-theoretical approach and the geometrical method based on conformal invariance. Then we discuss the discretization of the spherical CWT and build associated discrete wavelet frames, first half-continuous ones (only the scale is discretized ...
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Advanced Engineering Materials, EarlyView.Phase diagrams of transition‐metal di‐pnictides have been efficiently and quickly explored by combinatorial deposition of transition‐metal films and subsequent antimonization enabling the study of compounds with volatile elements. In (Fe,Ni)Sb2 and the (Fe,Cr)Sb2 substitution series, phase separation has been evidenced between class‐A and B marcasites ...
Martin Kostka +8 more
wiley +1 more source
Novel computation of pulse transit time from multi-channel PPG signals by wavelet transform
Current Directions in Biomedical Engineering, 2016 Being able to accurately monitor blood pressure in a reliable, truly non-invasive manner is a highly sought after goal within the biomedical community.
Pielmuş Alexandru-Gabriel +6 more
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3D‐Printed Architected Material for the Generation of Foam‐Based Protective Equipment
Advanced Engineering Materials, EarlyView.This study investigates 3D‐printed architected structures as alternatives to traditional foams in protective gear. It focuses on customizing impact strength and damping through design and manufacturing integration. Testing shows these structures outperform conventional foams, offering enhanced customizability, lower weight, and tunable performance ...
Ali Zolfagharian +5 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Periodic submicron features are fabricated on 304 stainless steel using single and double femtosecond laser pulses. By adjusting polarization, fluence, and inter‐pulse delay, 1D and 2D nanostructures are formed. Enhanced hydrophobicity and dense surface‐enhanced Raman spectroscopy hotspots enable analyte detection down to 10−10 M with good ...
Balaji Baskar +3 more
wiley +1 more source
Arkiv för Matematik, 1993 Conditions for \(T \in S_ p\), where \[ Tf(x) =\int K(x,y) f(y)dy, \] \(S_ p\) is the Schatten-von Neumann class, are considered. In particular, Janson-Peetre paracommutators in connection with wavelet bases are studied.
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