Results 21 to 30 of about 489,037 (244)
Face Retrieval Using Image Moments and Genetic Algorithm [PDF]
Engineering and Technology Journal, 2016 Content-based image retrieval has been developed in numerous fields. This provides more active management and retrieval of images than the keyword-based method.
Wathiq Najah Abdullah +1 more
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Wavelets and pre-wavelets in low dimensions
Journal of Approximation Theory, 1992 Denote by \(L^ 2\) the space of \(\ell\)-periodic functions \(\varphi\) such that \(\varphi^ 0:=\sum_ j|\varphi(\cdot-j)|\in L^ 2([0,1]^ s)\) (all the sums in this review will be taken over \(Z^ s)\). It follows that \(L^ 2\) is a subspace of \(L^ 2(\mathbb{R}^ s)\) containing the functions with fast exponential decay and, in particular, the compactly ...
Sherman D. Riemenschneider, Zuowei Shen
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Michigan Mathematical Journal, 1996 Let \(T\) and \(D\) be the translation and unitary dilation operators on \(L^2(\mathbb{R})\) given by \((Tf)(t)= f(t- 1)\) and \((Df)(t)=\sqrt 2f(2t)\). An orthogonal wavelet for a subspace \(X\) of \(L^2(\mathbb{R})\) is a unit vector \(\psi\in X\) such that \(\{D^nT^m\psi: n,m\in\mathbb{Z}\}\) is an orthonormal basis of \(X\).
Dai, Xingde, Lu, Shijie
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Elliptic-Cylindrical Wavelets: The Mathieu Wavelets [PDF]
IEEE Signal Processing Letters, 2004 10 pages, 2 ...
M. M. S. Lira +2 more
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Design of Gm-C wavelet filter for on-line epileptic EEG detection [PDF]
, 2019 Copyright © 2019 The Institute of Electronics, Information and Communication EngineersAnalog filter implementation of continuous wavelet transform is considered as a promising technique for on-line spike detection applied in wearable electroencephalogram
He, Yigang +4 more
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Pengembangan Sistem Monitoring Kesehatan Jantung Tahan Noise Berbasis Sinyal EKG
Jurnal Sarjana Teknik Informatika, 2022 Penelitian mengenai sistem monitoring kesehatan jantung secara otomatis banyak dilakukan, namun masih belum menghasilkan output yang maksimal. Permasalahan utama dari penelitian yang sudah ada adalah akurasi sistem monitoring yang masih rendah terutama ...
Anggun Winursito
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IEEE Transactions on Information Theory, 2002 Summary: This paper studies the issue of optimal deconvolution density estimation using wavelets. The approach taken here can be considered as orthogonal series estimation in the more general context of the density estimation. We explore the asymptotic properties of estimators based on thresholding of estimated wavelet coefficients.
Jianqing Fan, Ja-Yong Koo
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Wavelets: a powerful tool for studying rotation, activity, and pulsation in Kepler and CoRoT stellar light curves [PDF]
, 2014 Aims. The wavelet transform has been used as a powerful tool for treating several problems in astrophysics. In this work, we show that the time-frequency analysis of stellar light curves using the wavelet transform is a practical tool for identifying ...
Bravo, J. P. +4 more
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Teknik, 2021 Communication is essential in conveying information from one individual to another. However, not all individuals in the world can communicate verbally. According to WHO, deafness is a hearing loss that affects 466 million people globally, and 34 million ...
Vincentius Abdi Gunawan +1 more
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Revista Brasileira de Ensino de Física, 2012 A transformada wavelet biortogonal e as bases wavelet são uma poderosa ferramenta para análise de dados multiescala, que tem vastas aplicações na física, matemática, computação e tecnologias. A teoria wavelet é construída, não apenas com o uso de uma nova e brilhante ideia, mas pela sinergia de conceitos e necessidades que já existiam a algum tempo em ...
Domingues, Margarete Oliveira +1 more
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