نتایج جستجو برای: wilson wavelets

تعداد نتایج: 25137  

2010
RYSZARD S. CHORAŚ

Abstract: In this article we present problem recognizing gestures and signs executed by hands. Gesture recognition is the process by which gestures formed by a user interact with the computer or is the element of the special signs language to convey meaning.We propose a methods for the recognition of hand gestures using Gabor wavelets (GW ), Radon transform (RT ) and texture features for gestur...

2001
Bin Han

Tensor product (separable) multivariate (bi)orthogonal wavelets have been widely used in many applications. On the other hand, non-tensor product (nonseparable) wavelets have been extensively argued in the literature to have many advantages over separable wavelets, for example, more freedom in design of nonseparable wavelets (such design is typically much more complicated and di±cult than the a...

Journal: :International Journal of Wavelets, Multiresolution and Information Processing 2020

Journal: :international journal of pediatrics 0
mehri najafi tehran university of medical sciences, tehran, iran. hosein alimadadi children's medical center, tehran university of medical sciences, tehran, iran leila arastoo tehran university of medical sciences, tehran, iran. farzaneh motamed tehran university of medical sciences, tehran, iran. ahmad khodadad tehran university of medical sciences, tehran, iran. gholamhosein fallahi tehran university of medical sciences, tehran, iran.

introduction: the wilson disease is an autosomal recessive disease in which the liver, central nervous system, eyes, blood and other parts of the body involved. timely diagnosis and appropriate treatment of the disease requires awareness of the clinical presentations of this disease in children.methods: this case series study included 62 patients with wilson disease who admitted to children&apo...

A novel and eective method based on Haar wavelets and Block Pulse Functions(BPFs) is proposed to solve nonlinear Fredholm integro-dierential equations of fractional order.The operational matrix of Haar wavelets via BPFs is derived and together with Haar waveletoperational matrix of fractional integration are used to transform the mentioned equation to asystem of algebraic equations. Our new met...

Journal: :Axioms 2013
Tohru Morita Ken-ichi Sato

The mollification obtained by truncating the expansion in wavelets is studied, where the wavelets are so chosen that noise is reduced and the Gibbs phenomenon does not occur. The estimations of the error of approximation of the mollification are given for the case when the fractional derivative of a function is calculated. Noting that the estimations are applicable even when the orthogonality o...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی شیمی 1391

با توجه به این که جریان 12011 که جریان بازگشتی به راکتور است دارای حدود ton/hr 2 مواد به عنوان others بود متخصصین پتروشیمی سعی در کشف مواد تشکیل دهنده ی این مقدار مجهول را داشتند که با شبیه سازی دینامیکی فرایند تا حدودی می توان حدس زد که ترکیب درصد این ton/hr2 مواد مجهول چیست. با توجه به نمودارهای غلظت گرفته شده از پتروشیمی و نظر خواهی از پرسنل این واحد این نتیجه بدست آمد که در واقع قسمت اصلی ...

2005
Kai Bittner

The biorthogonal wavelets introduced by Cohen, Daubechies, and Feauveau contain in particular compactly supported biorthogonal spline wavelets with compactly supported duals. We present a new approach for the construction of compactly supported spline wavelets, which is entirely based on properties of splines in the time domain. We are able to characterize a large class of such wavelets which c...

2004
Bin Han Zuowei Shen Hans G. Feichtinger

A new wavelet-based geometric mesh compression algorithm was developed recently in the area of computer graphics by Khodakovsky, Schröder, and Sweldens in their interesting paper [23]. The new wavelets used in [23] were designed from the Loop scheme by using ideas and methods of [26, 27], where orthogonal wavelets with exponential decay and pre-wavelets with compact support were constructed. Th...

2009
Carlos Campos Bracho

In this paper, we propose a novel algorithm for wavelet feature extraction as input to a supervised Multi-Class Classifier to improve classification performance. In particular, to select the best wavelets coefficient features, we first compute the energy-based variance distribution from wavelets coefficients at different subbands as well as the entropy-based fuzzy measures associated with the t...

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