نتایج جستجو برای: wavelet transform and contourlet transform

تعداد نتایج: 16844332  

2005
Boaz Matalon Michael Elad Michael Zibulevsky

In this work we investigate the image denoising problem. One common approach found in the literature involves manipulating the coefficients in the transform domain, e.g. shrinkage, followed by the inverse transform. Several advanced methods that model the inter-coefficient dependencies were developed recently, and were shown to yield significant improvement. However, these methods operate on th...

Earthquake force, loading more than structural capacity, cracking, material fatigue and the other unpredicted events were undeniable in the structure life cycle in order that environmental conditions of the structure would be changed and treats health. Damage of structures such as crack, corrosion of the post tension cables from inappropriate grouting of the post tension structures and etc. can...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1390

insurers have in the past few decades faced longevity risks - the risk that annuitants survive more than expected - and therefore need a new approach to manage this new risk. in this dissertation we survey methods that hedge longevity risks. these methods use securitization to manage risk, so using modern financial and insurance pricing models, especially wang transform and actuarial concepts, ...

Journal: :IEEE Transactions on Signal Processing 2009

Journal: :Image Analysis & Stereology 2011

Journal: :International Journal of Computer Applications 2015

Journal: :International Journal for Research in Applied Science and Engineering Technology 2021

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