Results 1 to 10 of about 517,038 (215)

FACE RECOGNITION USING DEEP NEURAL NETWORKS WITH THE COMBINATION OF DISCRETE WAVELET TRANSFORM, STATIONARY WAVELET TRANSFORM, AND DISCRETE COSINE TRANSFORM METHODS [PDF]

open access: yesJUTI: Jurnal Ilmiah Teknologi Informasi, 2020
Personal identification can be done by using face, fingerprint, palm prints, eye’s retina, or voice recognition which commonly called as biometric methods. Face recognition is the most popular and widely used among those biometric methods. However, there
Akbar, Afrizal Laksita   +2 more
core   +4 more sources

Wavelets and their use [PDF]

open access: yes, 2001
This review paper is intended to give a useful guide for those who want to apply discrete wavelets in their practice. The notion of wavelets and their use in practical computing and various applications are briefly described, but rigorous proofs of ...
Dremin, I. M.   +2 more
core   +3 more sources

On the energy leakage of discrete wavelet transform [PDF]

open access: green, 2008
The energy leakage is an inherent deficiency of discrete wavelet transform (DWT) which is often ignored by researchers and practitioners. In this paper, a systematic investigation into the energy leakage is reported.
Abry   +27 more
core   +3 more sources

Comments on "phase-shifting for nonseparable 2-D haar wavelets" [PDF]

open access: yes, 2009
In their recent paper, Alnasser and Foroosh derive a wavelet-domain (in-band) method for phase-shifting of 2-D "nonseparable" Haar transform coefficients. Their approach is parametrical to the (a priori known) image translation.
Andreopoulos, Y
core   +1 more source

The near shift-invariance of the dual-tree complex wavelet transform revisited [PDF]

open access: yes, 2012
The dual-tree complex wavelet transform (DTCWT) is an enhancement of the conventional discrete wavelet transform (DWT) due to a higher degree of shift-invariance and a greater directional selectivity, finding its applications in signal and image ...
Barri, Adriaan   +2 more
core   +2 more sources

A recursive scheme for computing autocorrelation functions of decimated complex wavelet subbands [PDF]

open access: yes, 2010
This paper deals with the problem of the exact computation of the autocorrelation function of a real or complex discrete wavelet subband of a signal, when the autocorrelation function (or Power Spectral Density, PSD) of the signal in the time domain (or ...
Aelterman, Jan   +3 more
core   +1 more source

Segmentwise Discrete Wavelet Transform [PDF]

open access: yes, 2012
Dizertační práce se zabývá algoritmy SegDWT pro segmentový výpočet Diskrétní Waveletové Transformace – DWT jedno i vícedimenzionálních dat. Segmentovým výpočtem se rozumí způsob výpočtu waveletové analýzy a syntézy po nezávislých segmentech (blocích) s ...
Průša, Zdeněk
core  

Integrasi Discrete Wavelet Transform dan Singular Value Decomposition pada Watermarking Citra untuk Perlindungan Hak Cipta [PDF]

open access: yes, 2015
Tren masalah watermarking pada sekarang ini adalah bagaimana mengoptimalkan trade-off antara imperceptibility (visibilitas) citra ter-watermark terhadap pengaruh distorsi dan robustness terhadap penyisipan watermark.
Chandra, J. (Jaya), Wahono, R. S. (Romi)
core  

Algorithms for segmented wavelet image transform [PDF]

open access: yes, 2009
Tato bakalářská práce se zabývá waveletovou transformací signálu se zaměřením na obrazové signály. První část je věnována základním metodám zpracování signálu. Přes Fourierovu transformaci se dostává k základům waveletové transformace.
Kořínek, Petr
core  

How hard is the euro area core? A wavelet analysis of growth cycles in Germany, France and Italy [PDF]

open access: yes, 2006
Using recent advances in time-varying spectral methods, this research analyses the growth cycles of the core of the euro area in terms of frequency content and phasing of cycles.
Crowley, P. M.   +2 more
core  

Home - About - Disclaimer - Privacy