high-frequency sub-bands
Digital Image Watermarking using Combined DWT and DFRFT
... For the proposed method, its performance is shown for embedding the watermark data in different high frequency sub-bands and their combinations of transformed image.. Following observati[r] ...
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ENHANCEMENT OF LOW RESOLUTION IRIS IMAGES USING WAVELET TRANSFORM
... interpolated high frequency sub bands and the SWT high frequency sub bands have the same size so that they can be added with each ...corrected high ...
8
Image Enhancement based on Stationary Wavelet Transform, Integer Wavelet Transform and Singular Value Decomposition
... into sub bands having different frequency coefficients. The high frequency coefficients have been multiplied with the orthogonal matrix (hanger and aligner) coefficients, obtained using ...
6
FRAUD DETECTION IN CARD NOT PRESENT TRANSACTIONS BASED ON BEHAVIORAL PATTERN
... its high-frequency components, which is due to the smoothing caused by ...the high-frequency components of the ...different sub band images, namely, LL, LH, HL, and HH. ...
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Image Resolution Enhancement by using Wavelet Transform
... sharp high resolution image produced by proposed resolution enhancement ...different sub-bands [27]. After that three high frequency sub bands are ...to high ...
5
Title: A NOVEL ALGORITHM FOR SATILLITE IMAGE RESOLUTION ENHANCEMENT BASED ON DUAL-TREE COMPLEX WAVELET TRANSFORM (DT-CWT) AND NONLOCAL MEANS (NLM)
... losing high frequency contents (which results in ...obtain high-frequency sub ...the high-frequency sub bands and the low-resolution (LR) input ...The ...
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Image Super Resolution Using Wavelet Analysis
... the high frequency sub-bands obtained by DWT, correcting the high frequency sub-band estimation by using SWT high frequency sub-bands, and the ...
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Channel Estimation using OFDM for 4G
... of high bit rate digital communications over wireless channels, one often has to deal with transmission channels that exhibit a phenomenon known as fading or a highly time-varying frequency response over ...
5
An Efficient Hybrid Image Coding Scheme Combining Wavelets, Neural Networks and Differential Pulse Code Modulation for Effectual Image Compression
... needing high data rates for transmission demanding the innovation of efficient image compression ...different sub bands i.e the low frequency band coefficients are compressed by the DPCM while ...
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A High-Performance Circularly-Polarized Rectenna for Wireless Energy Harvesting at 1.85 and 2.45 GHz Frequency Bands
... allowing high operating ...The frequency-dependant input impedance of the receiving antenna was calculated and exported from HFSS and used as the internal impedance of the power source in all ...
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IRIS Template Classification Using Selective Sub Bands of Wavelets
... for high acceptance rate leads to large storage space and computational ...significant sub groups will reduce the above ...all frequency sub-bands in decomposition for classification ...
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EEG Signal Analysis Using Fuzzy Approximate Analysis towards Epileptic Seizure Detection
... different frequency bands using wavelet function and ...of Sub- bands using time domain High pass and Low pass filtering ...off frequency of low pass and High Pass filter ...
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Hybrid Super Resolution using SWT and CT
... SWT sub bands for image registration and a curvelet transform based interpolation to form a single high resolution ...8 sub bands. The four frequency components of each low ...
6
PubMedCentral-PMC5300895.pdf
... low frequency transmitter using a ...the high frequency receiver and recorded using an in-house LabVIEW (National Instruments ...the high frequency ...
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Design of Triple-Frequency Folded Slot Antenna for 2.4/3.5/5.2/5.8-GHz WLAN Applications
... Therefore, a slot loading CPW-fed folded slot antenna with triple- frequency operation for WLAN applications is proposed in this article. With pairs of different slots loaded in the folded slot, the proposed ...
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Cataract Detection
... low-high bands, the high-low bands and the high-high bands of the image at different scales, plus the low-low band of the image at coarsest ...other bands contain ...
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Materials' Insertion Loss at Three Frequency Bands
... The insertion loss of different materials has been measured at 2.4, 3.3 and 5.5 GHz bands. Thick concrete wall, thick concrete column and tree‘s insertion loss has been measured at vertical and horizontal ...
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Power Spectral Density Analysis of Purkinje Cell Tonic and Burst Firing Patterns From a Rat Model of Ataxia and Riluzole Treated
... Our work here describes the normal, ataxic and riluzole treated Purkinje cells outputs in terms of its frequencies and tries to determine the differences of the normal, atax- ia and treated group and tonic and burst ...
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A wavelet approximate entropy method for epileptic activity detection from EEG and its sub bands
... Through the complex and chaotic behavior of brain activity chaos related parameters are useful to identify- ing epilepsy. Entropies, fractal dimensions, Lyapunov exponents are main complexity parameters. Also artifi- ...
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A Recognition Algorithm for Wireless Capsule Gastroscopy Images
... Denote by F the ratio of numbers of the pixels with characteristic value to the number of all the pixels in the image matrix after quantification. It should be noted that the dimension of F is still high, ...
6