Wavelet

yasdama's picture

Novel Fractional Wavelet Transform with Closed-Form Expression

Journal Title, Volume, Page: 
International Journal of Advanced Computer Science and Applications (IJACSA) 01/2014; 5(1):182-187. DOI:10.14569/issn.2156-5570
Year of Publication: 
2014
Authors: 
K. O. O. Anoh
Mobile and Satellite Communication Research Centre, University of Bradford, United Kingdom
R. A. A. Abd-Alhameed
Mobile and Satellite Communication Research Centre, University of Bradford, United Kingdom
S. M. R. Jones
Mobile and Satellite Communication Research Centre, University of Bradford, United Kingdom
O. Ochonogor
Dept. of Electrical and Electronic Engineering, University of Westminster
Y. A. S. Dama
An-Najah National University, Nablus, Palestine
Current Affiliation: 
Department of Telecommunication Engineering, Faculty of Engineering and Information Technology, An-Najah National University, Nablus. Palestine
Preferred Abstract (Original): 

A new wavelet transform (WT) is introduced based on the fractional properties of the traditional Fourier transform. The new wavelet follows from the fractional Fourier order which uniquely identifies the representation of an input function in a fractional domain. It exploits the combined advantages of WT and fractional Fourier transform (FrFT). The transform permits the identification of a transformed function based on the fractional rotation in time-frequency plane. The fractional rotation is then used to identify individual fractional daughter wavelets. This study is, for convenience, limited to one-dimension. Approach for discussing two or more dimensions is shown.

Allam's picture

Optimizing the Wavelet Parameters to Improve Image Compression

Journal Title, Volume, Page: 
International Journal of Advances in Engineering & Technology, Sept 2012. ISSN: 2231-1963
Year of Publication: 
2012
Authors: 
Allam Mousa
Department of Telecommunication Engineering, Faculty of Engineering and Information Technology, An-Najah National University, Nablus. Palestine
Current Affiliation: 
Department of Telecommunication Engineering, Faculty of Engineering and Information Technology, An-Najah National University, Nablus. Palestine
Nuha Odeh
Department of Telecommunication Engineering, Faculty of Engineering and Information Technology, An-Najah National University, Nablus. Palestine
Preferred Abstract (Original): 

Wavelet compression technique is widely used to achieve high good compression factor. In this paper, certain experiments were performed to identify the importance and the sensitivity of this technique to various internal and external parameters. Compression factor and SNR are the main factors to be optimized here against many factors like; image type, division factor, subblock size. Changing these parameters has shown a significant change in the performance leading to verified steps on how to choose these parameters in order to optimize the performance to get better compression and quality

Nuha Odeh's picture

Optimizing The Wavelet Parameters To Improve Image Compressionn

Journal Title, Volume, Page: 
International Journal of Advances in Engineering & Technology, Sept 2012. ISSN: 2231-1963
Year of Publication: 
2012
Authors: 
Allam Mousa
Department of Electrical Engineering, Faculty of Engineering, An-Najah National University, Nablus, Palestine
Nuha Odeh
Department of Electrical Engineering, Faculty of Engineering, An-Najah National University, Nablus, Palestine
Current Affiliation: 
Department of Electrical Engineering, Faculty of Engineering, An-Najah National University, Nablus, Palestine
Preferred Abstract (Original): 
Wavelet compression technique is widely used to achieve high good compression factor. In this paper, certain experiments were performed to identify the importance and the sensitivity of this technique to various internal and external parameters. Compression factor and SNR are the main factors to be optimized here against many factors like; image type, division factor, subblock size. Changing these parameters has shown a significant change in the performance leading to verified steps on how to choose these parameters in order to optimize the performance to get better compression and quality
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