Implementation of 2D Discrete Wavelet Transform by Number Theoretic Transform and 2D Overlap-Save Method
Joint Authors
Yang, Lina
Sun, Qi
Tang, Yuan Yan
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-05-26
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
To reduce the computation complexity of wavelet transform, this paper presents a novel approach to be implemented.
It consists of two key techniques: (1) fast number theoretic transform(FNTT) In the FNTT, linear convolution is replaced by the circular one.
It can speed up the computation of 2D discrete wavelet transform.
(2) In two-dimensional overlap-save method directly calculating the FNTT to the whole input sequence may meet two difficulties; namely, a big modulo obstructs the effective implementation of the FNTT and a long input sequence slows the computation of the FNTT down.
To fight with such deficiencies, a new technique which is referred to as 2D overlap-save method is developed.
Experiments have been conducted.
The fast number theoretic transform and 2D overlap-method have been used to implement the dyadic wavelet transform and applied to contour extraction in pattern recognition.
American Psychological Association (APA)
Yang, Lina& Tang, Yuan Yan& Sun, Qi. 2014. Implementation of 2D Discrete Wavelet Transform by Number Theoretic Transform and 2D Overlap-Save Method. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-15.
https://search.emarefa.net/detail/BIM-479311
Modern Language Association (MLA)
Yang, Lina…[et al.]. Implementation of 2D Discrete Wavelet Transform by Number Theoretic Transform and 2D Overlap-Save Method. Mathematical Problems in Engineering No. 2014 (2014), pp.1-15.
https://search.emarefa.net/detail/BIM-479311
American Medical Association (AMA)
Yang, Lina& Tang, Yuan Yan& Sun, Qi. Implementation of 2D Discrete Wavelet Transform by Number Theoretic Transform and 2D Overlap-Save Method. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-15.
https://search.emarefa.net/detail/BIM-479311
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-479311