Title :
Optimization problem of shrinkage and thresholding policies in wavelet and the application to image processing
Author :
Wan, F.Y. ; Yuan, Z.D.
Author_Institution :
East China Normal Univ., Shanghai, China
Abstract :
The fractional power models for selecting shrinkage and thresholding values are given in wavelet denoising approaches. Some criteria and algorithm for selecting optimal shrinkage and thresholding value are derived through analysing several well-known shrinkage and thresholding policies and use them in 2D signal denoising. The simulation shows that these criteria are useful in the common sense
Keywords :
filtering theory; image processing; optimisation; wavelet transforms; 2D signal denoising; fractional power models; image processing; optimization problem; shrinkage policy; thresholding policy; wavelet denoising; Algorithm design and analysis; Filtering; Image processing; Noise reduction; Signal analysis;
Conference_Titel :
Intelligent Control and Automation, 2000. Proceedings of the 3rd World Congress on
Conference_Location :
Hefei
Print_ISBN :
0-7803-5995-X
DOI :
10.1109/WCICA.2000.862536
