Speckle noise has been found to rotate an image's homomorphic elliptically distributed complex-wavelet coefficients. This work proposes a counter-rotation of these complex-wavelet coefficients as a means of mitigating speckle noise using principle component analysis. Simulations suggest that the proposed denoising technique offers superior visual quality, though its signal-to-mean-square-error ratio (S/MSE) is numerically comparable to the improvement obtained in customary median filtering and adaptive Wiener filtering.
Speckle-noise reduction via "rotated elliptical-thresholding" in an homomorphic complex-wavelet domain
IEEE International Conference on Image Processing 2005 ; 3 ; III-585
2005-01-01
515639 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
British Library Conference Proceedings | 2005
|Phase-preserving speckle reduction based on soft thresholding in quaternion wavelet domain
British Library Online Contents | 2012
|Adaptive wavelet domain thresholding denoising [5253-51]
British Library Conference Proceedings | 2003
|Wavelet-based method for speckle noise reduction in TV holography fringes
British Library Conference Proceedings | 1996
|British Library Online Contents | 2004
|