120 search results - page 8 / 24 » Spatial Adaptive Wavelet Thresholding for Image Denoising |
VIS
2004
IEEE
15 years 11 months ago
2004
IEEE
Noise reduction is an important preprocessing step for many visualization techniques that make use of feature extraction. We propose a method for denoising 2-D vector fields that ...
74
Voted
ICIP
2001
IEEE
15 years 11 months ago
2001
IEEE
In this paper, we present a new image denoising method based on adaptive subband decomposition (or adaptive wavelet transform) in which the filter coefficients are updated accordi...
ISCAS
2007
IEEE
15 years 3 months ago
2007
IEEE
— In this paper, a modified version of the complex directional pyramid (PDTDFB) is proposed. Unlike the previous approach, the new FB provides an approximately tight-frame decom...
ICIP
2001
IEEE
15 years 11 months ago
2001
IEEE
We describe approximate digital implementations of two new mathematical transforms, namely, the ridgelet transform [3] and the curvelet transform [7, 6]. Our implementations offer...
ICIP
2002
IEEE
15 years 11 months ago
2002
IEEE
Coupling the periodic time-invariance of the wavelet transform with the view of thresholding as a projection yields a simple, recursive, wavelet-based technique for denoising sign...