Abstract
In this paper, effective multiresolution image representations using a combination of 2-D filter bank (FB) and directional wavelet transform (WT) are presented. The proposed methods yield simple implementation and low computation costs compared to previous 1-D and 2-D FB combinations or adaptive directional WT methods. Furthermore, they are nonredundant transforms and realize quad-tree like multiresolution representations. In applications on nonlinear approximation, image coding, and denoising, the proposed filter banks show visual quality improvements and have higher PSNR than the conventional separable WT or the contourlet.
Original language | English |
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Pages (from-to) | 269-280 |
Number of pages | 12 |
Journal | IEEE Transactions on Image Processing |
Volume | 18 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2009 Jan 1 |
Externally published | Yes |
Keywords
- 2-D filter banks
- Directional filter banks
- Directional wavelet transforms
- Image coding
- Multiresolution representation
- Nonlinear approximation
- Wavelet transforms
ASJC Scopus subject areas
- Software
- Computer Graphics and Computer-Aided Design