Construction of 2-D directional filter bank by cascading checkerboard-shaped filter pair and CMFB
文献类型：期刊论文
| 作者 | Zhou, Zuo-feng1,2; Cheng, Yuan-yuan1; Shui, Peng-lang1 |
| 刊名 | signal processing
 |
| 出版日期 | 2008-10-01 |
| 卷号 | 88期号:10页码:2500-2510 |
| 关键词 | cosine modulated filter bank (CMFB) checkerboard-shaped filter pair (CSFP) directional filter bank (DFB) directional-frequency selectivity image denoising |
| ISSN号 | 0165-1684 |
| 通讯作者 | zuofeng zhou |
| 合作状况 | 其它 |
| 英文摘要 | in this paper, we propose a new approach to construct a 2-dimensional (2-d) directional filter bank (dfb) by cascading a 2-d nonseparable checkerboard-shaped filter pair and 2-d separable cosine modulated filter bank (cmfb). similar to diagonal subbands in 2-d separable wavelets, most of the subbands in 2-d separable cmfbs, tensor products of two 1-d cmfbs, are poor in directional selectivity due to the fact that the frequency supports of most of the subband filters are concentrated along two different directions. to improve the directional selectivity, we propose a new dfb to realize the subband decomposition. first, a checkerboard-shaped filter pair is used to decompose an input image into two images containing different directional information of the original image. next, a 2-d separable cmfb is applied to each of the two images for directional decomposition. the new dfb is easy in design and has merits: low redundancy ratio and fine directional-frequency tiling. as its application, the bls-gsm algorithm for image denoising is extended to use the new dfbs. experimental results show that the proposed dfb achieves better denoising performance than the methods using other dfbs for images of abundant textures. (c) 2008 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; technology |
| 学科主题 | 计算机应用其他学科（含图像处理） |
| 类目[WOS] | engineering, electrical & electronic |
| 研究领域[WOS] | engineering |
| 关键词[WOS] | image denoising algorithm ; contourlet transform ; wavelet domain ; design ; representation |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000257971400014 |
| 公开日期 | 2010-01-18 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/8221]  |
| 专题 | 西安光学精密机械研究所_动态光学成像研究室 |
| 作者单位 | 1.Xidian Univ, Natl Lab Radar Signal Proc, Xian 710071, Peoples R China 2.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Zuo-feng,Cheng, Yuan-yuan,Shui, Peng-lang. Construction of 2-D directional filter bank by cascading checkerboard-shaped filter pair and CMFB[J]. signal processing,2008,88(10):2500-2510. |
| APA | Zhou, Zuo-feng,Cheng, Yuan-yuan,&Shui, Peng-lang.(2008).Construction of 2-D directional filter bank by cascading checkerboard-shaped filter pair and CMFB.signal processing,88(10),2500-2510. |
| MLA | Zhou, Zuo-feng,et al."Construction of 2-D directional filter bank by cascading checkerboard-shaped filter pair and CMFB".signal processing 88.10(2008):2500-2510. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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