Tunable-Q contourlet transform for image representation
文献类型：期刊论文
| 作者 | Wang, Haijiang1,2,3; Yang, Qinke4; Li, Rui1,2; Yao, Zhihong5 |
| 刊名 | JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS
 |
| 出版日期 | 2013-02-01 |
| 卷号 | 24期号:1页码:147-156 |
| 关键词 | contourlet quality factor (Q-factor) anti-aliasing multiscale decomposition |
| 通讯作者 | Yang, QK (reprint author), NW Univ Xian, Coll Urban & Environm Sci, Xian 710069, Peoples R China. |
| 英文摘要 | A novel tunable-quality-factor (tunable-Q) contourlet transform for geometric image representation is proposed. The Laplacian pyramid in original contourlet decomposes a signal into channels that have the same bandwidth on a logarithmic scale, and is not suitable for images with different behavior in frequency domain. We employ a new tunable-Q decomposition defined in the frequency domain by which one can flexibly tune the bandwidth of decomposition channels. With an acceptable redundancy, this tunable-Q contourlet is also anti-aliasing and its basis is sharply localized in the desired area of frequency and spatial domain. Our experiments in nonlinear approximation and denoising show that the contourlet using a better-suitable quality factor can achieve a more promising performance and often outperform wavelets and the previous contourlets both in visual quality and in terms of peak signal-to-noise ratio. |
| WOS标题词 | Science & Technology ; Technology |
| 学科主题 | Automation & Control Systems; Engineering; Operations Research & Management Science |
| 类目[WOS] | Automation & Control Systems ; Engineering, Electrical & Electronic ; Operations Research & Management Science |
| 研究领域[WOS] | Automation & Control Systems ; Engineering ; Operations Research & Management Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000315160200019 |
| 源URL | [http://ir.iswc.ac.cn/handle/361005/7493]  |
| 专题 | 水保所科研产出--SCI_2013--SCI |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Peoples R China 2.Minist Water Resources, Yangling 712100, Peoples R China 3.Shanxi Normal Univ, Coll Urban & Environm Sci, Linfen 041004, Peoples R China 4.NW Univ Xian, Coll Urban & Environm Sci, Xian 710069, Peoples R China 5.N China Univ Water Resources & Elect Power, Coll Resources & Environm, Zhengzhou 450011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Haijiang,Yang, Qinke,Li, Rui,et al. Tunable-Q contourlet transform for image representation[J]. JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS,2013,24(1):147-156. |
| APA | Wang, Haijiang,Yang, Qinke,Li, Rui,&Yao, Zhihong.(2013).Tunable-Q contourlet transform for image representation.JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS,24(1),147-156. |
| MLA | Wang, Haijiang,et al."Tunable-Q contourlet transform for image representation".JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS 24.1(2013):147-156. |
入库方式： OAI收割
来源：水土保持研究所
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