Fast image inpainting using exponential-threshold POCS plus conjugate gradient
文献类型：期刊论文
| 作者 | Wang, S. Q.1; Zhang, J. H.2 |
| 刊名 | IMAGING SCIENCE JOURNAL
 |
| 出版日期 | 2014-03-01 |
| 卷号 | 62期号:3页码:161-170 |
| 关键词 | Projection onto convex sets Inpainting Exponential threshold Conjugate gradient Non-local restoration |
| ISSN号 | 1368-2199 |
| DOI | 10.1179/1743131X13Y.0000000053 |
| 文献子类 | Article |
| 英文摘要 | Image inpainting can remove unwanted objects and reconstruct the missing or damaged portions of an image. The projection onto convex sets (POCS) is a classical method used in image inpainting. However, the traditional POCS converges slowly due to the linear error threshold. We propose an exponential-threshold scheme, which greatly improves the convergence of the POCS. Although the exponential-threshold POCS can recover the image in about 20 iterations, it cannot reconstruct the image details very well even with hundreds of iterations. Thus, we append the non-local restoration to the exponential-threshold POCS to further refine the image details, and then we solve this objective function using the conjugate gradient. Numerical experiments show that for each iteration, the exponential-threshold POCS and the conjugate gradient have very similar computational efficiencies. For an image with various topologies of the missing areas, our scheme can recover missing pixels simultaneously and obtain a satisfied inpainting result in only 20 iterations of the exponential-threshold POCS and 20 iterations of the conjugate gradient. The proposed method can excellently restore damaged photographs and remove superimposed text. This method has less computational cost than the conjugate gradient and has a higher resolution than the POCS. |
| WOS关键词 | NONLOCAL REGULARIZATION ; INVERSE PROBLEMS ; CONVEX-SETS ; RECONSTRUCTION ; SUPERRESOLUTION ; PROJECTION ; ALGORITHM ; INTERPOLATION ; RECOVERY |
| WOS研究方向 | Imaging Science & Photographic Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000337061600004 |
| 出版者 | MANEY PUBLISHING |
| 资助机构 | National Natural Science Foundation of China(41074092) ; National Natural Science Foundation of China(41074092) ; Free Exploration project of Minzu University of China(1112KYQN38 ; Free Exploration project of Minzu University of China(1112KYQN38 ; Humanities and Social Science Planning Fund - Chinese Ministry of Education(12YJA630123) ; Humanities and Social Science Planning Fund - Chinese Ministry of Education(12YJA630123) ; 1112KYZY48) ; 1112KYZY48) ; National Natural Science Foundation of China(41074092) ; National Natural Science Foundation of China(41074092) ; Free Exploration project of Minzu University of China(1112KYQN38 ; Free Exploration project of Minzu University of China(1112KYQN38 ; Humanities and Social Science Planning Fund - Chinese Ministry of Education(12YJA630123) ; Humanities and Social Science Planning Fund - Chinese Ministry of Education(12YJA630123) ; 1112KYZY48) ; 1112KYZY48) ; National Natural Science Foundation of China(41074092) ; National Natural Science Foundation of China(41074092) ; Free Exploration project of Minzu University of China(1112KYQN38 ; Free Exploration project of Minzu University of China(1112KYQN38 ; Humanities and Social Science Planning Fund - Chinese Ministry of Education(12YJA630123) ; Humanities and Social Science Planning Fund - Chinese Ministry of Education(12YJA630123) ; 1112KYZY48) ; 1112KYZY48) ; National Natural Science Foundation of China(41074092) ; National Natural Science Foundation of China(41074092) ; Free Exploration project of Minzu University of China(1112KYQN38 ; Free Exploration project of Minzu University of China(1112KYQN38 ; Humanities and Social Science Planning Fund - Chinese Ministry of Education(12YJA630123) ; Humanities and Social Science Planning Fund - Chinese Ministry of Education(12YJA630123) ; 1112KYZY48) ; 1112KYZY48) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/85231]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhang, J. H. |
| 作者单位 | 1.Minzu Univ China, Sch Informat Engn, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, S. Q.,Zhang, J. H.. Fast image inpainting using exponential-threshold POCS plus conjugate gradient[J]. IMAGING SCIENCE JOURNAL,2014,62(3):161-170. |
| APA | Wang, S. Q.,&Zhang, J. H..(2014).Fast image inpainting using exponential-threshold POCS plus conjugate gradient.IMAGING SCIENCE JOURNAL,62(3),161-170. |
| MLA | Wang, S. Q.,et al."Fast image inpainting using exponential-threshold POCS plus conjugate gradient".IMAGING SCIENCE JOURNAL 62.3(2014):161-170. |
入库方式： OAI收割
来源：地质与地球物理研究所
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