Double-Constraint Inpainting Model of a Single-Depth Image
In real applications, obtained depth images are incomplete; therefore, depth image inpainting is studied here. A novel model that is characterised by both a low-rank structure and nonlocal self-similarity is proposed. As a double constraint, the low-rank structure and nonlocal self-similarity can fu...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-03-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/20/6/1797 |
| _version_ | 1811299810515353600 |
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| author | Wu Jin Li Zun Liu Yong |
| author_facet | Wu Jin Li Zun Liu Yong |
| author_sort | Wu Jin |
| collection | DOAJ |
| description | In real applications, obtained depth images are incomplete; therefore, depth image inpainting is studied here. A novel model that is characterised by both a low-rank structure and nonlocal self-similarity is proposed. As a double constraint, the low-rank structure and nonlocal self-similarity can fully exploit the features of single-depth images to complete the inpainting task. First, according to the characteristics of pixel values, we divide the image into blocks, and similar block groups and three-dimensional arrangements are then formed. Then, the variable splitting technique is applied to effectively divide the inpainting problem into the sub-problems of the low-rank constraint and nonlocal self-similarity constraint. Finally, different strategies are used to solve different sub-problems, resulting in greater reliability. Experiments show that the proposed algorithm attains state-of-the-art performance. |
| first_indexed | 2024-04-13T06:41:20Z |
| format | Article |
| id | doaj.art-a6516c438766422ab5f43faf9df19f7f |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-13T06:41:20Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-a6516c438766422ab5f43faf9df19f7f2022-12-22T02:57:43ZengMDPI AGSensors1424-82202020-03-01206179710.3390/s20061797s20061797Double-Constraint Inpainting Model of a Single-Depth ImageWu Jin0Li Zun1Liu Yong2School of Information Science and Engineering, Wuhan University of Science and Technology, Wuhan 430081, ChinaSchool of Information Science and Engineering, Wuhan University of Science and Technology, Wuhan 430081, ChinaSchool of Information Science and Engineering, Wuhan University of Science and Technology, Wuhan 430081, ChinaIn real applications, obtained depth images are incomplete; therefore, depth image inpainting is studied here. A novel model that is characterised by both a low-rank structure and nonlocal self-similarity is proposed. As a double constraint, the low-rank structure and nonlocal self-similarity can fully exploit the features of single-depth images to complete the inpainting task. First, according to the characteristics of pixel values, we divide the image into blocks, and similar block groups and three-dimensional arrangements are then formed. Then, the variable splitting technique is applied to effectively divide the inpainting problem into the sub-problems of the low-rank constraint and nonlocal self-similarity constraint. Finally, different strategies are used to solve different sub-problems, resulting in greater reliability. Experiments show that the proposed algorithm attains state-of-the-art performance.https://www.mdpi.com/1424-8220/20/6/1797depth image inpaintingvariable splitting techniquelow-rank constraintnonlocal self-similarity constraint |
| spellingShingle | Wu Jin Li Zun Liu Yong Double-Constraint Inpainting Model of a Single-Depth Image Sensors depth image inpainting variable splitting technique low-rank constraint nonlocal self-similarity constraint |
| title | Double-Constraint Inpainting Model of a Single-Depth Image |
| title_full | Double-Constraint Inpainting Model of a Single-Depth Image |
| title_fullStr | Double-Constraint Inpainting Model of a Single-Depth Image |
| title_full_unstemmed | Double-Constraint Inpainting Model of a Single-Depth Image |
| title_short | Double-Constraint Inpainting Model of a Single-Depth Image |
| title_sort | double constraint inpainting model of a single depth image |
| topic | depth image inpainting variable splitting technique low-rank constraint nonlocal self-similarity constraint |
| url | https://www.mdpi.com/1424-8220/20/6/1797 |
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