Abstract
Face Super Resolution(FSR) is to infer High Resolution(HR) facial
images from given Low Resolution(LR) ones with the assistance of
LR and HR training pairs. Among existing methods, local patch
based methods are superior in visual and objective quality than global based methods. These local patch based methods are based on
the consistency assumption that the neighbors in HR/LR space form
similar local geometry. But when LR images are with low quality,
the LR space is seriously contaminated that even two distinct patches look similar, which means that the consistency assumption is not well held anymore. To this end, in this paper we introduce the contextual topological structure of target patch to improve the consistency. The contextual topological structure consists of the target patch as well as its adjacent patches, we explore the relationship between them based on statistical probability and apply the relationship for joint learning progress of mapping from LR to HR. By incorporating the contextual topological structure, the robustness to noise of
approach is increased as well as the LR/HR consistency. The effectiveness of proposed method is verified both quantitatively and qualitatively.
images from given Low Resolution(LR) ones with the assistance of
LR and HR training pairs. Among existing methods, local patch
based methods are superior in visual and objective quality than global based methods. These local patch based methods are based on
the consistency assumption that the neighbors in HR/LR space form
similar local geometry. But when LR images are with low quality,
the LR space is seriously contaminated that even two distinct patches look similar, which means that the consistency assumption is not well held anymore. To this end, in this paper we introduce the contextual topological structure of target patch to improve the consistency. The contextual topological structure consists of the target patch as well as its adjacent patches, we explore the relationship between them based on statistical probability and apply the relationship for joint learning progress of mapping from LR to HR. By incorporating the contextual topological structure, the robustness to noise of
approach is increased as well as the LR/HR consistency. The effectiveness of proposed method is verified both quantitatively and qualitatively.
| Original language | English |
|---|---|
| Title of host publication | 2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) |
| Publisher | IEEE |
| Pages | 1088-1092 |
| ISBN (Electronic) | 9781509041176 |
| ISBN (Print) | 978-1-5090-4118-3 |
| DOIs | |
| Publication status | Published - Jun 2017 |
| Event | 2017 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) - New Orleans, United States Duration: 5 Mar 2017 → 9 Mar 2017 https://ieeexplore.ieee.org/xpl/conhome/7943262/proceeding |
Publication series
| Name | International Conference on Acoustics, Speech, and Signal Processing (ICASSP) |
|---|---|
| Publisher | IEEE |
| ISSN (Print) | 1520-6149 |
| ISSN (Electronic) | 2379-190X |
Conference
| Conference | 2017 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) |
|---|---|
| Place | United States |
| City | New Orleans |
| Period | 5/03/17 → 9/03/17 |
| Internet address |
Research Keywords
- consistency enhancement
- contextual topological structure
- face super resolution
- low level vision
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