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Structure-preserving image completion with multi-level dynamic patches
Liu B.5; Li P.1; Sheng B.2; Nie Y.3; Wu E.4
2019-01-11
Source PublicationVisual Computer
ISSN01782789
Volume35Issue:1Pages:85-98
AbstractIn this paper, we present a novel structure-preserving image completion approach equipped with dynamic patches. We formulate the image completion problem into an energy minimization framework that accounts for coherence within the hole and global coherence simultaneously. The completion of the hole is achieved through iterative optimizations combined with a multi-scale solution. In order to avoid abnormal structure and disordered texture, we utilize a dynamic patch system to achieve efficient structure restoration. Our dynamic patch system functions in both horizontal and vertical directions of the image pyramid. In the horizontal direction, we conduct a parallel search for multi-size patches in each pyramid level and design a competitive mechanism to select the most suitable patch. In the vertical direction, we use large patches in higher pyramid level to maximize the structure restoration and use small patches in lower pyramid level to reduce computational workload. We test our approach on massive images with complex structure and texture. The results are visually pleasing and preserve nice structure. Apart from effective structure preservation, our approach outperforms previous state-of-the-art methods in time consumption.
KeywordDynamic patches Image completion Multi-scale solution Parallel search Patch-based approach Structure preservation
DOI10.1007/s00371-017-1454-x
URLView the original
Language英語
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被引频次[WOS]:1   [WOS记录]     [WOS相关记录]
Document TypeJournal article
专题University of Macau
Affiliation1.Macau University of Science and Technology
2.Shanghai Jiao Tong University
3.South China University of Technology
4.Universidade de Macau
5.The Education University of Hong Kong
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Liu B.,Li P.,Sheng B.,et al. Structure-preserving image completion with multi-level dynamic patches[J]. Visual Computer,2019,35(1):85-98.
APA Liu B.,Li P.,Sheng B.,Nie Y.,&Wu E..(2019).Structure-preserving image completion with multi-level dynamic patches.Visual Computer,35(1),85-98.
MLA Liu B.,et al."Structure-preserving image completion with multi-level dynamic patches".Visual Computer 35.1(2019):85-98.
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