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|a 10.1109/TVCG.2016.2618878
|2 doi
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|a eng
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| 100 |
1 |
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|a Nie, Yongwei
|e verfasserin
|4 aut
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| 245 |
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|a Homography Propagation and Optimization for Wide-Baseline Street Image Interpolation
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|c 2017
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|a Text
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|a Date Completed 23.11.2018
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|a Date Revised 23.11.2018
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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| 520 |
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|a Wide-baseline street image interpolation is useful but very challenging. Existing approaches either rely on heavyweight 3D reconstruction or computationally intensive deep networks. We present a lightweight and efficient method which uses simple homography computing and refining operators to estimate piecewise smooth homographies between input views. To achieve the goal, we show how to combine homography fitting and homography propagation together based on reliable and unreliable superpixel discrimination. Such a combination, other than using homography fitting only, dramatically increases the accuracy and robustness of the estimated homographies. Then, we integrate the concepts of homography and mesh warping, and propose a novel homography-constrained warping formulation which enforces smoothness between neighboring homographies by utilizing the first-order continuity of the warped mesh. This further eliminates small artifacts of overlapping, stretching, etc. The proposed method is lightweight and flexible, allows wide-baseline interpolation. It improves the state of the art and demonstrates that homography computation suffices for interpolation. Experiments on city and rural datasets validate the efficiency and effectiveness of our method
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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| 700 |
1 |
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|a Zhang, Zhensong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sun, Hanqiu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Su, Tan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Guiqing
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t IEEE transactions on visualization and computer graphics
|d 1996
|g 23(2017), 10 vom: 24. Okt., Seite 2328-2341
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|u http://dx.doi.org/10.1109/TVCG.2016.2618878
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