Content-preserving video stitching method for multi-camera systems

In this paper, a novel content-preserving video stitching method is proposed. Video stitching has to deal with moving objects in the overlapped area (OA) which often cause problems of structural misalignment or ghost effect. To this end, the proposed method first finds an optimal seam that does not...

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Bibliographic Details
Published in:IEEE transactions on consumer electronics 2017-05, Vol.63 (2), p.109-116
Main Authors: Kim, Bo-Sang, Choi, Kang-A, Park, Won-Jae, Kim, Seung-Wook, Ko, Sung-Jea
Format: Article
Language:English
Subjects:
Blending
Color
Complexity
Computation
Computational complexity
content-preserving
Electrical engineering
Electronic devices
Energy conservation
Energy consumption
Image color analysis
Minimization
Misalignment
Multi-camera systems
Optimization
partial seam-updating
seam-finding
Stitching
Streaming media
video stitching
Visualization
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Summary:In this paper, a novel content-preserving video stitching method is proposed. Video stitching has to deal with moving objects in the overlapped area (OA) which often cause problems of structural misalignment or ghost effect. To this end, the proposed method first finds an optimal seam that does not pass through the moving objects, by using the extended dynamic programing (DP) technique based on the energy minimization. Then the content-aware adaptive blending is performed which effectively reduces the color discontinuity while restricting the ghost effect caused by moving objects in the OA. In addition, to reduce the computational complexity, a partial seam-update (PSU) scheme is proposed, in which the seam is re-calculated only for a part of the seam passing through the moving object. Experimental results demonstrate that the proposed method is superior to the conventional ones in terms of both subjective quality and computational complexity. In addition, this method achieves real-time performance on mobile platform, making it applicable to consumer electronic devices.
ISSN:0098-3063
1558-4127
DOI:10.1109/TCE.2017.014841