Abstract
A robust video stabilization algorithm, which reduces shaky camera movements and rolling-shutter distortions in video sequences, is proposed in this work. We first extract feature trajectories through a video sequence, and then transform the feature positions into rolling-free smoothed positions. Then, we set a mesh grid on each frame and warp each grid cell by matching the original features to the smoothed ones. For robust warping, we formulate a cost function based on the confidence of each feature and the reliability of each grid cell. The cost function consists of a data term, a structure-preserving term, and a regularization term. By minimizing the cost function, we find the optimal grid positions in the warped frame and transform each grid cell accordingly. Experimental results show that the proposed algorithm stabilizes videos and removes rolling-shutter distortions more efficiently than conventional algorithms.
Original language | English |
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Title of host publication | 2014 IEEE International Conference on Image Processing, ICIP 2014 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 5781-5785 |
Number of pages | 5 |
ISBN (Print) | 9781479957514 |
DOIs | |
Publication status | Published - 2014 Jan 28 |
Keywords
- mesh grid warping
- rolling-shutter distortion
- video enhancement
- Video stabilization
ASJC Scopus subject areas
- Computer Vision and Pattern Recognition