RASL: Robust Alignment by Sparse and Low-rank Decomposition for Linearly Correlated Images PrePrint ISSN: 0162-8828
This paper studies the problem of simultaneously aligning a batch of linearly correlated images despite gross corruption (such as occlusion). Our method seeks an optimal set of image domain transformations such that the matrix of transformed images can be decomposed as the sum of a sparse matrix of errors and a low-rank matrix of recovered aligned images. We reduce this extremely challenging optimization problem to a sequence of convex programs that minimize the sum of l1-norm and nuclear norm of the two component matrices, which can be efficiently solved by fast and scalable convex optimization techniques. We verify the efficacy of the proposed robust alignment algorithm with extensive experiments on both controlled and uncontrolled real data, demonstrating higher accuracy and efficiency than existing methods over a wide range of realistic misalignments and corruptions.
Index Terms:
Computer vision, Batch Image Alignment, Rank Minimization, Convex programming, Principal Component Pursuit, Occlusion and Corruption
Citation:
Yigang Peng, Arvind Ganesh, John Wright, Wenli Xu, Yi Ma, "RASL: Robust Alignment by Sparse and Low-rank Decomposition for Linearly Correlated Images," IEEE Transactions on Pattern Analysis and Machine Intelligence, 28 Dec. 2011. IEEE computer Society Digital Library. IEEE Computer Society, <http://doi.ieeecomputersociety.org/10.1109/TPAMI.2011.282> Usage of this product signifies your acceptance of the Terms of Use. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||