Improving resolution by image registration
CVGIP: Graphical Models and Image Processing
Statistical Pattern Recognition: A Review
IEEE Transactions on Pattern Analysis and Machine Intelligence
The FERET Evaluation Methodology for Face-Recognition Algorithms
IEEE Transactions on Pattern Analysis and Machine Intelligence
Robust Face Recognition via Sparse Representation
IEEE Transactions on Pattern Analysis and Machine Intelligence
Nonlocal back-projection for adaptive image enlargement
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Image super-resolution via sparse representation
IEEE Transactions on Image Processing
Hallucinating face by eigentransformation
IEEE Transactions on Systems, Man, and Cybernetics, Part C: Applications and Reviews
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Generating a high resolution (HR) image from its corresponding low resolution (LR) counterpart is an important problem in many application fields. The recently widely used sparse representation (SR) techniques provide a pioneer work to this inverse problem by incorporating the sparsity prior into the super-resolution reconstruction process. Motivated by this work, in this paper, we present a new face image super-resolution method using the sparse representation, which first seeks a sparse representation for each low-resolution input, and then the representation coefficients are directly used to generate the corresponding high-resolution output. The effectiveness of the proposed method is evaluated through the experiments on the benchmark face database, and the experimental results demonstrate that the proposed method can achieve competitive performance compared with other state-of-the-art methods.