DCT-Based Regularized Algorithm for High-Resolution Image Reconstruction

@inproceedings{Rhee1999DCTBasedRA,
  title={DCT-Based Regularized Algorithm for High-Resolution Image Reconstruction},
  author={Seunghyeon Rhee and Moon Gi Kang},
  booktitle={ICIP},
  year={1999}
}
While high resolution images are required for various applications, aliased low-resolution images are only available due to the finite sensor pixels. In this paper; a new approach is proposed to obtain superresolution using regularization. With the proposed approach based on the discrete cosine transform, high-resolution images can be efficiently reconstructed both in the underdetermined case and in the case with inaccurate motion estimates. 
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