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2004 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'04) - Volume 1
Super-Resolution through Neighbor Embedding
Washington, D.C., USA
June 27-July 02
ISBN: 0-7695-2158-4
Hong Chang, Hong Kong University of Science and Technology
Dit-Yan Yeung, Hong Kong University of Science and Technology
Yimin Xiong, Hong Kong University of Science and Technology
In this paper, we propose a novel method for solving single-image super-resolution problems. Given a low-resolution image as input, we recover its high-resolution counterpart using a set of training examples. While this formulation resembles other learning-based methods for super-resolution, our method has been inspired by recent manifold learning methods, particularly locally linear embedding (LLE). Specifically, small image patches in the low- and high-resolution images form manifolds with similar local geometry in two distinct feature spaces. As in LLE, local geometry is characterized by how a feature vector corresponding to a patch can be reconstructed by its neighbors in the feature space. Besides using the training image pairs to estimate the high-resolution embedding, we also enforce local compatibility and smoothness constraints between patches in the target high-resolution image through overlapping. Experiments show that our method is very flexible and gives good empirical results.
Citation:
Hong Chang, Dit-Yan Yeung, Yimin Xiong, "Super-Resolution through Neighbor Embedding," cvpr, vol. 1, pp.275-282, 2004 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'04) - Volume 1, 2004
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