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Based on locally linear embedding (LLE) manifold learning theory, which assumes that the low-resolution (LR) manifold and high-resolution (HR) manifold spaces share the same local geometry structure, neighbor embedding based super-resolution(SR) methods search K-nearest neighbors(K-NN) of LR patch, then use the counterpart HR patches to estimate HR patch. The primary issue of these methods is how...
Based on the assumption that low-resolution (LR) and high-resolution (HR) patch manifolds are locally isometric, the neighbor embedding based super-resolution algorithms try to preserve the local geometry of the patch manifold for the reconstructed HR patch manifold. However, due to “one-to-many” mappings between LR and HR images, the neighborhood relationship of the LR patch manifold can't reflect...
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