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Image and video super-resolution via spatially adaptive blockmatching filtering
- Proceedings of International Workshop on Local and Non-Local Approximation in Image Processing (LNLA
, 2008
"... In our recent work [6], we proposed an algorithm for image upsampling based on alternation of two procedures: spatially adaptive Þltering in image domain and projection on the observationconstrained subspace in a wavelet domain. The nonlocal Block-Matching 3-D (BM3D) Þlter was used to suppress ringi ..."
Abstract
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Cited by 7 (4 self)
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In our recent work [6], we proposed an algorithm for image upsampling based on alternation of two procedures: spatially adaptive Þltering in image domain and projection on the observationconstrained subspace in a wavelet domain. The nonlocal Block-Matching 3-D (BM3D) Þlter was used to suppress ringing and reconstruct missing detail coefÞcients. Here we generalize this method in two aspects. First, we reformulate observation model and reconstruction algorithm from wavelets to a general class of scaling transforms, and second, we extend applicability from single image upsampling to image and video super-resolution. Experimental results demonstrate signiÞcant improvement over the upsampling method [6] and an overall performance on the level of the best existing super-resolution methods. 1.

