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Volume: 28 | Article ID: art00001
Edge-directional interpolation algorithm using structure tensor
  DOI :  10.2352/ISSN.2470-1173.2016.15.IPAS-026  Published OnlineFebruary 2016

The paper presents a new low complexity edge-directed image interpolation algorithm. The algorithm uses structure tensor analysis to distinguish edges from textured areas and to find local structure direction vectors. The vectors are quantized into 6 directions. Individual adaptive interpolation kernels are used for each direction. Experimental results show high performance of the proposed method without introducing artifacts.

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Andrey V Nasonov, Andrey S Krylov, Xenya Yu Petrova, Michael N Rychagov, "Edge-directional interpolation algorithm using structure tensorin Proc. IS&T Int’l. Symp. on Electronic Imaging: Image Processing: Algorithms and Systems XIV,  2016,

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