Edge-preserving single image super-resolution

Qiang Zhou, Shifeng Chen, Jianzhuang Liu, Xiaoou Tang
2011 Proceedings of the 19th ACM international conference on Multimedia - MM '11  
This paper proposes a novel approach to single image superresolution. First, an image up-sampling scheme is proposed which takes the advantages of both bilateral filtering and mean shift image segmentation. Then we use a shock filter to enhance strong edges in the initial up-sampling result and obtain an intermediate high-resolution image. Finally, we enforce a reconstruction constraint on the highresolution image so that fine details can be inferred by back projection. Since strong edges in
more » ... strong edges in the intermediate result are enhanced, ringing artifacts can be suppressed in the back projection step. We compare our algorithm with several state-of-the-art image super-resolution algorithms. Qualitative and quantitative experimental results demonstrate that our approach performs the best.
doi:10.1145/2072298.2071932 dblp:conf/mm/ZhouCLT11 fatcat:hvbwsfcrwrbizczrunfxu63yae