Document Detail


FAST EDGE-FILTERED IMAGE UPSAMPLING.
MedLine Citation:
PMID:  22323066     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We present a novel edge preserved interpolation scheme for fast upsampling of natural images. The proposed piecewise hyperbolic operator uses a slope-limiter function that conveniently lends itself to higher-order approximations and is responsible for restricting spatial oscillations arising due to the edges and sharp details in the image. As a consequence the upsampled image not only exhibits enhanced edges, and discontinuities across boundaries, but also preserves smoothly varying features in images. Experimental results show an improvement in the PSNR compared to typical cubic, and spline-based interpolation approaches.
Authors:
Shantanu H Joshi; Antonio L Marquina; Stanley J Osher; Ivo Dinov; Arthur W Toga; John D Van Horn
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Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  Proceedings / ICIP ... International Conference on Image Processing     Volume:  -     ISSN:  1522-4880     ISO Abbreviation:  -     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2012-2-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101492319     Medline TA:  Proc Int Conf Image Proc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  1165-1168     Citation Subset:  -    
Affiliation:
Laboratory of Neuro Imaging, University of California, Los Angeles, CA 90095, USA.
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MeSH Terms
Descriptor/Qualifier:
Grant Support
ID/Acronym/Agency:
RC1 MH088194-01//NIMH NIH HHS; RC1 MH088194-02//NIMH NIH HHS

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