NDLI: Image Zooming Method with Hierarchical Structure

Content Provider	IEEE Xplore Digital Library
Author	Yihan Xiao Yongjie Pang Lanfei Zhao
Copyright Year	2013
Description	Author affiliation: Sci. & Technol. on Underwater Vehicle Lab., Harbin Eng. Univ., Harbin, China (Yongjie Pang) \|\| Coll. of Inf. & Commun. Eng., Harbin Eng. Univ., Harbin, China (Yihan Xiao; Lanfei Zhao)
Abstract	Since the enlarged images which were calculated by traditional linear interpolation and nonlinear algorithms are disturbed by blur and fuzzy edge, this paper proposes a new image zooming algorithm with hierarchical structure. It employed the retinex model to decompose image into low frequency layer and high frequency layer. The mirror signals which were introduced by up-sampling course were filtered by low pass filter to reconstruct the low frequency layer. The heat equation was adopted to reconstruct the high frequency layer with edge-preserving ability. The zooming images were obtained by merging layers at last. Experimental results show that this algorithm improves the defects of linear interpolation and nonlinear algorithms, the generated images via our algorithm possess preferable visual effect.
Starting Page	787
Ending Page	792
File Size	555138
Page Count	6
File Format	PDF
ISBN	9781479952458
DOI	10.1109/ISCC-C.2013.78
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-12-07
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interpolation Image zooming Linear interpolation Image edge detection Heating Retinex Entropy Mathematical model Mirrors The heat equation Equations
Content Type	Text
Resource Type	Article

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