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An Image Magnification Using Adaptive Interpolation Based Sub-pixel  

Park, Dae-Hyun (Kangwon National University)
Yoo, Jea-Wook (Kangwon National University)
Kim, Yoon (Program of Computer and Communications Engineering, Kangwon National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SP / v.45, no.6, 2008 , pp. 9-16 More about this Journal
Abstract
Recently, there are a lot of multimedia products using image interpolation system. However, most interpolation systems in existence suffer visually to some extents from the effects of blurred edges and jagged artifacts in the image. In this paper, we propose a new adaptive linear interpolation system that uses the sub-pixel. The proposed system calculate the warped distance among the pixels of an image by optimizing length parameter. A new cost function is introduced to reflect frequency properties of the origin data in order to improve image quality. Experimental results show that our new algorithm significantly outperforms conventional interpolation methods in subjective quality, and in most cases, in terms of PSNR as well.
Keywords
보간법;영상 확대;적응적 보간법;
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