Fast directional image interpolation with difference projection | IEEE Conference Publication | IEEE Xplore

Fast directional image interpolation with difference projection


Abstract:

This paper presents a new directional image interpolator, aiming to increase image resolution with high perceptual quality and low computational complexity. In our method...Show More

Abstract:

This paper presents a new directional image interpolator, aiming to increase image resolution with high perceptual quality and low computational complexity. In our method, missing pixels in a magnified image are generated through linear interpolation on certain fixed supports to facilitate fast implementation, while local directional features are imposed on the adaptive interpolation weights which are determined by the gradients diffused from the low resolution image. Afterwards, a novel difference projection strategy is proposed to enforce the continuity of the magnified image by reusing the directional interpolator. Experimental results show that our method outperforms conventional bicubic and some existing adaptive interpolators, in terms of both the perceptual and quantitative quality.
Date of Conference: 28 June 2009 - 03 July 2009
Date Added to IEEE Xplore: 18 August 2009
Print ISBN:978-1-4244-4290-4

ISSN Information:

Conference Location: New York, NY, USA

References

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