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Proceedings Paper

Nonlinear quincunx interpolation filtering
Author(s): Arto H.T. Lehtonen; Markku Renfors
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Paper Abstract

Quincunx sub-sampling and interpolation techniques are widely used in many image and video signal bandwidth compression techniques, like HDTV transmission systems. In this paper we consider the basic quincunx interpolation problem: interpolation of the missing samples of an orthogonally sampled image after quincunx sub-sampling with a factor of two. New median-based nonlinear interpolation techniques are developed and compared with traditional linear designs. It is shown that nonlinear interpolators result in considerably lower hardware complexity than good quality linear designs and, in many respects, even better image quality can be achieved.

Paper Details

Date Published: 1 September 1990
PDF: 8 pages
Proc. SPIE 1360, Visual Communications and Image Processing '90: Fifth in a Series, (1 September 1990); doi: 10.1117/12.24186
Show Author Affiliations
Arto H.T. Lehtonen, Nokia Research Ctr. (Finland)
Markku Renfors, Nokia Research Ctr. (Finland)

Published in SPIE Proceedings Vol. 1360:
Visual Communications and Image Processing '90: Fifth in a Series
Murat Kunt, Editor(s)

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