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Image interpolation by an integer factor using a non linear technique

  • Carlo Alessandretti
  • Vittorio Rochelli
  • Paola Carrai
  • Luigi Albani
Conference paper

Abstract

A non linear technique for image interpolation is presented. Linear techniques generally produce smoothed images and blocking artifacts. The aim of our method is to interpolate images by large and arbitrary integer factors preserving the sharpness of their contours. We achieve this goal by using a technique based on the nonlinear rational filter (RF).

Keywords

Output Image Linear Technique Image Interpolation Original Pixel Philips Research 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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    G. Ramponi, “The Rational Filter for Image Smoothing,” IEEE Signal Processing Letters, vol.3, no.3, pp.63–65, March 1996.CrossRefGoogle Scholar
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    G. Ramponi and S. Carrato, “Interpolation of the DC Component of Coded Images Using a Rational Filter,” Proc. Fourth IEEE Intern. Conf. on Image Processing, ICIP-97, S. Barbara, CA, Oct. 26–29, 1997.Google Scholar

Copyright information

© Springer-Verlag London Limited 1998

Authors and Affiliations

  • Carlo Alessandretti
    • 1
  • Vittorio Rochelli
    • 2
  • Paola Carrai
    • 1
  • Luigi Albani
    • 1
  1. 1.Philips Research MonzaTriesteMonza (MI)Italy
  2. 2.University fo TriesteTriesteMonza (MI)Italy

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