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Artifact reduction decompression method and apparatus for interpolated images

  • US 6,044,177 A
  • Filed: 06/18/1997
  • Issued: 03/28/2000
  • Est. Priority Date: 06/18/1997
  • Status: Expired due to Term
First Claim
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1. A decompression process for a compressed interpolated image wherein the compressed interpolated image was interpolated using a prescribed interpolation method prior to compressing using a known lossy compression scheme, the process comprising the steps of:

  • a) finding a first image, the first image being an image that has been interpolated in the prescribed way;

    b) finding a second image, the second image being the interpolated compressed first image that has been compressed to the compressed interpolated image output by the compression scheme; and

    c) if the first image is sufficiently different from the second image, repeating steps a) and b).

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