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Efficient decoding method and apparatus for gradually coded images

  • US 7,046,853 B2
  • Filed: 05/24/2002
  • Issued: 05/16/2006
  • Est. Priority Date: 05/31/2001
  • Status: Active Grant
First Claim
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1. An image decoding method, comprising:

  • generating an intermediate image by decoding gradually coded image data which are generated by coding an original image;

    discontinuing said generating the intermediate image, in accordance with a processing capacity at any point of a decoding to an outputting thereof;

    utilizing, as a final decoded image, an intermediate image obtained at the time of said discontinuing; and

    performing a processing of expansion and reduction on the final decoded image, to be suitable for effective resolution of an outputting end that displays the decoded image,wherein a memory capacity usable for a processing of the decoding serves as the processing capacity, and said discontinuing is such that said generating the intermediate image is discontinued at a stage where an intermediate image suitable for the memory capacity is generated.

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