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Coding device and coding method

  • US 6,226,326 B1
  • Filed: 08/05/1999
  • Issued: 05/01/2001
  • Est. Priority Date: 12/08/1997
  • Status: Expired due to Term
First Claim
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1. A coding device for coding video data on the basis of a designated bit rate, the device comprising:

  • control means for calculating a target bit quantity allocated to each picture included in a GOP on the basis of the designated bit rate; and

    coding means for coding a coding target picture on the basis of the target bit quantity controlled by the control means, the control means correcting the target bit quantity allocated to the coding target picture on the basis of the difference between a first bit rate and a second bit rate when the designated bit rate is changed from the first bit rate to the second bit rate in the case where coding processing of the coding target picture is carried out by the coding means.

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