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Apparatus and methods for transcoder-based adaptive quantization

  • US 6,441,754 B1
  • Filed: 08/17/2000
  • Issued: 08/27/2002
  • Est. Priority Date: 08/17/1999
  • Status: Expired due to Term
First Claim
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1. A method for determining an optimal re-encode quantization parameter, comprising:

  • receiving a decoded quantization parameter, Q1, of a bitstream portion;

    receiving a re-encode quantization parameter, Q2, of the bitstream portion;

    comparing Q1 and Q2; and

    selecting Q2 as the optimal re-encode quantization parameter if Q2 is greater than Q1, and otherwise selecting Q1 as the optimal re-encode quantization parameter.

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