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Methods and apparatuses for variable dimension vector quantization

  • US 20070118370A1
  • Filed: 01/16/2007
  • Published: 05/24/2007
  • Est. Priority Date: 03/04/2003
  • Status: Abandoned Application
First Claim
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1. A method for creating an optimum partition for a codebook, wherein the codebook includes at least one codevector yi, wherein each of the at least one codevectors yi includes a codevector dimension Nv and at least one codevector element yi,m, comprising:

  • (A) collecting a training data set, wherein the training data set comprises a plurality of input vectors, wherein each input vector is denoted xk and includes a variable training vector dimension N(Tk);

    (B) defining a partition rule;

    (C) defining a distortion measure for the partition rule, wherein the distortion measure defines an average distortion; and

    (D) finding a nearest codevector for each of the plurality of input vectors using an interpolation index relationship.

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