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System and method for effectively performing an adaptive quantization procedure

  • US 7,720,300 B1
  • Filed: 12/05/2006
  • Issued: 05/18/2010
  • Est. Priority Date: 12/05/2006
  • Status: Expired due to Fees
First Claim
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1. A system for performing an adaptive quantization procedure, comprising:

  • an energy calculator that determines energy values for subbands of input data; and

    a quantizer that receives initial quantization parameters that each correspond to a different respective one of said subbands, said quantizer calculating adaptive quantization parameters from said initial quantization parameters by utilizing corresponding ones of said energy values, said quantizer then utilizing said adaptive quantization parameters to generate quantized coefficients for said subbands during said adaptive quantization procedure.

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