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Apparatuses and methods for adjusting coefficients using dead zones

  • US 9,154,782 B2
  • Filed: 09/16/2013
  • Issued: 10/06/2015
  • Est. Priority Date: 09/16/2013
  • Status: Active Grant
First Claim
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1. An encoder, comprising:

  • a transform configured to transform a portion of a video signal into a plurality of coefficients;

    a coefficient adjustment block configured to set to zero certain coefficients of the plurality of coefficients based on a comparison with a threshold, wherein a number of bits available to encode the portion of the video signal is based at least in part on a number of the certain coefficients that are set to zero; and

    a quantization block configured to receive adjusted coefficients from the coefficient adjustment block and quantize the coefficients.

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