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Apparatus and methodology for a video codec system with noise reduction capability

  • US 8,885,706 B2
  • Filed: 09/16/2011
  • Issued: 11/11/2014
  • Est. Priority Date: 09/16/2011
  • Status: Active Grant
First Claim
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1. A media codec system, comprising:

  • a memory that stores computer executable components; and

    a processor that executes the following computer executable components stored within the memory;

    a noise representation component configured to identify a flat image region having pixel values with differences below a variance threshold, and to generate a noise energy spectrum by applying a transform to the flat image region to generate a first set of transform coefficients, the noise energy spectrum represented by the first set of transform coefficients;

    a quantization component configured to adaptively suppress noise associated with one or more blocks of an input image frame by changing a dead-zone of quantization based on the noise energy spectrum; and

    an entropy encoding component configured to receive quantized transform coefficients from the quantization component and to encode the quantized transform coefficients into a bitstream for transmission.

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