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Removal of fixed pattern noise and other fixed patterns from media signals

  • US 6,535,617 B1
  • Filed: 04/19/2000
  • Issued: 03/18/2003
  • Est. Priority Date: 02/14/2000
  • Status: Expired due to Fees
First Claim
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1. A method of removing noise from a media signal comprising:

  • combining frames of the media signal to form a composite signal;

    removing a DC component from the composite signal;

    deriving a measure of fixed pattern noise from the composite signal;

    using the measure of fixed pattern noise to compute an estimate of fixed pattern noise in a frame of the media signal; and

    removing the estimate of fixed pattern noise from the frame.

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