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Method for improving SNR in low illumination conditions in a CMOS video sensor system using a self-resetting digital pixel

  • US 20030058356A1
  • Filed: 09/24/2001
  • Published: 03/27/2003
  • Est. Priority Date: 09/24/2001
  • Status: Active Grant
First Claim
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1. A method for improving signal-to-noise ratio (SNR) under low illumination without slowing video frame rate in a solid state video sensor system employing self-reset pixels, said method comprising steps of:

  • eliminating global frame reset for said pixels thereby extending integration time beyond frame readout time;

    generating a frame image using one or more previously stored frames.

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