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DEPTH FROM DEFOCUS CALIBRATION

  • US 20110181770A1
  • Filed: 08/16/2010
  • Published: 07/28/2011
  • Est. Priority Date: 01/27/2010
  • Status: Active Grant
First Claim
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1. A method for calculating depth estimation for a digital imaging device, the method comprising the acts of:

  • detecting a first image, by the digital imaging device, associated with a first focus parameter;

    detecting a second image, by the digital imaging device, associated with a second focus parameter;

    calculating a statistical representation of a region of interest in the first and second images;

    determining a ratio for the region of interest based on the statistical representation;

    determining one or more focus characteristics using a memory table based on the determined ratio for the region of interest; and

    calculating a focus depth, by the digital imaging device, for capture of image data based on the determined one or more focus characteristics associated with the memory table.

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