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In-camera based method of detecting defect eye with high accuracy

  • US 8,081,254 B2
  • Filed: 08/14/2008
  • Issued: 12/20/2011
  • Est. Priority Date: 08/14/2008
  • Status: Active Grant
First Claim
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1. A portable digital image acquisition device, comprising:

  • (a) a lens and a sensor for acquiring a main digital image and first and second reference images;

    (b) first and second light sources disposed at different distances from the lens for illuminating one or more objects within an acquired scene;

    (c) a memory for storing the main digital image;

    (d) one or more non-transitory processor-readable media having digital code embedded therein for programming a processor to perform a method of determining and correcting a flash eye defect in the main digital image using the first and second reference images, wherein the method comprises;

    (i) acquiring the first and second reference images respectively using the first and second light sources;

    (ii) normalizing the first and second reference images to generate normalized first and second reference images;

    (iii) analyzing one or more differences between the first and second normalized reference images;

    (iv) determining and correcting the flash eye defect within the main image based on the analyzing to generate a corrected main image; and

    (v) storing, transmitting, communicating, displaying, or projecting the corrected main image or a further processed version, or combinations thereof.

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