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Focus detection

  • US 9,715,721 B2
  • Filed: 12/18/2015
  • Issued: 07/25/2017
  • Est. Priority Date: 12/18/2015
  • Status: Active Grant
First Claim
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1. A method programmed in a non-transitory memory of a device comprising:

  • a. acquiring content, wherein the content includes one or more images, wherein the content includes at least one small blur image;

    b. determining if the content includes one or more big blur images;

    c. removing the one or more big blur images, when the one or more big blur images are determined; and

    d. determining in-focus images of small blur images without the one or more big blur images, wherein determining the in-focus images of the small blur images utilizes thresholds set for iteration number difference, combined chromatic features and combined non-chromatic features.

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