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Systems and methods for estimating depth and visibility from a reference viewpoint for pixels in a set of images captured from different viewpoints

  • US 10,380,752 B2
  • Filed: 12/29/2017
  • Issued: 08/13/2019
  • Est. Priority Date: 08/21/2012
  • Status: Active Grant
First Claim
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1. An array camera, comprising:

  • a plurality of cameras;

    a processor;

    memory containing an image processing application and calibration data;

    wherein the processor is configured by the image processing application to produce an image by;

    directing the plurality of cameras to capture a plurality of images including a reference image and at least one alternate view image;

    retrieving the calibration data from memory;

    rectifying the plurality of captured images using the calibration data;

    performing a calibration process;

    determining a range of disparities to search based upon characteristics of at least one of the plurality of images;

    measuring similarity of corresponding pixels in the plurality of images at a plurality of disparities;

    generating an initial depth map; and

    refocusing the reference image using the initial depth map;

    wherein the processor is configured by the image processing application to measure similarity of corresponding pixels in the plurality of images at the plurality of disparities using a cost function.

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