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Systems and methods for high dynamic range imaging using array cameras

  • US 9,774,789 B2
  • Filed: 03/07/2014
  • Issued: 09/26/2017
  • Est. Priority Date: 03/08/2013
  • Status: Active Grant
First Claim
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1. A method of performing high dynamic range image capture adaptive to scene object distance using an array camera, the method comprising:

  • capturing initial image data using at least one active camera from a plurality of cameras in the array camera;

    determining whether to utilize high dynamic range imaging for performing image capture using a processor configured by software; and

    when high dynamic range imaging is determined to be utilized;

    generating a depth map based on the initial image data using a processor configured by software;

    determining whether an object is within a predetermined distance from the array camera by evaluating the depth map using the processor configured by software;

    defining a first subset and a second subset of active cameras within the plurality of cameras in the array camera using the processor configured by software;

    when the object is not within the predetermined distance;

    determining a first exposure setting for the first subset of active cameras and a second exposure setting for the second subset of active cameras using the processor configured by software;

    configuring the first subset with the first exposure setting and the second subset with the second exposure setting using the processor configured by software;

    capturing single-frame image data using the first subset and the second subset of active cameras, wherein the single-frame image data includes at least one first single-frame image captured at the first exposure setting and at least one second single-frame image captured at the second exposure setting; and

    synthesizing a first exposure image based on the at least one first single-frame image and a second exposure image based on the at least one second single-frame image using the processor configured by software;

    andgenerating a high dynamic range image from the first exposure image and the second exposure image using the processor configured by software.

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