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Light-field camera

  • US 10,511,787 B2
  • Filed: 02/11/2016
  • Issued: 12/17/2019
  • Est. Priority Date: 02/12/2015
  • Status: Active Grant
First Claim
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1. A light-field camera for capturing multiple views of a scene, the multiple views representing samples of a light-field, the light-field camera comprising:

  • a primary camera configured for capturing a primary digital two-dimensional image of the scene;

    a two-dimensional camera array comprising a plurality of secondary cameras, wherein each of the secondary cameras is configured for capturing a secondary digital two-dimensional image of the scene in order to produce at least one set of secondary digital two-dimensional images of the scene;

    a semitransparent mirror arranged in such way that an incident light beam originating from the scene is split up in a first partial light beam, which is directed to the primary camera, and a second partial light beam, which is directed to the camera array; and

    a circuitry or processor configured for;

    receiving the primary digital two-dimensional image and the at least one set of secondary digital two-dimensional images and configured for computing depth information for the primary digital two-dimensional image or a digital two-dimensional image corresponding to the primary digital two-dimensional image based on the set of secondary digital two-dimensional images;

    simultaneously rectifying of the secondary digital two-dimensional images of the set of secondary digital two-dimensional images and the primary digital two-dimensional image by using feature points or checkerboards in order to produce a set of rectified secondary digital two-dimensional images and a rectified primary digital two-dimensional image; and

    warping the rectified primary digital two-dimensional image to a warped rectified primary digital two-dimensional image corresponding to a virtual camera position of the primary camera by using the depth information.

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