Patent ID: 9013554
Filing Date: 2015-04-21
Classification: H04N

Abstract:
1. A method for imaging a three-dimensional scene, the method comprising: providing a reference structure that is physically adapted to modulate an image field, wherein the reference structure includes a first element that is selected from the group consisting of a two-dimensional coded aperture, a volume distribution of lenslets having a size based on the first resolution, an array of lenslets that are focused at a plurality of focal ranges within the focal volume, a three-dimensional array of optical fibers, a volume hologram, a volume distribution of particles, and a three-dimensional graded index material; modulating the image field via the reference structure to provide a modulated image; receiving the modulated image at a camera comprising a focal-plane array; generating a plurality of electrical signals based on the modulated image; and processing the plurality of electrical signals to reconstruct the image field at a plurality of focal ranges.