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US 2014/0368617 A1Published application
Defocusing feature matching system to measure camera pose with interchangeable lens cameras
AssigneeCalifornia Institute of Technology
InventorsMorteza Gharib, Jian Lu, Scott Hsieh, Francisco Pereira, Alexei Harvard, David Jeon
Life of this patent
Estimating the term…
Abstract
A lens and aperture device for determining 3D information. An SLR camera has a lens and aperture that allows the SLR camera to determine defocused information.
Claims18
A method comprising:
- at a first time, obtaining an image with a camera with a first lens attached to the camera where the first lens includes controllable aperture, and said first image includes information for the two-dimensional image;
- and
- at a second time, obtaining an image with said camera using a different second lens attached to the camera, where the second lens includes an aperture set that is coded to form two separate channels which are differentiable from one another, and produces an output which includes information indicative of three-dimensional, defocused, information.
A lens assembly, comprising:
- a first portion which connects to a camera of a type which receives conventional lenses that have lens groups and controllable apertures, said first portion including the portion that connects to said camera;
- a lens group, defining an optical axis through a body of said lens assembly;
- and
- a fixed aperture plate, defined along said optical axis, which has at least a first fixed aperture at a first location on said optical axis and at least a second fixed aperture at a second location on said optical axis, where said first and second fixed apertures are optically differentiable.
1 more element
A system comprising:
- a camera body;
- a lens assembly, having an aperture set that is coded to form two separate channels which are differentiable from one another,
- said camera body producing an output which includes information indicative of three- dimensional, defocused, information;
- and
- a computer, coupled to said camera body to receive said information from said camera body, said computer using said output to create a three-dimensional image.
2 more elements
Dependencies are inferred from the claim text.