Processing multi-aperture image data

摘要

A method and a system for processing multi-aperture image data are described, wherein the method comprises: capturing image data associated with one or more objects by simultaneously exposing an image sensor in an imaging system to spectral energy associated with at least a first part of the electromagnetic spectrum using at least a first aperture and to spectral energy associated with at least a second part of the electromagnetic spectrum using at least a second and third aperture; generating first image data associated with said first part of the electromagnetic spectrum and second image data associated with said second part of the electromagnetic spectrum; and, generating depth information associated with said captured image on the basis displacement information in said second image data, preferably on the basis of displacement information in an auto-correlation function of the high-frequency image data associated with said second image data.

主权项

1. A method for processing multi-aperture image data, comprising:
capturing image data associated with one or more objects by simultaneously exposing a one pixel array of an image sensor in an imaging system to spectral energy of a visible part of the electromagnetic spectrum using at least a first static aperture and to spectral energy associated with a non-visible part of the electromagnetic spectrum using at least a second and third static aperture; wherein the second and third aperture are smaller than the first aperture; the at least second and third aperture being positioned with respect to each other such that the at least second and third aperture image an object that is out-of-focus as at least two displaced non-visible images onto the image sensor; generating visible image data associated with said visible part of the electromagnetic spectrum and invisible image data associated with said non-visible part of the electromagnetic spectrum; generating depth information associated with said generated visible image data on the basis of displacement information in said invisible image data, wherein said at least second and third apertures are positioned with respect to each other such that a first part of said invisible image data obtained via said second aperture and a second part of said invisible image data obtained via said third aperture are displaced with respect to each other according to a function of the distance between an object and said imaging system; wherein the generating depth information includes: identifying one or more edges of at least two non-visible images of at least one object of the one or more objects in the image data; determining a distance between said imaging system and the at least one object on the basis of said one or more identified edges.