PROCESSING MULTI-APERTURE IMAGE DATA
First Claim
1. A method of processing multi-aperture image data, comprising:
- capturing image data associated of 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 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 of first sharpness information in at least one area of said first image data and second sharpness information in at least one area of said second image data.
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Abstract
A method and a system for processing multi-aperture image data is described wherein the method comprises: capturing image data associated of 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 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 electro-magnetic spectrum; and, generating depth information associated with said captured image on the basis of first sharpness information in at least one area of said first image data and second sharpness information in at least one area of said second image data.
222 Citations
21 Claims
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1. A method of processing multi-aperture image data, comprising:
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capturing image data associated of 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 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 of first sharpness information in at least one area of said first image data and second sharpness information in at least one area of said second image data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 16, 17, 18, 19)
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11. A method of determining a depth function using multi-aperture image data, comprising:
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capturing images of one or more objects at different object to camera distances, each image being captured by simultaneously exposing an image sensor 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 aperture; for at least part of said captured images, 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 a depth function by determining a relation between first sharpness information in at least one area of said first image data and second sharpness information in the corresponding area of said second image data as a function of said distances.
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12. A signal processing module, comprising:
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an input for receiving 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; at least one high-pass filter for determining first sharpness information in at least one area of said first image data and second sharpness information in the corresponding area of said second image data; a memory comprising a depth function, said depth function comprising a relation between a difference in sharpness information between image data associated with a first part of the electromagnetic spectrum and image data associated with a second part of the electromagnetic spectrum as a function of a distance; and
,a depth information processor for generating depth information on the basis said depth function and said first and second sharpness information received from said high-pass filter. - View Dependent Claims (14, 20, 21)
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13. A multi-aperture imaging system, comprising:
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an image sensor; an optical lens system; a wavelength-selective multi-aperture configured for simultaneously exposing said image sensor 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 aperture; a first processing module for 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
,a second processing module for generating depth information associated with said image data on the basis of first sharpness information in at least one area of said first image data and second sharpness information in at least one area of said second image data.
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15. (canceled)
Specification