APPARATUS AND METHOD FOR SNAPSHOT SPECTRAL IMAGING
First Claim
1. Apparatus for obtaining a plurality of spectral images of a source object in a snapshot, comprising:
- a) an imaging section of a digital camera that includes a lens and a pixelated image sensor, the imaging section configured to obtain a diffused and dispersed (DD) snapshot image Y; and
b) a digital processor configured to perform two-dimensional compressed sensing spectral cube reconstruction (2D CS-SCR) from snapshot image Y, thereby providing images of the source object in a plurality of spectral bands.
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Abstract
Apparatus and method for obtaining a plurality of spectral images of a source object in a snapshot using comprising two-dimensional compressed sensing data cube reconstruction (2D CS-SCR) applied to a dispersed-diffused snapshot image. In some embodiments, the snapshot image is obtained through a RIP diffuser. In some embodiments, a randomizer is used to further randomized the dispersed-diffused snapshot image. The 2D CS-SCR includes applying a 2D framelet transform separately to arrays representing different wavebands of spectral cube data derived from the snapshot image. The application of the 2D framelet transform separately to the arrays representing the different wavebands includes application of direct and inverse 2D framelet transforms to the arrays. In some embodiments, the direct and inverse framelet transforms are included in a split Bregman iteration.
44 Citations
24 Claims
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1. Apparatus for obtaining a plurality of spectral images of a source object in a snapshot, comprising:
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a) an imaging section of a digital camera that includes a lens and a pixelated image sensor, the imaging section configured to obtain a diffused and dispersed (DD) snapshot image Y; and b) a digital processor configured to perform two-dimensional compressed sensing spectral cube reconstruction (2D CS-SCR) from snapshot image Y, thereby providing images of the source object in a plurality of spectral bands. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for obtaining a plurality of spectral images of a source object in a snapshot, comprising the steps of:
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a) obtaining a diffused and dispersed (DD) snapshot image Y; and b) performing a two-dimensional compressed sensing data cube reconstruction (2D CS-SCR) from snapshot image Y, thereby providing images of the source object in a plurality of spectral bands. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification