Synthetic aperture optics imaging method using minimum selective excitation patterns
First Claim
1. A method for performing synthetic aperture optics (SAO) on a target including one or more objects, the method comprising the steps of:
- illuminating the target with a predetermined number (N) of selective excitation patterns, wherein the set of N selective excitation patterns results from a design process using a minimum distance (Δ
x) between objects to be resolved by SAO and a width of a detected area (w) captured by a pixel of a system for said optical imaging, wherein the number (N) of selective excitation patterns is substantially determined from;
N=floor(L/2)wherein L is the number of k-space sample points in the k-space, and floor ( ) rounds the number to the nearest but smaller integer; and
L=round((PFOV/Δ
x)2)wherein round ( ) rounds the number to the nearest integer, and PFOV is the extent in the reciprocal space of the k-space to be reconstructed from the samples;
optically imaging the illuminated target at a resolution insufficient to resolve the objects; and
processing optical images of the illuminated target using information on the selective excitation patterns to obtain a final image of the illuminated target at a resolution sufficient to resolve the objects.
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Abstract
A synthetic aperture optics (SAO) imaging method minimizes the number of selective excitation patterns used to illuminate the imaging target, based on the objects'"'"' physical characteristics corresponding to spatial frequency content from the illuminated target and/or one or more parameters of the optical imaging system used for SAO. With the minimized number of selective excitation patterns, the time required to perform SAO is reduced dramatically, thereby allowing SAO to be used with DNA sequencing applications that require massive parallelization for cost reduction and high throughput. In addition, an SAO apparatus optimized to perform the SAO method is provided. The SAO apparatus includes a plurality of interference pattern generation modules that can be arranged in a half-ring shape.
104 Citations
27 Claims
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1. A method for performing synthetic aperture optics (SAO) on a target including one or more objects, the method comprising the steps of:
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illuminating the target with a predetermined number (N) of selective excitation patterns, wherein the set of N selective excitation patterns results from a design process using a minimum distance (Δ
x) between objects to be resolved by SAO and a width of a detected area (w) captured by a pixel of a system for said optical imaging, wherein the number (N) of selective excitation patterns is substantially determined from;N=floor(L/2) wherein L is the number of k-space sample points in the k-space, and floor ( ) rounds the number to the nearest but smaller integer; and L=round((PFOV/Δ
x)2)wherein round ( ) rounds the number to the nearest integer, and PFOV is the extent in the reciprocal space of the k-space to be reconstructed from the samples; optically imaging the illuminated target at a resolution insufficient to resolve the objects; and processing optical images of the illuminated target using information on the selective excitation patterns to obtain a final image of the illuminated target at a resolution sufficient to resolve the objects. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 20, 21, 22, 23)
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10. A system for performing synthetic aperture optics (SAO) on a target including one or more objects, the system comprising:
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a plurality of illumination modules configured to illuminate the target with a predetermined number (N) of selective excitation patterns, wherein the set of N selective excitation patterns results from a design process using a minimum distance (Δ
x) between objects to be resolved by SAO and a width of a detected area (w) captured by a pixel of a system for said optical imaging, wherein the number (N) of selective excitation patterns is substantially determined from;N=floor(L/2) wherein L is the number of k-space sample points in the k-space, and floor ( ) rounds the number to the nearest but smaller integer; and L=round((PFOV/Δ
x)2)wherein round ( ) rounds the number to the nearest integer, and PFOV is the extent in the reciprocal space of the k-space to be reconstructed from the samples; an optical imaging module configured to optically image the illuminated target at a resolution insufficient to resolve the objects; and a SAO processing module configured to process the optical images of the illuminated target using information on the selective excitation patterns to obtain a final image of the illuminated target at a resolution sufficient to resolve the objects. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 24, 25, 26, 27)
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Specification