Image processing in microsphere arrays
First Claim
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1. A method of registering an analytical image of a microsphere array comprising:
- a) providing a microsphere array, wherein said microsphere array comprises;
i) a substrate with a surface comprising discrete sites; and
ii) a population of microspheres comprising at least a first and a second subpopulation each comprising a bioactive agent, wherein said population of microspheres is distributed on said surface such that each of said discrete sites contain no more than 1 microsphere;
b) decoding said microsphere array so that the location of each bioactive agent is elucidated;
c) computing a registration grid based on known locations of said bioactive agents from information obtained from step (b);
d) contacting said array with a sample comprising target analytes;
e) acquiring a hybridization intensity image of said microsphere array, wherein said hybridization intensity image comprises a first bright bead type to serve as a fiducial;
f) overlaying the registration grid onto said hybridization intensity image;
g) determining an average intensity for the first bright bead type; and
h) positioning the registration grid such that the average intensity of the first bright bead type is maximal, thereby registering the analytical image of the microsphere array.
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Abstract
Described herein are methods for registering analytical images comprising obtaining an image of an array, wherein the image depicts fiducials that can be used to register the sequential images of the array by determining the average intensity of the fiducials and then positioning the sequential images such that the average intensity of the fiducials attains either a maximum or minimum value.
157 Citations
11 Claims
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1. A method of registering an analytical image of a microsphere array comprising:
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a) providing a microsphere array, wherein said microsphere array comprises; i) a substrate with a surface comprising discrete sites; and ii) a population of microspheres comprising at least a first and a second subpopulation each comprising a bioactive agent, wherein said population of microspheres is distributed on said surface such that each of said discrete sites contain no more than 1 microsphere; b) decoding said microsphere array so that the location of each bioactive agent is elucidated; c) computing a registration grid based on known locations of said bioactive agents from information obtained from step (b); d) contacting said array with a sample comprising target analytes; e) acquiring a hybridization intensity image of said microsphere array, wherein said hybridization intensity image comprises a first bright bead type to serve as a fiducial; f) overlaying the registration grid onto said hybridization intensity image; g) determining an average intensity for the first bright bead type; and h) positioning the registration grid such that the average intensity of the first bright bead type is maximal, thereby registering the analytical image of the microsphere array. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification