Actions for Extended depth of field imaging for high speed object analysis

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Extended depth of field imaging for high speed object analysis

Author
Liang, Luchuan
Published
August 23, 2011.
Physical Description
1 electronic document
Additional Creators
Frost, Keith, Ortyn, William, Bauer, Richard, Perry, David, Hall, Brian, and Basiji, David
Online Version

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Unclassified, Unlimited, Publicly available.
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Summary
A high speed, high-resolution flow imaging system is modified to achieve extended depth of field imaging. An optical distortion element is introduced into the flow imaging system. Light from an object, such as a cell, is distorted by the distortion element, such that a point spread function (PSF) of the imaging system is invariant across an extended depth of field. The distorted light is spectrally dispersed, and the dispersed light is used to simultaneously generate a plurality of images. The images are detected, and image processing is used to enhance the detected images by compensating for the distortion, to achieve extended depth of field images of the object. The post image processing preferably involves de-convolution, and requires knowledge of the PSF of the imaging system, as modified by the optical distortion element.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 20110015432.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 16202491