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A Lower X-Ray Dose, Higher Resolution, Photon-Counting System for Computed Tomography
This technology is an X-ray or Gamma ray imaging system that uses photon-counting to achieve high resolution images with lower radiation doses than traditional machines. The system combines upfront optical gain with high-speed CCD or CMOS detectors to capture images. Then, using Maximum Likelihood Estimation (MLE) techniques to parse the image data,...
Published: 4/3/2023
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Inventor(s): Harrison Barrett, H. Bradford Barber, Lars Furenlid, Brian Miller
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics > Medical Imaging, Technology Classifications > Imaging & Optics
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Coded-Aperture System for Planar Imaging of Volumetric Sources
This invention is a method for obtaining parallel projections (i.e. 2D planar images) of a 3D object without the use of a parallel bore collimator while offering improved resolution and decreased resolution degradation with increasing object depth. The method involves measuring the photon flux of a gamma photon emitting source from within the subject’s...
Published: 4/3/2023
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Inventor(s): Harrison Barrett, Eric Clarkson, Donald Wilson
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics > Lens & System Design, Technology Classifications > Imaging & Optics
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Inverse Optical Design of the Human Eye
Researchers at The University of Arizona and the National University of Ireland, Galway, are developing an innovative method to estimate the full set of patient-specific ocular parameters using wavefront sensors. This 'inverse optical design' method maps the entire eye and shows potential for very low uncertainties. It promises a complete patient-specific...
Published: 4/3/2023
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Inventor(s): Harrison Barrett, Julia Sakamoto, Alexander Goncharov
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics > Ophthalmology, Technology Classifications > Imaging & Optics
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Data Acquisition and Measurement of Characteristic Functionals in Biology and Medicine
This invention presents methods for the estimation of joint characteristic functionals by way of ultrafast fluorescence imaging of multiple physiological random processes, each one labelled with a different fluorescence die.
Background:
Many biologic processes taking place inside a living organism are unpredictable in time and space, and cannot be...
Published: 4/3/2023
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Inventor(s): Luca Caucci, Harrison Barrett
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics > Medical Imaging
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Apparatus and Methods for a Software-Controlled Synthetic Phase Mask via Radiance Function Measurement
This technology measures and uses a radiance function to optimize an optical system to its phase mask. This function does not limit end users to a specific type of phase mask, thus providing the user with more flexibility. In addition, the radiance function data can be processed to emulate any phase mask and therefore works with a mask in an existing...
Published: 4/3/2023
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Inventor(s): Luca Caucci, Harrison Barrett
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Medical Imaging, Technology Classifications > Imaging & Optics > Microscopy, Spectroscopy, Polarimetry
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