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A Filtered Backprojection Algorithm with Characteristics of the Iterative Landweber Algorithm

Invention SummaryA new algorithm has been developed based on Filtered Back-Projection (FBP), but included is a control parameter k that gives an equivalent result to that of the kth iteration of the Landweber algorithm. With that said, the algorithm can be used in all image modalities that use FBP/iterative 3D image reconstruction algorithms: X-ray...

Published: 2/12/2018 | Inventor(s): Gengsheng Zeng

Keywords(s):

Category(s): Imaging, CT

Precise Reconstruction of CT Images at Arbitrary Pitch Values

Invention SummaryA novel theoretically-exact and stable (TES) image reconstruction algorithm for helical cone-beam computed tomography (CT) has been developed and is available for licensing. The resulting image is a combination of at least two sets of image data detected by a detector within and outside of its Tam-Danielsson (TD) window. The combination...

Published: 10/24/2017 | Inventor(s): Harald Schondube, Karl Stierstorfer, Frederic Noo

Keywords(s):

Category(s): Imaging, CT

4D Space Time Organ Motion Estimation from Time Stamped Data

For more information contact TCO Published PCT: PCT/US2010/040582

Published: 7/16/2019 | Inventor(s): Sarang Joshi, Jacob Hinkle, Bill Salter, Preston Thomas Fletcher, Brian Wang

Keywords(s):

Category(s): Imaging, CT

Fast 3D Tomographic Projector/Backprojector

Invention Summary: Calculation of volumetric projection/backprojection is necessary for reconstruction of tomographic data (e.g. PET, SPECT, CT scanners), but this computation can be very time consuming. This fast projector/backprojector greatly reduces the time needed for reconstruction of 3D tomographic data, while at the same time computing a...

Published: 7/16/2019 | Inventor(s): Dan Kadrmas

Keywords(s): Computer Software, Radiology

Category(s): Imaging, CT

A Non-Iterative Image Deblurring Method to Compensate for a Non-Stationary Point Response Function

Invention Description: In many imaging applications, especially in nuclear medicine such as SPECT (single photon emission computed tomography) and PET (positron emission tomography), the images are blurred due to finite detector resolution. This invention is a fast, non-iterative algorithm to de-blur the image that is suffered from non-stationary...

Published: 7/16/2019 | Inventor(s): Gengsheng Zeng

Keywords(s): Medical Devices, Radiology

Category(s): Imaging, CT