Compensation of computed tomography data for X-ray detector afte

Details Compensation of computed tomography data for X-ray detector afte Compensation of computed tomography data for X-ray detector afte

1990-11-19

1993-11-23

Envall, Jr., Roy N.

Boots, shoes, and leggings

3644132, G06F 1500

Patent

active

052650138

ABSTRACT:
An x-ray CT system has a detector which revolves about the object being imaged to acquire attenuation data from many different angles through a range of at least 180.degree.. The response of the detector has a time lag which as the detector revolves tends to blur the attenuation data. The acquired data is compensated for the resolution degradation by convolving the data with a function that is the inverse of a response function of the detector. An image can be reconstructed from this compensated data. However, this compensation process tends to reintroduce noise that was reduced by the blurring. As a result, a modified version of the detector response function is applied to the compensated data to reduce the noise without degrading the image resolution to an unacceptable level.

REFERENCES:
patent: 4112303 (1978-09-01), Brandt
patent: 4115695 (1978-09-01), Kelman
patent: 4494141 (1985-01-01), Altekruse
patent: 4583240 (1986-04-01), Gatten et al.
patent: 4636641 (1987-01-01), Mori et al.
patent: 4674045 (1987-06-01), Kerber et al.
patent: 4707607 (1987-11-01), Whetten
patent: 4747973 (1988-05-01), Cusano et al.
patent: 4831598 (1989-05-01), Koike et al.
patent: 5073858 (1991-12-01), Mills
patent: 5128864 (1992-06-01), Waggener et al.
patent: 5140520 (1992-08-01), Matsumura
patent: 5142286 (1992-08-01), Ribner et al.

Affiliated with

Also associated with

Rating

Compensation of computed tomography data for X-ray detector afte does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compensation of computed tomography data for X-ray detector afte, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compensation of computed tomography data for X-ray detector afte will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1854568