Method for forming energy subtraction radiation images, and meth

Details Method for forming energy subtraction radiation images, and meth Method for forming energy subtraction radiation images, and meth

1991-02-12

1996-01-16

Hayes, Gail O.

Boots, shoes, and leggings

378 20, 378 62, H04N 532, G06F 1500

Patent

active

054853710

ABSTRACT:
A method and apparatus for forming an energy subtraction image comprises recording a plurality of radiation images of an object on recording media by irradiating several kinds of radiation with different energy levels to the object, which is constituted of a plurality of tissues exhibiting different levels of radiation absorptivity with respect to the several kinds of radiation with different energy levels, and then detecting a plurality of original image signals representing the plurality of the radiation images. A first image signal, which represents a first image primarily composed of patterns of first tissues of the object, is generated from the plurality of the original image signals. A first smoothed image signal is generated by processing the first image signal, the first smoothed image signal representing a first smoothed image in which noise components of the first image have been reduced or eliminated. A second image signal is generated by subtracting the first smoothed image signal from an original image signal, the second image signal representing a second image primarily composed of patterns of second tissues of the object.

REFERENCES:
patent: 4761739 (1988-08-01), Shimura
patent: 4816681 (1989-03-01), Shimura
patent: 4837733 (1989-06-01), Shiraishi et al.
patent: 4983835 (1991-01-01), Takeo
patent: 5020085 (1991-05-01), Kawara et al.
patent: 5029083 (1991-07-01), Shimura et al.
patent: 5029586 (1991-07-01), Honda
patent: 5034988 (1991-07-01), Fujiwara
patent: 5056529 (1991-10-01), Oe
patent: 5122664 (1992-06-01), Ito et al.
"Gazo-shori no Kihon-giho" (Basic Techniques for Images Processing) (Guide to Techniques Edition, by J. Hasgawa, Y. Koshimizu, A. Nakayama and S. Yokoi, Gijutsu Hyoron Sha).

Affiliated with

Also associated with

Rating

Method for forming energy subtraction radiation images, and meth does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for forming energy subtraction radiation images, and meth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for forming energy subtraction radiation images, and meth will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-314199