Method and apparatus for forming energy subtraction images
First Claim
1. A method of forming an energy subtraction image, comprising the steps of:
- i) obtaining a plurality of radiation image signals respectively representing a plurality of radiation images of an object, which radiation images have been formed with several kinds of radiation having different energy distributions, and ii) forming an energy subtraction image signal from the plurality of the radiation image signals, wherein the energy subtraction image signal is formed as an energy subtraction image signal having a pixel density lower than the pixel density of each of the radiation image signals.
2 Assignments
0 Petitions
Accused Products
Abstract
A plurality of radiation image signals respectively representing a plurality of radiation images of an object, which radiation images have been formed with several kinds of radiation having different energy distributions, are obtained. An energy subtraction image signal is formed from the plurality of the radiation image signals. The energy subtraction image signal is formed as an energy subtraction image signal having a pixel density lower than the pixel density of each of the radiation image signals. The energy subtraction image signal is efficient for transfer to an external device, storage in an external device, and outputting of a visible image with an output device.
-
Citations
5 Claims
-
1. A method of forming an energy subtraction image, comprising the steps of:
-
i) obtaining a plurality of radiation image signals respectively representing a plurality of radiation images of an object, which radiation images have been formed with several kinds of radiation having different energy distributions, and ii) forming an energy subtraction image signal from the plurality of the radiation image signals, wherein the energy subtraction image signal is formed as an energy subtraction image signal having a pixel density lower than the pixel density of each of the radiation image signals. - View Dependent Claims (2)
-
-
3. An apparatus for forming an energy subtraction image, comprising:
-
i) means for obtaining a plurality of radiation image signals respectively representing a plurality of radiation images of an object, which radiation images have been formed with several kinds of radiation having different energy distributions, and ii) image processing means for forming an energy subtraction image signal from the plurality of the radiation image signals, wherein the image processing means forms the energy subtraction image signal as an energy subtraction image signal having a pixel density lower than the pixel density of each of the radiation image signals. - View Dependent Claims (4, 5)
-
Specification