X-ray reduction system
AssigneeControlRad Systems, Inc.
InventorsHaim Zvi Melman, Allon Guez
Life of this patent
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Abstract
A multiple frame x-ray imaging system is disclosed with capability of differential x-ray exposure of different input areas of an image intensifier or other x-ray detector. Collimators are provided to control the amount of radiation in various regions of the image and image processing is provided to provide the display of images of different qualities.
Claims12
An x-ray system comprising:
- an x-ray source;
- an image detector;
- a monitor;
- a controller;
- an image processing unit connected with said detector, said monitor and said controller;
- and
- a collimator connected with said controller, said collimator configured to expose a first area to a first radiation level and a second area to a second radiation level;
- said image processing unit further configured to process said second area to become essentially the same as said first area using a tone-correction function;
- and
- wherein said image processing unit is further configured to adjust the input scale of the tone-correction function to fit changes in x-ray current.
A method of optimizing the display of an x-ray image captured from an x-ray source through a collimator configured to expose a first area to a first radiation level and a second area to a second radiation level, comprising:
- processing said second area to become essentially the same as said first area using a tone-correction function;
- and adjusting the input scale of the tone correction function to fit changes in x-ray current.
Dependencies are inferred from the claim text.