IP Library Granted Patent US 7,427,769
Granted Patent B2
US 7,427,769 · App. 11/010,658 · Granted Sep 23, 2008

Image carrier for storing X-ray information, and a system and method for processing an image carrier

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Quick Facts
Patent No.
US 7,427,769
App. No.
11/010,658
Granted
Sep 23, 2008
Kind
B2
Abstract

The invention relates to an image carrier for the storage of X-ray information, as well as a corresponding system and method for the processing of such an image carrier. In order to improve the reliability when taking account of the sensitivity of the image carrier to X-radiation, the image carrier includes an electronic memory for the storage of calibration data of the image carrier that represent a measure of the sensitivity of the image carrier to X-radiation and can be used in a processing of image signals that are obtained on a reading of the X-ray information from the image carrier.

Claims (13)

1. A method for the processing of an image carrier for the storage of X-ray information, comprising:

providing the image carrier with an electronic memory for the storage of calibration data of the image carrier that represent a measure of a sensitivity of the image carrier to X-ray radiation;

accessing and using the calibration data from the electronic memory of the image carrier in a processing of image signals that are obtained on reading the X-ray information of a first X-ray photograph from the image carrier by a read-out device during a first reading of the image carrier;

storing the calibration data, after a reading of the calibration data from the electronic memory of the image carrier by the read-out device, so that the calibration data continue to be stored both in the electronic memory of the image carrier and also in a central memory or in a memory of the read-out device after the image carrier has been used to store new X-ray information of new X-ray photographs and prior to subsequent readings of the new X-ray information by the read-out device; and

during subsequent readings of new X-ray information from the same image carrier by the read-out device, using the calibration data of this image carrier that are stored in the central memory or in the memory of the read-out device, which were accessed and stored from the first reading of the image carrier, in a new processing of image signals that are obtained in the subsequent readings of the new X-ray information from the image carrier.

2. A method as claimed in claim 1 , wherein the calibration data are stored in compressed form in the electronic memory of the image carrier.

3. A method as claimed in claim 1 , wherein the step of using the calibration data comprises using the calibration data to compensate for a locally fluctuating sensitivity of the image carrier to X-ray radiation over a storage phosphor layer of the image carrier.

4. A method as claimed in claim 1 , further comprising storing the calibration data in the electronic memory of the image carrier in a two-dimensional data field.

5. A method as claimed in claim 1 , wherein the step of using the calibration data comprises using the calibration data to compensate for locally fluctuating sensitivity of the image carrier in individual regions of the image carrier, in which the individual regions correspond to individual image points that are obtained on a reading of the X-ray information stored in the image carrier.

6. A method as claimed in claim 1 , wherein the step of using the calibration data comprises using the calibration data to compensate for locally fluctuating sensitivity of the image carrier in individual regions of the image carrier, in which the individual regions are larger than individual image points that are obtained on a reading of the X-ray information stored in the image carrier.

7. A method as claimed in claim 1 , further comprising storing the calibration data of the image carrier in a calibration data group in the electronic memory of the image carrier.

8. A method as claimed in claim 7 , further comprising including a version number with the calibration data group that characterizes a structure in which the data of the calibration data group exist.

9. A method as claimed in claim 7 , further comprising including a check sum with the calibration data group that is derived from the data of the calibration data group to check whether the data of the calibration data group have been stored and/or read in an error-free manner.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 24, 2018
From: AGFA HEALTHCARE NV
To: AGFA NV
Reel/Frame 047634/0308 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 20, 2017
From: AGFA-GEVAERT HEALTHCARE GMBH
To: AGFA HEALTHCARE NV
Reel/Frame 042755/0946 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 8, 2005
From: AGFA-GEVAERT A.G. AKA AGFA-GEVAERT AKTIENGESELLSHAFT
To: AGFA-GEVAERT HEALTHCARE GMBH
Reel/Frame 017176/0233 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 9, 2004
From: HAUG, WERNER; ENCKE, WALTER; HUJER, OSKAR
To: AGFA-GEVAERT AKTIENGESELLSCHAFT
Reel/Frame 016098/0420 →