Title:
DISPLAY METHOD FOR RADIATION IMAGE
Document Type and Number:
Japanese Patent JP3240235
Kind Code:
B2
Abstract:
PURPOSE: To display an image which is originally displayed by a matrix of the number of picture elements, which exceeds the resolution of a display device, by processing with a reconstitution algorithm a residual image signal and detailed image signals by retrieval and correction and operating the signals which are correction-processed in the respective images.
CONSTITUTION: An optically stimulable phosphor screen 3 is exposed 2 to X rays passing through an object and a radiation image is recorded. The screen 3 is transported by a cassette having EEPROM. The image signal is decomposed into a detailed image component and a residual image component in a series of plural resolution levels and the image signals of the respective components are preserved in a memory. The preserved detail image signals are retrieved and pixel values are corrected and the pixel values of a corrected detail image signal group is generated. A retrieval operation is restricted so that resolution after the processing becomes not more than the resolution of a display device. The residual image signal and the retrieved and corrected detailed image signals are processed by a reconstitution algorithm by such a method that an original image or the image which is closely approximated is generated, and the image signals are calculated.
Inventors:
Ton Bitael
Lucian Eyan
Piete Wirstek
Lucian Eyan
Piete Wirstek
Application Number:
JP4034294A
Publication Date:
December 17, 2001
Filing Date:
February 14, 1994
Export Citation:
Assignee:
AGFA-GEVAERT NAAMLOZE VENNOOTSCHAP
International Classes:
G06F17/30; G06T1/00; G06T3/40; G06T5/00; G06T5/20; (IPC1-7): G06T5/20; G06F17/30; G06T1/00; G06T3/40
Domestic Patent References:
| JP5183757A | ||||
| JP3261232A | ||||
| JP63173465A | ||||
| JP6289175A | ||||
| JP60148279A |
Attorney, Agent or Firm:
Mitsuo Adachi (1 outside)