Dynamic modification of spatial distortion correction capabilities of scintillation camera
US4316257A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1979 |
| Grant date | Feb 16, 1982 |
| Priority date | — |
| Expiry date | Nov 20, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/1642
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method and apparatus for the dynamic modification of the spatial distortion correction capabilities of a scintillation camera having spatial distortion correction apparatus. The spatial distortion correction apparatus includes a memory having stored therein spatial distortion correction factors in a predetermined addressable format. During the on-line use of the scintillation camera, the spatial distortion correction apparatus transforms the image event coordinate position data from the scintillation camera in accordance with the stored distortion correction factors to provide corrected image event coordinate repositioning data. The spatial distortion correction modification apparatus and method provides modification of the corrected image event coordinate data in accordance with the respective energy levels of the image events to provide accurate spatial distortion correction characteristics for the actual energy levels of the image events. The scintillation camera is thus automatically and dynamically capable of correcting for spatial distortion effects for image events of different energy levels. Different energy levels of image events occur when the scintillation camera is ut…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.