Method of and device for reducing artefacts in computed tomography images
US4272820A · kind A · utility
15Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 4, 1978 |
| Grant date | Jun 9, 1981 |
| Priority date | — |
| Expiry date | Dec 4, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S378/901
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of reducing artefacts in uncorrected images which are obtained by computer tomography and which consist of a reconstructed object image and an outer region which surrounds the object image. Image data in those elements of the outer region which are associated with a measuring path are used to derive error signals. The error signals are subtracted from the image data in elements of the uncorrected image in order to reduce artefacts which extend through the image in straight strips.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.