Method of reconstructing cross-section image
US4326252A · kind A · utility
21Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1979 |
| Grant date | Apr 20, 1982 |
| Priority date | — |
| Expiry date | Dec 10, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S378/901
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method is disclosed in which projection images of a certain cross-section of an object are produced through irradiation from various directions to the cross-section, and a three-dimensional image of the cross-section is reconstructed from the projection images. A convolution integral operation is performed on the projection images by means of a weighting function obtained from a function whose second differentiation is positive in at least a predetermined range of a spacial frequency domain and which has a positive first-differential coefficient at a point where the spacial frequency is equal to zero.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.