Methods and apparatus utilizing generalized helical interpolation algorithm
US6452996B1 · kind B1 · utility
56Cited by
7References
31Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 16, 2001 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Apr 20, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S378/901
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods and Apparatus to reduce image artifacts when reconstructing an image with a multislice computed tomographic (CT) imaging scanner. An object is helically scanned to obtain a plurality of projection views of an object, a plane of reconstruction is defined, a conjugate sample line is defined that does not intersect the plane of reconstruction, a weighting function is applied to the conjugate samples to reduce image artifacts, and the image is reconstructed after the weighted data is filtered and backprojected. The method reduces potential image artifacts without requiring additional hardware be used or replaced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.