Method for correcting image distortion due to gradient nonuniformity
US4591789A · kind A · utility
65Cited by
3References
13Claims
0Family size
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Key dates
| Filing date | Dec 23, 1983 |
| Grant date | May 27, 1986 |
| Priority date | — |
| Expiry date | Dec 23, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/385
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for correcting image distortion arising from magnetic field gradient nonuniformity in accordance with which the gradient nonuniformity is modeled, the expected distortion in the image calculated, and a geometric correction applied to the distorted image. In the preferred embodiment, polynomial interpolation is used to implement the geometric correction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.