Method for acquisition geometry of an imaging system
US7559694B2 · kind B2 · utility
4Cited by
10References
7Claims
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Key dates
| Filing date | Dec 5, 2005 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | Dec 5, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/4441
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for determining acquisition geometry of an imaging system from a set of calibration matrices for an arbitrary position of the system, a projection matrix makes a point in a 2D image correspond to a point of an object in a space. This matrix is produced for any unspecified position of the system from knowledge of a limited number of pre-computed calibration matrices. For instance, a projection matrix may be computed by interpolating coefficients of calibration matrices and/or applying a transformation with a rigid model defined comprehensively or locally to a particular calibration matrix.
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