Systems, methods and apparatus for specialized filtered back-projection reconstruction for digital tomosynthesis
US7457451B2 · kind B2 · utility
8Cited by
5References
20Claims
0Family size
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Key dates
| Filing date | Dec 4, 2007 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Dec 4, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/436
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems, methods and apparatus are provided through which in one aspect, a three-dimensional (3D) image of an object is constructed from a plurality of two-dimensional (2D) images of the object using a specialized filter. In some embodiments, the specialized filter implements a linear ramp function, a windowing function, and/or a polynomial function. In some embodiments, the 3D image is back-projected from the filtered two-dimensional images, yielding a 3D image that has improved visual distinction of overlapping anatomic structures and reduced blurring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.