Image reconstruction
US5937102A · kind A · utility
19Cited by
6References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 9, 1996 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Oct 9, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/421
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Am image is reconstructed from x-ray attenuation data or other types of data using fast Fourier circular convolution (FFCC). Reference spectra and mask functions are generated for the FFCC. Also, the data is zero-padded for the FFCC. The data is transformed, multiplied by a radial filter, and transposed in order to construct the image by FFCC. The reconstructed image is converted from polar to Cartesian coordinates for viewing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.