Systems and methods for reducing non-uniform rotation distortion in ultrasound images
US8956299B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 2011 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Oct 8, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B8/445
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for generating an ultrasound image includes receiving an image frame having consecutive ultrasound scan lines obtained using a rotating ultrasound imaging arrangement and determining first and second cross-correlation values for a plurality of the scan lines. For each individual scan line, the first cross-correlation value includes a cross-correlation coefficient between a first subframe of consecutive scan lines including the individual scan line and a second subframe of scan lines shifted from the first subframe by a first integer value. The second correlation value includes a cross-correlation coefficient between the first subframe and a third subframe of scan lines shifted from the first subframe by a second integer value. The method further includes evaluating, individually for multiple scan lines, whether that scan line exhibits non-uniform rotation distortion using at least one of the first and second cross-correlation values. A correction for non-uniform rotation distortion is applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.