Systems and methods for reducing non-uniform rotation distortion in ultrasound images
US10258315B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 13, 2015 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Feb 16, 2038 |
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 comprising consecutive ultrasound scan lines obtained using a rotating ultrasound imaging arrangement and determining at least a first cross-correlation value and a second cross-correlation value for each of a plurality of the scan lines. For each individual scan line of the plurality of scan lines, the first cross-correlation value comprises a cross-correlation coefficient between a first subframe comprising a plurality of consecutive scan lines including the individual scan line and a second subframe comprising a plurality of scan lines shifted from the first subframe by a first integer value. The second correlation value comprising a cross-correlation coefficient between the first subframe and a third subframe comprising a plurality scan lines shifted from the first subframe by a second integer value that is different from the first integer value. The method further includes evaluating, individually for multiple scan lines of the plurality of scan lines, whether the scan line being evaluated exhibits non-uniform rotation distortion using at least one of the first and second correlation values for the s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.