Correction of extended field of view images for distortion due to scanhead motion
US6503201B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2001 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Oct 3, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10132
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Extended field of view (panoramic) ultrasonic images can exhibit dimensional distortion due to the interplay of the direction and speed of scanhead motion and the direction and rate of beam scanning. This distortion can result in measurement inaccuracies when making measurements of anatomy or distances in the panoramic image. This distortional inaccuracy is compensated by adjusting the alignment of elemental images as they are aligned to produce the panoramic images in consideration of the estimated amount of distortion. The technique can be applied to either linear or curved array transducers and to linear or sector scan formats.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.