Method and system for tag detection and tracking in MRI tagged images
US6934407B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 2001 |
| Grant date | Aug 23, 2005 |
| Priority date | — |
| Expiry date | Oct 15, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/246
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image processing method of accurately fully automatically detecting Tag Points (16) of a tagged image (10) of a sequence of MRI tagged images (for example, SPAMM protocol) comprises the steps of estimating (13) optimum value points of the intensity profile; labeling said points as Candidate Points (14) of a tag; automatically constructing (18) a Predicted Image (17) from determined Tags equations (19) of at least a preceding image of the sequence and from spatial and temporal parameters; detecting (15) Tag Points (16) among Candidate Points (14), using characteristics of the constructed Predicted Image (17); determining (20) Tag equations (21) from detected Tag Points (16), said Tag equations (21) intended to be used in the construction (18) of at least another Predicted Image for a next image of the sequence. The method further allows assigning a Tag Point to a specific Tag whatever the temporal resolution, this feature allowing the tracking of Tags from one image to the next of the sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.