Methods and systems for fast three-dimensional image segmentation and annotation by imitating weak supervision
US12327361B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2022 |
| Grant date | Jun 10, 2025 |
| Priority date | — |
| Expiry date | Jan 10, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30096
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Various methods and systems are provided for segmenting a three-dimensional (3D) region of interest (ROI) from an image sequence. In one embodiment, a method includes receiving a positive point selection or negative point selection for an ROI in a first image slice of an image sequence, mapping the first image slice and the positive point selection or negative point selection to a first segmentation mask of the ROI using a weakly supervised segmentation model, simulating positive and negative point selections in a second image slice based on the first segmentation mask to produce a plurality of simulated positive and negative point selections, wherein the second image slice is adjacent to the first image slice, and mapping the second image slice and the plurality of simulated positive and negative point selections to a second segmentation mask for the ROI in the second image slice using the weakly supervised segmentation model.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.