Semi-supervised 3D object tracking in videos via 2D semantic keypoints
US11922640B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2021 |
| Grant date | Mar 5, 2024 |
| Priority date | — |
| Expiry date | Apr 1, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30261
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for 3D object tracking is described. The method includes inferring first 2D semantic keypoints of a 3D object within a sparsely annotated video stream. The method also includes matching the first 2D semantic keypoints of a current frame with second 2D semantic keypoints in a next frame of the sparsely annotated video stream using embedded descriptors within the current frame and the next frame. The method further includes warping the first 2D semantic keypoints to the second 2D semantic keypoints to form warped 2D semantic keypoints in the next frame. The method also includes labeling a 3D bounding box in the next frame according to the warped 2D semantic keypoints in the next frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.