Reconstruction of dynamic scenes based on differences between collected view and synthesized view
US11741643B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 22, 2021 |
| Grant date | Aug 29, 2023 |
| Priority date | — |
| Expiry date | Oct 10, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/441
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for generating a 4D representation of a scene in motion given a sinogram collected from the scene while in motion. The system generates, based on scene parameters, an initial 3D representation of the scene indicating linear attenuation coefficients (LACs) of voxels of the scene. The system generates, based on motion parameters, a 4D motion field indicating motion of the scene. The system generates, based on the initial 3D representation and the 4D motion field, a 4D representation of the scene that is a sequence of 3D representations having LACs. The system generates a synthesized sinogram of the scene from the generated 4D representation. The system adjusts the scene parameters and the motion parameters based on differences between the collected sinogram and the synthesized sinogram. The processing is repeated until the differences satisfy a termination criterion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.