Systems and methods for reconstruction and rendering of viewpoint-adaptive three-dimensional (3D) personas
US10997786B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2018 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Jan 8, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/18
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods relate receiving video streams captured of a subject by video cameras, each video stream including video frames that are time-synchronized with the video, each video camera having a known vantage point in a predetermined coordinate system; obtaining at least one three-dimensional (3D) mesh of the subject, the mesh being time-synchronized and including a plurality of mesh vertices with known locations; identifying a user-selected viewpoint, and identifying a viewpoint-specific subset of the mesh vertices visible; generating 3D submeshes of the subject by calculating visible-vertices lists from the vantage point of each video camera from which the viewpoint-specific subset of mesh vertices is visible; projecting mesh vertices from the calculated visible-vertices lists on to video pixels; and rendering viewpoint-adaptive 3D personas of the subject by weighting video pixel colors from different video-camera vantage points according to the geometric relationship of each video-camera vantage point to the user-selected viewpoint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.