Geometry and view assisted transmission of graphics image streams
US7529418B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 2004 |
| Grant date | May 5, 2009 |
| Priority date | — |
| Expiry date | Sep 21, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T9/001
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Geometry and view data relating to a image sequences is transmitted from a server to a client computer. Such enables reconstruction of images by a client with reduced bandwidth for the image stream transmission. A previous-image mesh of coordinates and depth values for selected pixels from the array of pixels in a previous-image is generated at the server. The depth values are transmitted to the client. A change-in-view matrix is generated at the server and transmitted to the client. Such represents the change in viewing parameters between the previous-image and a current-image. The change-in-view matrix is applied to the previous-image mesh to create a current-image mesh, independently at both the server and at the client. Such is applied to the previous-image to generate a predicted current-image. The current-image is generated at the server and a difference between the current-image and the predicted current-image is computed. The computed difference is transmitted to the client and applied to the predicted current-image generated at the client to generate the current-image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.