Three-dimensional motion mapping for cloud gaming
US8913664B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 16, 2011 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Aug 18, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/597
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Three-dimensional motion mapping is disclosed. A reverse three-dimensional transform for a set of anchor pixels in the current frame is performed using a model-view matrix, a projection matrix, and view parameters associated with the computer game. Reverse transformed anchor pixels are indicated as occluded if the estimated depth for the pixel in the previous frame is greater than a real depth for the pixel in the previous frame or otherwise indicated as visible. A motion vector map for a subset of the reverse transformed pixels is constructed. A best target motion vector for a first set of sections in the current frame is derived or motion estimation is performed for sections in a second set that contain occluded pixels. Target motion vectors for groups of two or more sections of the current frame comprising two or more adjoining sections each with best target motion vectors are derived.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.