Multi-resolution predictive foveation for bandwidth reduction of moving images
US7499594B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2002 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Dec 16, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/17
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scene of an image sequence is compressed using a number of foveation zones, each foveation zone being weighted based on a probability of a viewer looking at a corresponding portion of the first scene. Each foveation zone in the scene has a corresponding resolution to ensure that at least one object therein is viewer-recognizable. Another scene of the image sequence is compressed using a different number of foveation zones, each foveation zone being weighted based on a probability of a viewer looking at a corresponding portion of the second scene. Each foveation zone in the other scene has a corresponding resolution to ensure that at least one object therein is viewer-recognizable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.