Multiresolution video
US6631240B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1998 |
| Grant date | Oct 7, 2003 |
| Priority date | — |
| Expiry date | Jul 21, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B27/34
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A representation for encoding time varying image data that allows for varying spatial and temporal resolutions in different parts of a video sequence. The representation, called multiresolution video, is based on a sparse, hierarchical encoding of the video data as multiple streams. Operations are defined for creating, viewing, and editing multiresolution video sequences. These operations support a variety of applications, including multiresolution playback, motion-blurred “fast forward” and “reverse,” constant speed display, enhanced video shuttling or searching, and “video clip-art” editing and compositing. The multiresolution representation requires little storage overhead, and the algorithms using the representation are both simple and efficient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.