Reduced representations of video sequences
US7149974B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2002 |
| Grant date | Dec 12, 2006 |
| Priority date | — |
| Expiry date | Aug 15, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2562
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system that represents a video sequence comprising plurality of video clips as a number of images. The plurality of video clips is represented as a reduced representation of video images. A video clip is represented as a keyframe, wherein multiple keyframes may then be arranged according to chronological order. All or only a representative portion of the video clips can be represented as keyframes. The size of the keyframe may be configured to represent the length or importance of the video clip. The keyframe may depict an entire frame of a video clip, or a region of meaningful information within a frame of a video clip. Multiple keyframes may be arranged in a two dimensional array, in an S-shaped curve, or some other pattern. The keyframes may depict motion of an object occurring over time in the video clip by configuring groups of pixels in the key frame. Configuring groups of pixels may include colorizing pixel groups and depicting pixel groups at a semi-transparent level according to the number of frames between the keyframe and the frame containing the object in motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.