Identification of blank segments in a set of visual recording data
US7536078B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2002 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Mar 23, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B27/28
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention identifies a blank segment (i.e., a segment that does not correspond to recorded visual content) in a set of visual recording data. The invention identifies a blank segment using a blank frame detector that is adapted to evaluate a frame of visual recording data to determine whether the frame of visual recording data is a blank frame, and a blank segment detector that is adapted to evaluate a characteristic of a group of frames of visual recording data to determine whether the group of frames of visual recording data is a blank segment comprising a plurality of blank frames. Identification of a blank segment can be used to, for example, decide whether to terminate digitization of a set of analog visual recording data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.