Automated inverse telecine conversion
US7369179B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 23, 2004 |
| Grant date | May 6, 2008 |
| Priority date | — |
| Expiry date | Nov 1, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/0112
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention is generally directed to automated methods and systems for converting image streams having a first frame rate to a second frame rate without the need for user intervention. Embodiments of the present invention obviate the effects of processing of a telecine process. In one embodiment, where frames are encoded by a single video field, a statistical analysis of the differences between adjacent frames reveals a telecine pattern, thereby identifying which frames to remove. In another embodiment, where frames are encoded by even and odd video fields, which are interleaved to produce the frame, a statistical analysis of the differences between adjacent fields reveals the telecine pattern, identifies which frames to remove, and identifies frames that are candidates for re-interleaving.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.