Aspect ratio conversion of video content
US6933954B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2003 |
| Grant date | Aug 23, 2005 |
| Priority date | — |
| Expiry date | Jan 28, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/0407
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image of a first aspect ratio is modified to be displayed in a display area with a second aspect ratio. In doing so, the aspect ratio of some of the image content is approximately maintained, yet the aspect ratio of other areas of the image content is stretched so that the entire resulting image fills the display area. This may be done by either using texture mapping to map a strip of content (treated as a texture) into a strip of the destination image. It may also be done by modifying the image content to an intermediate image, which is then uniformly stretched to fill the intended aspect ratio. The areas of image content closest to one or more focus areas is approximately maintained, while other areas are allowed more distortion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.