Image aspect ratio converting apparatus
US6519006B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Mar 29, 2000 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Mar 29, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/0122
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An aspect ratio converter converts a still image signal having an aspect ratio of 4:3 to a still image signal having a predetermined wide aspect ratio. A both-end pixel extractor extracts predetermined amounts of both left and right end images of a horizontal scanning period of the still image signal having an aspect ratio of 4:3. A both-wing image data preparing unit and a both-wing extrapolator use the extracted images to extrapolate a region of from both left and right ends of the horizontal scanning period of the still image signal having an aspect ratio of 4:3 to both left and right ends of the horizontal scanning period of the still image signal having the wide aspect ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.