Circuit and method for decoding an encoded version of an image having a first resolution directly into a decoded version of the image having a second resolution
US6690836B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2000 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Dec 18, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing circuit includes a processor that receives an encoded portion of a first version of an image. The processor decodes this encoded portion directly into a decoded portion of a second version of the image, the second version having a resolution that is different than the resolution of the first version. Therefore, such an image processing circuit can decode an encoded hi-res version of an image directly into a decoded lo-res version of the image. Alternatively, the image processing circuit includes a processor that modifies a motion vector associated with a portion of a first version of a first image. The processor then identifies a portion of a second image to which the modified motion vector points, the second image having a different resolution than the first version of the first image. Next, the processor generates a portion of a second version of the first image from the identified portion of the second image, the second version of the first image having the same resolution as the second image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.