Method of scaling partial area of main picture
US7489363B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 6, 2004 |
| Grant date | Feb 10, 2009 |
| Priority date | — |
| Expiry date | Feb 26, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/45
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method of scaling a partial area of a main picture, by which the partial area of the main picture can be magnified in a manner of scaling the partial area of the picture displayed on a screen like using a virtual magnifier without employing a separate expensive hardware resource. The present invention comprises a first step of making a main scaler extract image data of the partial area to be scaled from full image data according to prescribed scaling information including magnification/reduction information for the partial area of a display picture, a second step of making a sub-scaler scale the extracted image data of the partial area at a prescribed rate, and a third step of overlaying the scaled image data of the partial area on the full image data provided from the main scaler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.