Method for determining necessary resolution for zoom and crop images
US6643416B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1999 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Nov 30, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/3875
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The disclosed method uses empirically derived image quality data in order to determine an image resolution for a particular zoom and/or crop operation performed on an image. An acceptability value is specified for the image, e.g., a specific % acceptable, where the acceptability value relates to empirically derived image quality as perceived by a human viewer. Given selected input and output devices, an image resolution is then generated from a combination of the particular zoom and crop and the specified acceptability value. This resolution is specified as the image resolution, e.g., a minimally acceptable resolution, to produce the desired zoom and crop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.