Setting of imaging parameters using a scanner
US8446640B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2009 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Mar 7, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/04794
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A recording head (16) is operated to form a regular pattern of image swaths on a recording media (17). The regular pattern of image features comprises a first set of image features (60A) that is formed with an imaging parameter set to a first predetermined value and a second set of image features (60B) is formed with an imaging parameter set to a second predetermined value, different from the first predetermined value. Image features in the first set and the second set are arranged on the recording media with a sub-scan spatial frequency equal to a non-integer multiple of a sub-scan spatial frequency of the image swaths. A scanner (40) generates data (47) of the scanned pattern, wherein a first integer multiple of a sampling spatial frequency employed by the scanner is equal to a second integer multiple of the sub-scan spatial frequency of the first set and the second set of image features. The data is analyzed to determine a quantified value representative of banding between the first set of and the second set of image features are adjusted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.