System and method for evaluating and correcting image quality in an image generating device
US8469485B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2012 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Jan 23, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J29/393
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A system evaluates image quality in an image generating system. The system includes a test pattern generator configured to generate an image with an image generating system, an image capture device configured to generate a digital signal corresponding to the generated test pattern, an image evaluator configured to process the digital signal to detect and correct anomalies detected in the generated test pattern, a plurality of calibration tools, each calibration tool being comprised of at least one test pattern, at least one set of detection criteria, and at least one set of anomaly correction parameters, and a controller configured to select the calibration tools for operation of the test pattern generator and the image evaluator in accordance with a predetermined sequence that attenuates changes arising from application of correction parameters of one calibration tool upon a later selected calibration tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.