Comparison of optical and magnetic character data for identification of character defect type
US8180137B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2010 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Nov 7, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/2253
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for determining a plurality of PCS values for a document image representing a document having at least one area of interest on a surface of the physical item for containing critical data and a background image positioned on the surface, the document suitable for positioning in a digital image recorder, the system determines from the memory a plurality of PCS threshold values having specified surface locations matching the assigned locations of the calculated PCS values and compares the PCS threshold values with the calculated PCS values to determine whether the target portions satisfy their respective PCS threshold values; wherein the degree of target portions that satisfy their PCS threshold value is indicative of the acceptability of the design of the background image when processed by the digital image recorder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.