发明名称 |
System and Method for Estimating Color Separation Misregistration Utilizing Frequency-Shifted Halftone Patterns that Form a Moiré Pattern |
摘要 |
A method and system for estimating color separation misregistration of a printing system. The method may include marking a substrate to form a misregistration estimation patch. The misregistration estimation patch being formed by first and second color separations. The first color separation marking the substrate with a first halftone pattern. The first halftone pattern has a first halftone-frequency vector in a first direction and a second halftone-frequency vector in a second direction. The second color separation marking the substrate with a second halftone pattern. The second halftone pattern has a first halftone-frequency vector in a first direction and a second halftone-frequency vector in a second direction. The first and second halftone patterns form a moiré pattern. A deviation in at least one the halftone frequency vectors and/or the moiré pattern can be indicative of a color separation misregistration. The method also includes estimating the color separation misregistration of the printing system using the misregistration estimation patch. |
申请公布号 |
EP1947521(A2) |
申请公布日期 |
2008.07.23 |
申请号 |
EP20080150269 |
申请日期 |
2008.01.15 |
申请人 |
XEROX CORPORATION |
发明人 |
WANG, SHEN-GE;HAINS, CHARLES M.;MCELVAIN, JON S. |
分类号 |
G03G15/01;G03G15/00 |
主分类号 |
G03G15/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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