发明名称 Method and apparatus for calibrating a transport scanner and a test original for use with such method
摘要 A method for geometrically calibrating a transport or feed through a scanner apparatus, arranged for scanning a two-dimensional original for subsequent usage in an appropriate information handling system, wherein a test original is presented which has been provided with an image for the purpose of deriving a scanned image therefrom. The method uses the test original provided with a test image featuring a leading image edge and a trailing image edge at a predetermined and known parallel displacement with respect to each other, and automatically detects therefrom a calculated first correction value for the zoom factor in the transport direction or transport speed, a calculated second correction value for the leading edge position, and a calculated third correction value for the trailing edge position. Thereupon, the first, second and third correction values are updated in the scanner apparatus in accordance with the measured values therefor.
申请公布号 US2004150861(A1) 申请公布日期 2004.08.05
申请号 US20030717510 申请日期 2003.11.21
申请人 VAN DER HEIJDEN GERARDUS J.E.L. 发明人 VAN DER HEIJDEN GERARDUS J.E.L.
分类号 H04N1/00;H04N1/04;H04N1/12;H04N1/193;(IPC1-7):H04N1/04;H04N1/10 主分类号 H04N1/00
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