Invention Grant
- Patent Title: Method and apparatus for calibrating imaging equipment
- Patent Title (中): 用于校准成像设备的方法和装置
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Application No.: US12256317Application Date: 2008-10-22
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Publication No.: US08488220B1Publication Date: 2013-07-16
- Inventor: Damon E. Ray
- Applicant: Damon E. Ray
- Applicant Address: US MN Maple Grove
- Assignee: Data Recognition Corporation
- Current Assignee: Data Recognition Corporation
- Current Assignee Address: US MN Maple Grove
- Agency: Schwegman Lundberg & Woessner, P.A.
- Main IPC: H04N1/46
- IPC: H04N1/46 ; G03F3/08 ; G06K9/00

Abstract:
Disclosed herein, among other things, are method and apparatus for calibrating imaging equipment. According to one embodiment of a method, a calibration deck of timing sheets is prepared. The calibration deck includes a sheet with a series of reference marks that help determine the amount of skew, a sheet with objective scoring bubbles that are all filled in with black ink, a grey scale bubble sheet having a predetermined number of shades between black and white, and a sheet with objective scoring bubbles that are all unfilled, or white. The timing sheets are scanned on a scanner, and results from scanning the calibration deck are compared to an industry standard baseline.
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