Automated Measurement of Positional Accuracy in the Qualification of High-Accuracy Plotters
AssigneeThe Boeing Company
InventorsRobert Michael Lawton, Craig S. Bosma, Lindsay Leigh Waite Jones
Life of this patent
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AssigneeThe Boeing Company
InventorsRobert Michael Lawton, Craig S. Bosma, Lindsay Leigh Waite Jones
Estimating the term…
Systems and methods for assessing plotting device accuracy in aid of a process for qualifying plotter systems. The system and process involve an ideal (virtual) test pattern consisting of digital data defining a nominal grid augmented by geometric features (e.g., closed two-dimensional geometric shapes which respectively surround intersections or vertices of the nominal grid). The plotting device under test is commanded to print a test plot having a pattern that matches the test pattern, but the test plot may deviate from the test pattern. To measure the amount of deviation, first an image of the test plot on the printed medium is captured using an accurate optical scanner. Then a mathematical measurement process, implemented in a computer vision application (e.g., a software package), is employed to detect deviations of the test plot from the test pattern. A statistical analysis is then performed to determine whether the deviations are within specifications.
A method for measuring positional accuracy of a plotter, the method comprising:
A system for measuring positional accuracy of a plotter, the system comprising:
A method for measuring positional accuracy of a plotter comprising:
Dependencies are inferred from the claim text.