Method of calibrating a detector and calibration sphere for the same
First Claim
Patent Images
1. A method of calibrating a detector, comprising:
- providing a calibration object that mimics a golf ball having an indicium and an axis of rotation;
making an image of the indicium with a detector;
comparing the image with a predetermined image; and
adjusting the detector so that a subsequent image of the indicium more-closely matches the predetermined image.
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Abstract
A method of calibrating a detector using a calibration object having a rounded surface and indicia is disclosed. The calibration object, when coupled with a detector and analyzer, assists in minimizing image distortion caused by misalignment of the detector relative to the calibration object. A calibration object is also disclosed.
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Citations
24 Claims
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1. A method of calibrating a detector, comprising:
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providing a calibration object that mimics a golf ball having an indicium and an axis of rotation; making an image of the indicium with a detector; comparing the image with a predetermined image; and adjusting the detector so that a subsequent image of the indicium more-closely matches the predetermined image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for calibrating a detector, comprising:
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positioning a calibration sphere at a position on a golf ball production line occupied by a golf ball during golf ball inspection; imaging the calibration object using a line scan camera detector to produce an image; comparing the image with an predetermined image; and adjusting the detector. - View Dependent Claims (17, 18, 19, 20)
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21. A method for calibrating an image of a calibration object rotatable by a device comprising the steps of:
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rotating the calibration object with the device; providing at least two indicia that make a first angle with each other; obtaining a digital image of the calibration object; determining a second angle between the corresponding indicia on the image; determining an adjustment factor from the first and second angle; applying said adjustment factor to images of other objects rotated by said device. - View Dependent Claims (22, 23, 24)
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Specification