Calibration artifact and method of using the same
First Claim
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1. A calibration artifact for calibrating a machine vision measurement system, the calibration artifact comprising:
- a rigid substrate; and
a plurality of concentric rings on one surface of the substrate, each ring of a different pre-defined size and wherein the change between the size of any two rings is different than the change in size of any other two adjacent rings.
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Abstract
A calibration artifact and a method of calibrating a machine vision measurement system. The calibration artifact includes a substrate and a number of concentric rings on one surface of the substrate. Each ring is of a different pre-defined size. The change in the size of any two adjacent rings is different than the change in size of any other two adjacent rings.
17 Citations
4 Claims
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1. A calibration artifact for calibrating a machine vision measurement system, the calibration artifact comprising:
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a rigid substrate; and
a plurality of concentric rings on one surface of the substrate, each ring of a different pre-defined size and wherein the change between the size of any two rings is different than the change in size of any other two adjacent rings. - View Dependent Claims (2)
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3. A calibration artifact for a machine vision measurement system, the calibration artifact comprising:
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a substrate; and
a plurality of concentric shapes on one surface of the substrate, each shape of a different pre-defined size and wherein the change between the size of any two adjacent shapes is different than the change in size between any other two adjacent shapes.
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4. A calibration system comprising:
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a calibration artifact including;
a substrate; and
a plurality of concentric rings on one surface of the substrate, each ring of a different pre-defined size and wherein the change between the size of any two adjacent rings is different than the change between the size of any other two adjacent rings; and
a software algorithm including a database containing the size of each ring and data reflecting the change in size between each pair of adjacent rings.
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Specification