Method and apparatus for inspection for under-resolved features in digital images
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United States of America Patent
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Apr 6, 2004
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app pub date -
Jun 2, 2000
filing date -
Jun 2, 2000
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Abstract
A machine vision inspection system and method that increase the resolution of object image-data without physically manipulating the physical optics of cameras used during inspection. The exemplary embodiment of the invention provides a system and method that perform what may be characterized as a digital zoom. Using this digital zoom, the resolution of object image-data provided by a camera may be artificially increased. Moreover, in accordance with the exemplary embodiment of the invention, a determination may be made regarding whether portions of the object image-data are under-resolved, and based on that determination, a local digital zoom may be performed on that under-resolved portion of object image-data to increase the resolution of that portion of object image-data. Additionally, the resulting portion of the object image-data with increased image resolution may be scaled-back, such that the portion of increased resolution object image-data may be combined with the other object image-data to provide a faithful, scaled representation of the original sample-object and/or sample-object feature.
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- COGNEX CORPORATION
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Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Dutta-Choudhury, Paul | Frankilin, MA | 10 | 228 |
Reyzin, Igor | Needham, MA | 13 | 377 |
Safford, Brad | Framingham, MA | 1 | 14 |
Scola, Joe | Medfield, MA | 1 | 14 |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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