System and method of correcting a non-concentric ultrasonic iris inspection result
US9726641B2 · kind B2 · utility
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11References
19Claims
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Key dates
| Filing date | Sep 5, 2014 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Dec 16, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/2636
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is an ultrasonic IRIS inspection system and a method of providing automatically compensated concentric B-scans by means of curve-fitting the unadjusted tube boundaries from inspection data, and from the curve fitted theoretical circle, using non-linear regression analysis to determine an adjusted center. The off-center distance between the adjust center and the misaligned center is then used to produce concentric inspection result by compensating the unadjusted inspection result with the off-center distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.