Method and apparatus for the correction of nonlinear field of view distortion of a digital imaging system
US7536053B2 · kind B2 · utility
6Cited by
13References
26Claims
0Family size
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Key dates
| Filing date | Oct 27, 2004 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Jul 20, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T5/80
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Nonlinear distortions of imaging optics within a computer vision system are quantified as corrective values within a viewing window defined by a pixel array. A test artifact is displaced within an object plane through increments of measured distances and the corresponding displacements of the test artifact within an image plane are recorded within the pixel array. Comparisons are made between the actual appearances of the test artifact within the image plane and predicted appearances of the test artifact within the image plane based on the measured displacements in the object plane for determining the corrective values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.