Arithmetic unit for image transformation and monitoring system
US6574376B1 · kind B1 · utility
9Cited by
3References
8Claims
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Key dates
| Filing date | Sep 30, 1999 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Sep 30, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T3/047
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An arithmetic unit for image transformation for transforming a fisheye image obtained by using a fisheye lens into a plane image for display, comprising: a first coordinate calculating unit for obtaining first projection coordinates derived by projecting coordinates on the plane image onto a fisheye image face as an imaginary object face; and a second coordinate calculating unit for obtaining second projection coordinates derived by projecting the first projection coordinates obtained by the first coordinate calculating unit onto the fisheye image face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.