Panoramic imaging and display system with canonical magnifier
US7274381B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2004 |
| Grant date | Sep 25, 2007 |
| Priority date | — |
| Expiry date | Dec 20, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/58
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides an image acquisition and viewing system that employs a fish-eye lens and an imager, such as, a CCD array, to obtain a wide angle image, e.g., an image of a hemispherical field of view. The system of the invention further includes a primary display for displaying the image, and a secondary display for presenting a perspective-corrected view of a selected portion of the image. A processor effects correction of a selected portion of the image for distortions introduced by the fish-eye lens by utilizing methods according to the teachings of the invention. The processor further effects the display of the image and its perspective-corrected portion thereof on the primary and the secondary displays, respectively. Moreover, the processor effects the display of a graphical object on the first display to delineate the portion that is presented on the secondary display. This allows a viewer to view simultaneously the image and the perspective-corrected portion, thereby gleaning information regarding the context of the perspective-corrected portion within the entire image while viewing it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.