Image correction method to compensate for point of view image distortion
US6462769B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2000 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Oct 23, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/337
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image correction method of compensating for point of view image distortion in pictures includes the steps of obtaining an image at a first position within a predetermined frame, wherein at the first position the image is distorted due to point of view image distortion. The image obtained comprises an array of pixels. The distorted image is transformed into a compensated image by re-mapping the array of pixels of the distorted image using a predetermined transforming function that stretches the distorted image to fill the entire frame. The transformation function depends on the geometric orientation of the camera, projector, projecting surface, and viewer. The compensated image is projected at a second position different from the first position, wherein the projection of the compensated image substantially reduces point of view image distortion at the first position. This method can be employed for stationary and moving point of views. The method is particularly helpful with amusement rides for viewing 3D stereoscopic images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.