Invisible or low perceptibility of image alignment in dual projection systems
US10326968B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2012 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Dec 3, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/363
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A dual projection system can align displayed images using an alignment pattern. The alignment pattern can be used to modify part of an image content frame of an image data sequence. Two image data sequences can be spatially aligned based on the modification to part of the image content frame using the alignment pattern. An image content frame may be warped and displayed. The displayed warped image content frame can be captured. A set of transformation vectors can be determined based on the captured image content frame and alignment image data. Stored transformation data can be updated using the set of transformation vectors and the updated transformation data can be used to spatially align two image data sequences.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.