Identifying a rectangular area in a multi-projector system
US8451297B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2010 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Dec 8, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20116
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Determining a rectangular area with a given aspect ratio within a global boundary formed by multiple projectors. An iterated process is repeated at moved locations along the global boundary, until a stopping condition is met. According to the iterated process, a point at a location of the global boundary is selected, a minimum rectangle with the given aspect ratio is grown from identified directions, and the largest rectangle encountered is delivered when the stopping condition has been met. For each such direction, the minimum rectangle is grown in the direction from the selected point until it intersects with a boundary, the grown rectangle is grown in another direction responsive to a determination that the grown rectangle can grow in another direction. The largest rectangle encountered previously is replaced, responsive to a comparison which indicates that the grown rectangle is larger than the largest rectangle encountered previously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.