Context-preserving display system using a perspective sheet
US5689287A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1996 |
| Grant date | Nov 18, 1997 |
| Priority date | — |
| Expiry date | Jan 22, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04805
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A substitute image is generated by dividing a full image into panels defined by a center (or focus) panel, for use in applications where the full image is not entirely displayable on a given display device at a necessary resolution. The full image is bounded by a bounding rectangle, the focus panel is a rectangle with sides parallel to the sides of the bounding rectangle, and the focus panel defines eight other panels, four side panels and four corner panels. The substitute image is the focus panel, with the side panels folded into a smaller cross section, but remaining continuous with the focus panel, and the corner panels folded and sheared to remain continuous with the side panels in a three-dimensional ("3D") space in which a viewpoint and a view plane representing the display surface is also located. To focus on an area of the image which is not under the focus panel, the viewer selects a point in the area of interest, and the display system moves the image so that the selected point is under the focus panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.