Method for controlling a 3D patch-driven special effects system
US5369735A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1994 |
| Grant date | Nov 29, 1994 |
| Priority date | — |
| Expiry date | Jan 28, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/2628
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A patch-driven video 3D special effects system constructs an output display of a desired three-dimensional shape with real-time video picture information displayed on the surface of the shape by dividing a video source plane into a plurality of polygonal patches and manipulating said patches in three dimensions to create the shape. The special effects system is controlled by a keyframing control system in which a small number of selected parameters are used to define several general purpose 3D shapes. These parameters are then specified in each keyframe. By varying the selected parameters, the general purpose object can be reshaped into a number of familiar shapes such as cubes, cones, etc. A pre-defined program converts the selected parameters into patch shapes and vertice positions which are used by the video special effects hardware to actually create the images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.