Method, apparatus, and software product for generating outlines for raster-based rendered images
US5767857A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 1996 |
| Grant date | Jun 16, 1998 |
| Priority date | — |
| Expiry date | Aug 30, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T17/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method apparatus, and software product generates raster-based complete outlines of raster-based rendered images based on 3D models. Preliminary outlines of a rendered image are created from the subregion identifiers, position data, and orientation data from the rendered image database. These preliminary outlines are then combined and refined to generate the final image outline. Subregion identifiers identify various subregions or materials in the image. Position data describes a distance between a pixel and a reference point. The orientation data describes the orientation of the underlying models at each pixel in the image. In one embodiment, orientation data describes variations in orientation at a given pixel with respect to some number of nearby pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.