Volume rendering using N-pass sampling
US8928656B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2012 |
| Grant date | Jan 6, 2015 |
| Priority date | — |
| Expiry date | Sep 14, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/08
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for increasing resolution of an object and increasing rendering speed by rendering with a lesser density for non-object regions. The system and method includes sampling a plurality of first rays in a first density through a volume, each first ray being in a separate section, if a sampling value difference of at least two first rays is above a first threshold, sampling a plurality of second rays in a second density, the second rays being in a first section of the separate sections, the first section being for one of the at least two first rays, and if a sampling value difference between a first one of the second rays and another ray is above a second threshold, sampling a plurality of third rays in a second section spatially different than the first section, the sampling of the third rays being at the second spatial density and the second section being a neighboring section to the first section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.