Patent · US Active

Flexible defocus blur for stochastic rasterization

US9465212B2 · kind B2 · utility

3Cited by

4References

25Claims

0Family size

Assignee

Intel Corporation · US

Inventors

Carl J. Munkberg · Malmö, SE
Robert M. Toth · Lund, SE

Key dates

Filing date	Jul 5, 2012
Grant date	Oct 11, 2016
Priority date	—
Expiry date	Feb 20, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG06T15/503
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

User-controllable defocus blur for a stochastic rasterizer may be implemented by modifying circle of confusion coefficients per vertex to express more general defocus blur. The method can be applied to limit the foreground blur, extend the in-focus range, simulate tilt-shift photography, and specify per-object defocus blur. Furthermore, with two simplifying assumptions, existing triangle coverage tests and tile culling tests can be used with very modest modifications.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.