Patent · US Active

Reducing noise during rendering by performing parallel path space filtering utilizing hashing

US10614613B2 · kind B2 · utility

3Cited by

8References

23Claims

0Family size

Assignee

NVIDIA Corporation · US

Inventors

Sascha Fricke · Hard, AT
Nikolaus Binder · Berlin, DE
Alexander Keller · Berlin, DE

Key dates

Filing date	Jul 25, 2018
Grant date	Apr 7, 2020
Priority date	—
Expiry date	Jul 25, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG06T15/506
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method, computer readable medium, and system are disclosed for reducing noise during a rendering of a scene by sharing information that is spatially close through path space filtering. A vertex of a light transport path is selected, and one or more features of the selected vertex are quantized. A first hash is calculated based on the one or more quantized features of the selected vertex, and a collision resolution is performed within a hash table. A contribution of the light transport path at the selected vertex is accumulated to the hash table, and a counter is incremented in response to adding the contribution of the light transport path at the selected vertex to the hash table. An average contribution of the light transport path is then calculated, utilizing the counter.

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