Patent · US Active

Block-based lossless compression of geometric data

US10866990B2 · kind B2 · utility

5Cited by

0References

24Claims

0Family size

Assignee

NVIDIA Corporation · US

Inventors

Jaakko T. Lehtinen · Helsinki, FI
Timo Oskari Aila · Vantaa, FI
Tero Tapani Karras · Sandbacka, FI
Alexander Keller · Berlin, DE
Nikolaus Binder · Berlin, DE
Carsten Waechter · Berlin, DE
Samuli Matias Laine · Vantaa, FI

Key dates

Filing date	Jul 3, 2019
Grant date	Dec 15, 2020
Priority date	—
Expiry date	Jul 3, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/96
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An apparatus, computer readable medium, and method are disclosed for decompressing compressed geometric data stored in a lossless compression format. The compressed geometric data resides within a compression block sized according to a system cache line. An indirection technique maps a global identifier value in a linear identifier space to corresponding variable rate compressed data. The apparatus may include decompression circuitry within a graphics processing unit configured to perform ray-tracing.

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