Patent · US Active

Texture compression and decompression

US9129543B2 · kind B2 · utility

2Cited by

4References

17Claims

0Family size

Assignee

Telefonaktie L M Ericsson (publ) · SE

Inventors

Jacob Ström · Stockholm, SE
Per Wennersten · Kramfors, SE

Key dates

Filing date	Jun 18, 2010
Grant date	Sep 8, 2015
Priority date	—
Expiry date	Apr 11, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/94
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A compressing of a texel block consisting of two texel sub-bocks involves determining respective value codewords and table codewords for the two texel sub-blocks. The value codewords represent respective base texel values and the table codewords represent respective modifier sets comprising multiple value modifiers for modifying the base texel value associated with the given texel sub-block. Each texel in the texel block is assigned a texel index associated with one of the value modifiers of the modifier set for the texel sub-block to which the texel belongs or indicates that the base texel value of the other texel sub-block is to be used for the texel.

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