Patent · US Active

Compression and decompression of reference images in a video encoder

US9723318B2 · kind B2 · utility

1Cited by

6References

9Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Bernhard Agthe · Birkenfeld, DE
Peter Amon · Birkenfeld, DE
Gero Bäse · Birkenfeld, DE
Andreas Hutter · Munich, DE
Robert Kutka · Geltendorf, DE
Norbert Oertel · Landshut, DE

Key dates

Filing date	Jan 12, 2012
Grant date	Aug 1, 2017
Priority date	—
Expiry date	Jan 14, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/46
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Methods and devices transform image data, which are transformed by a compression filter before being compressed and stored in a reference image memory. In an extension, an inverse transformation to that of the compression filter is performed by a decompression filter when image data from the reference memory are read out and decompressed. The methods and devices can be used for image compression methods and image decompression methods that use reference image memories.

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