Patent · US Active

Hybrid video decoder, hybrid video encoder, data stream using a reference from a combination of IIR and FIR filters

US9420305B2 · kind B2 · utility

4Cited by

3References

45Claims

0Family size

Assignee

Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

Haricharan Lakshman · Berlin, DE
Heiko Schwarz · Panketal, DE
Benjamin Bross · Berlin, DE
Thomas Wiegand · Berlin, DE

Key dates

Filing date	Oct 12, 2012
Grant date	Aug 16, 2016
Priority date	—
Expiry date	Oct 24, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/80
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A hybrid video decoder has an extractor, a predictor and a reconstructor. The extractor is configured to extract motion information and residual information for a first block of a current picture from a data stream. The predictor is configured to provide, depending on the motion information, a prediction for the block of the current picture by interpolating a reference picture, using a combination of an IIR filter and FIR filter. The reconstructor is configured to reconstruct the current picture at the block using the prediction for the block and the residual information for the block. Furthermore, a hybrid video encoder, a data stream, a method for encoding a video and a method for decoding a video are described.

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