Patent · US Expired

Method for transformation-coding full motion image sequences

US7397857B2 · kind B2 · utility

28Cited by

7References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Alexander Romanowski · Hildesheim, DE
Sven Bauer · Vaterstetten, DE
Peter Siepen · Oberhausen, DE
Mathias Wien · Aachen, DE
Thomas Wedi · Groß-Umstadt, DE

Key dates

Filing date	Mar 16, 2001
Grant date	Jul 8, 2008
Priority date	—
Expiry date	Feb 9, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/61
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

In the case of a method for transformation encoding of moving-image sequences, motion vectors are estimated block-by-block, with which said motion vectors a motion compensation is carried out. The prediction error is transformation-encoded. According to the invention, the block size of the transformation encoding is coupled to the block size used in each case for the motion compensation. This measure makes it possible to enhance the efficiency of the encoding of the prediction error in hybrid encoding procedures that use various block sizes.

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