Patent · US Expired

Method for motion-compensated frame-to-frame prediction coding

US4816906A · kind A · utility

63Cited by

10References

13Claims

0Family size

Assignee

AEG Aktiengesellschaft · DE

Inventors

Georg Kummerfeldt · Neu-Ulm, DE
Franz May
Winfrid Wolf · Ulm, DE

Key dates

Filing date	Aug 31, 1987
Grant date	Mar 28, 1989
Priority date	—
Expiry date	Aug 31, 2007

Classification

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

Abstract

A process of frame-to-frame prediction coding in which a frame is broken down into a regular block scanning field of n x n pixels and then prior to each prediction, up to four prediction methods, namely (1) block-by-block displacement vector calculation, (2) object-related displacement vector calculation, (3) nullification of the displacement, and (4) nullification of the prediction, are monitored as to the data rate to be transmitted, and the prediction method that leads to the smallest prediction errors is selected for the transmission.

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