Patent · US Active

Method of compressing and decompressing image data

US10785493B2 · kind B2 · utility

0Cited by

4References

26Claims

0Family size

Assignee

ARNOLD & RICHTER CINE TECHNIK GMBH & CO. BETRIEBS KG · DE

Inventors

Kevin Abraham · Munich, DE
Florian Bauer · Friedberg, DE
Peter Geissler · Munich, DE

Key dates

Filing date	Sep 12, 2019
Grant date	Sep 22, 2020
Priority date	—
Expiry date	Sep 12, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/593
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A method of compressing image data is described in which a difference value is formed for a respective pixel, said difference value corresponding to a predetermined relation between the pixel value and the estimated pixel value of the respective pixel and being represented by a first binary word that has a first length. The first binary word is encoded by at least one second binary word that has a second predetermined length. the first length is compared with the second length to determine whether the first length is smaller than the second length, with the first binary word otherwise being completely encoded by a single second binary word when the first length is smaller than the second length, and with the first binary word otherwise being completely encoded by a plurality of second binary words. A method of decompressing image data is furthermore described that corresponds to a reversal of the compression method.

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