Global Patent Index - EP 0800684 A4

EP 0800684 A4 19980325 - METHOD AND DEVICE FOR ENCODING/DECODING A DISPLACED FRAME DIFFERENCE

Title (en)

METHOD AND DEVICE FOR ENCODING/DECODING A DISPLACED FRAME DIFFERENCE

Title (de)

VERFAHREN UND GERÄT ZUM KODIEREN UND DEKODIEREN EINES VERSCHOBENEN RAHMENUNTERSCHIEDS

Title (fr)

PROCEDE ET DISPOSITIF POUR CODER/DECODER UNE DIFFERENCE DE TRAME DEPLACEE

Publication

EP 0800684 A4 19980325 (EN)

Application

EP 96929873 A 19960827

Priority

  • US 9614115 W 19960827
  • US 54878995 A 19951026

Abstract (en)

[origin: WO9715897A1] The present invention provides a method (100, 700), device (400, 800) and microprocessor (500) for performing a computationally efficient iterative expansion of a displaced frame difference, DFD, image over a predetermined dictionary of modulated Gaussian functions for the purposes of video compression. The iterative expansion described in this invention decomposes the DFD image into a set of coefficients which represent the perceptually important areas of a video frame in a compact way. The resulting method, device and microprocessor serve to provide a means for very low bit rate coding/decoding of a video sequence.

IPC 1-7

G06K 9/36; G06K 9/46; H04N 7/12; H04N 11/02; H04N 11/04

IPC 8 full level

G06T 9/00 (2006.01); H04N 7/36 (2006.01); H04N 11/04 (2006.01)

CPC (source: EP)

H04N 11/042 (2013.01); H04N 19/503 (2014.11)

Citation (search report)

  • [A] WO 9302526 A1 19930204 - TRAITEMENT DES SIGNAUX LAB DE [CH]
  • [X] NEFF R ET AL: "Very low bit rate video coding using matching pursuits", VISUAL COMMUNICATIONS AND IMAGE PROCESSING '94, CHICAGO, IL, USA, 25-28 SEPT. 1994, vol. 2308, pt.1, ISSN 0277-786X, PROCEEDINGS OF THE SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, 1994, USA, pages 47 - 60, XP002051991
  • [X] VETTERLI M ET AL: "MATCHING PURSUIT FOR COMPRESSION AND APPLICATION TO MOTION COMPENSATED VIDEO CODING", PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (IC, AUSTIN, NOV. 13 - 16, 1994, vol. 1 OF 3, 13 November 1994 (1994-11-13), INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, pages 725 - 729, XP000522039
  • [A] FEICHTINGER H G ET AL: "Hierarchical parallel matching pursuit", IMAGE RECONSTRUCTION AND RESTORATION, SAN DIEGO, CA, USA, 25-26 JULY 1994, vol. 2302, ISSN 0277-786X, PROCEEDINGS OF THE SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, 1994, USA, pages 222 - 232, XP002051992
  • See references of WO 9715897A1

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 9715897 A1 19970501; EP 0800684 A1 19971015; EP 0800684 A4 19980325; TW 395119 B 20000621

DOCDB simple family (application)

US 9614115 W 19960827; EP 96929873 A 19960827; TW 85110931 A 19960906