Bibliografische Daten

Dokument WO002008080881A1 (Seiten: 44)

Bibliografische Daten Dokument WO002008080881A1 (Seiten: 44)
INID Kriterium Feld Inhalt
54 Titel TI [EN] METHOD AND DEVICE FOR CODING A SEQUENCE OF DIGITIZED IMAGES
[FR] PROCD ET DISPOSITIF DE CODAGE D'UNE SQUENCE D'IMAGES NUMRISES
71/73 Anmelder/Inhaber PA HUTTER ANDREAS, DE ; KAUP ANDRE, DE ; LI XIANG, CN ; SIEMENS AG, DE
72 Erfinder IN HUTTER ANDREAS, DE ; KAUP ANDRE, DE ; LI XIANG, CN
22/96 Anmeldedatum AD 20.12.2007
21 Anmeldenummer AN 2007064330
Anmeldeland AC EP
Veröffentlichungsdatum PUB 10.07.2008
33
31
32
Priorität PRC
PRN
PRD
EP
06027030
20061228
33
31
32
PRC
PRN
PRD
EP
07011265
20070608
51 IPC-Hauptklasse ICM H04N 7/26 (2006.01)
51 IPC-Nebenklasse ICS H04N 7/50 (2006.01)
IPC-Zusatzklasse ICA
IPC-Indexklasse ICI
Gemeinsame Patentklassifikation CPC Neues Fenster: Externer Link Gemeinsame Patentklassifikation H04N 19/19 H04N 19/19
Neues Fenster: Externer Link Gemeinsame Patentklassifikation H04N 19/149 H04N 19/149
Neues Fenster: Externer Link Gemeinsame Patentklassifikation H04N 19/61 H04N 19/61
Neues Fenster: Externer Link Gemeinsame Patentklassifikation H04N 19/176 H04N 19/176
Neues Fenster: Externer Link Gemeinsame Patentklassifikation H04N 19/172 H04N 19/172
Neues Fenster: Externer Link Gemeinsame Patentklassifikation H04N 19/103 H04N 19/103
Neues Fenster: Externer Link Gemeinsame Patentklassifikation H04N 19/147 H04N 19/147
MCD-Hauptklasse MCM H04N 7/26 (2006.01)
MCD-Nebenklasse MCS H04N 7/50 (2006.01)
MCD-Zusatzklasse MCA
57 Zusammenfassung AB [EN] This invention relates to a method and device that are using a Lagrange cost function for optimizing rate and distortion for coding of digitized images. Both the distortion and the rate model used for coding of a present image are based on a probability distribution of transformed residual coefficients of a previously coded image, on a quantization interval and on a rounding offset of the quantization interval of the respective image. The rate model is based on an entropy for the quantized non-zero coefficients of the previously coded image, whereby the entropy is generated using the probability distribution, the quantization interval and the rounding offset.
[FR] La prsente invention concerne un procd et un dispositif qui emploient une fonction cot de Lagrange pour optimiser un dbit et une distorsion en vue d'un codage d'images numrises. La distorsion et le modle de dbit utiliss pour le codage d'une image prsente sont bass sur une distribution de probabilit de coefficients rsiduels transforms d'une image pralablement code, sur un intervalle de quantification et sur un dcalage d'arrondi de l'intervalle de quantification de l'image respective. Le modle de dbit est bas sur une entropie des coefficients non nuls quantifis de l'image pralablement code, de sorte que l'entropie est obtenue en utilisant la distribution de probabilit, l'intervalle de quantification et le dcalage d'arrondi.
Korrekturinformation KORRINF
56 Entgegengehaltene Patentdokumente/Zitate,
in Recherche ermittelt
CT
WO001996034495A2
WO001998038800A1
56 Entgegengehaltene Patentdokumente/Zitate,
vom Anmelder genannt
CT
56 Entgegengehaltene Nichtpatentliteratur/Zitate,
in Recherche ermittelt
CTNP HENG Z: "R-D function of H.264/AVC transf. coeffs" VIDEO STANDARDS AND DRAFTS, XX, XX, Nr. JVT-Q080r1, 11. Oktober 2005 (2005-10-11), XP030006239 7;
LAN J ET AL: "Operational distortion-quantization curve-based bit allocation for smooth video quality" JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION, ACADEMIC PRESS, INC, US, Bd. 16, Nr. 4-5, 1. August 2005 (2005-08-01), Seiten 527-543, XP004949550 ISSN: 1047-3203 7;
XIANG LI ET AL: "Adaptive Lagrange multiplier selection for intra-frame video coding" 2007 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (IEEE CAT. NO.07CH37868) IEEE PISCATAWAY, NJ, USA, 2007, Seite 4 pp., XP002480637 ISBN: 1-4244-0920-9 7;
XIANG LI ET AL: "Advanced Lagrange Multiplier Selection for Hybrid Video Coding" MULTIMEDIA AND EXPO, 2007 IEEE INTERNATIONAL CONFERENCE ON, IEEE, PI, 1. Juli 2007 (2007-07-01), Seiten 364-367, XP031123637 ISBN: 978-1-4244-1016-3 7;
ZHIHAI HE ET AL: "A Linear Source Model and a Unified Rate Control Algorithm for DCT Video Coding" IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, Bd. 12, Nr. 11, 1. November 2002 (2002-11-01), XP011071890 ISSN: 1051-8215 in der Anmeldung erwhnt 7
56 Entgegengehaltene Nichtpatentliteratur/Zitate,
vom Anmelder genannt
CTNP
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