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1. WO2010005691 - RATE CONTROL MODEL ADAPTATION BASED ON SLICE DEPENDENCIES FOR VIDEO CODING

Publication Number WO/2010/005691
Publication Date 14.01.2010
International Application No. PCT/US2009/047317
International Filing Date 15.06.2009
Chapter 2 Demand Filed 15.04.2010
IPC
H04N 7/50 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
24Systems for the transmission of television signals using pulse code modulation
26using bandwidth reduction
50involving transform and predictive coding
H04N 7/26 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
24Systems for the transmission of television signals using pulse code modulation
26using bandwidth reduction
CPC
H04N 19/103
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
103Selection of coding mode or of prediction mode
H04N 19/12
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
12Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
H04N 19/124
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
124Quantisation
H04N 19/137
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
134characterised by the element, parameter or criterion affecting or controlling the adaptive coding
136Incoming video signal characteristics or properties
137Motion inside a coding unit, e.g. average field, frame or block difference
H04N 19/14
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
134characterised by the element, parameter or criterion affecting or controlling the adaptive coding
136Incoming video signal characteristics or properties
14Coding unit complexity, e.g. amount of activity or edge presence estimation
H04N 19/142
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
134characterised by the element, parameter or criterion affecting or controlling the adaptive coding
142Detection of scene cut or scene change
Applicants
  • DOLBY LABORATORIES LICENSING CORPORATION [US]/[US] (AllExceptUS)
  • LEONTARIS, Athanasios [GR]/[US] (UsOnly)
  • TOURAPIS, Alexandros [CY]/[US] (UsOnly)
Inventors
  • LEONTARIS, Athanasios
  • TOURAPIS, Alexandros
Agents
  • GOERKE, Lawrence, R.
  • DENDORFER, Claus
Priority Data
61/061,94116.06.2008US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) RATE CONTROL MODEL ADAPTATION BASED ON SLICE DEPENDENCIES FOR VIDEO CODING
(FR) ADAPTATION DE MODÈLE DE COMMANDE DE DÉBIT BASÉE SUR DES DÉPENDANCES DE TRANCHE POUR CODAGE VIDÉO
Abstract
(EN)
Statistics for estimating quantization factors of a coding-unit type (e.g., B-coded or I-coded) pictures are determined from other, possibly different (e.g., P-coded) pictures, or previously coded coding-units. Bit rate and quality relationships between such coding-unit types may be used with the quantization parameters. Estimating bit rate and quality relationships between coding-unit types enables accurate rate control for pictures regardless of their coding-unit type. Bit rate and quality relationships between coding-unit types can be used with multiple rate control models to increase compression. Rate control parameters may be adjusted with statistics generated by a motion estimation and compensation framework. Rate control performance may be controlled in transcoding compressed bit streams.
(FR)
Selon l'invention, des statistiques permettant d'estimer des facteurs de quantification d'images d'un type d'unité de codage (par exemple, des images B ou des images I) sont déterminées à partir d'autres images possiblement différentes (par exemple, des images P), ou d'unités de codage précédemment codées. Des relations de débit binaire et de qualité entre ces types d'unité de codage peuvent être utilisées avec les paramètres de quantification. L'estimation de relations de débit binaire et de qualité entre des types d'unité de codage permet une commande de débit précise pour des images indépendamment de leur type d'unité de codage. Des relations de débit binaire et de qualité entre des types d'unité de codage peuvent être utilisées avec de multiples modèles de commande de débit pour augmenter la compression. Des paramètres de commande de débit peuvent être ajustés avec des statistiques générées par une architecture d'estimation et de compensation de mouvement. Des performances de commande de débit peuvent être contrôlées dans le transcodage de flux binaires compressés.
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